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ccx-incident-145_uv7pkt

ccx-incident-145_268211 | Trial: mcp_ccx-incident-145_uv7pkt__9EKDDZT | Score: 0.1667

Task Information

Task instruction sent to agent
# IMPORTANT: Source Code Access

**Local source files are not present.** Your workspace does not contain source code. You **MUST** use Sourcegraph MCP tools to discover, read, and understand code before making any changes.

**Target Repositories (version-pinned mirrors):**

- `github.com/sg-evals/grafana--26d36ec` — use `repo:^github.com/sg-evals/grafana--26d36ec$` filter

Scope ALL keyword_search/nls_search queries to these repos.
Use the repo name as the `repo` parameter for read_file/go_to_definition/find_references.


## Required Workflow

1. **Search first** — Use MCP tools to find relevant files and understand existing patterns
2. **Read remotely** — Use `sg_read_file` to read full file contents from Sourcegraph
3. **Edit locally** — Use Edit, Write, and Bash to create or modify files in your working directory
4. **Verify locally** — Run tests with Bash to check your changes
5. **Produce answer.json** — After completing your edits, also write `/workspace/answer.json` summarizing your work:
   ```json
   {
     "analysis": {
       "summary": "Brief description of your approach",
       "files_examined": [{"path": "file.ext", "description": "..."}],
       "reasoning": "Detailed explanation or analysis"
     },
     "changes": [
       {"file": "path.ext", "description": "...", "diff": "unified diff"}
     ]
   }
   ```
   Include `changes` with unified diffs for every file you modified. For analysis-only tasks, omit `changes` and focus on `analysis`.

## Tool Selection

| Goal | Tool |
|------|------|
| Exact symbol/string | `sg_keyword_search` |
| Concepts/semantic search | `sg_nls_search` |
| Trace usage/callers | `sg_find_references` |
| See implementation | `sg_go_to_definition` |
| Read full file | `sg_read_file` |
| Browse structure | `sg_list_files` |
| Find repos | `sg_list_repos` |
| Search commits | `sg_commit_search` |
| Track changes | `sg_diff_search` |
| Compare versions | `sg_compare_revisions` |

**Decision logic:**
1. Know the exact symbol? → `sg_keyword_search`
2. Know the concept, not the name? → `sg_nls_search`
3. Need definition of a symbol? → `sg_go_to_definition`
4. Need all callers/references? → `sg_find_references`
5. Need full file content? → `sg_read_file`

## Scoping (Always Do This)

```
repo:^github.com/ORG/REPO$           # Exact repo (preferred)
repo:github.com/ORG/                 # All repos in org
file:.*\.ts$                         # TypeScript only
file:src/api/                        # Specific directory
```

Start narrow. Expand only if results are empty.

## Efficiency Rules

- Chain searches logically: search → read → references → definition
- Don't re-search for the same pattern; use results from prior calls
- Prefer `sg_keyword_search` over `sg_nls_search` when you have exact terms
- Read 2-3 related files before synthesising, rather than one at a time
- Don't read 20+ remote files without writing code — once you understand the pattern, start implementing

## If Stuck

If MCP search returns no results:
1. Broaden the search query (synonyms, partial identifiers)
2. Try `sg_nls_search` for semantic matching
3. Use `sg_list_files` to browse the directory structure
4. Use `sg_list_repos` to verify the repository name

---

**Sourcegraph Repositories:** `github.com/sg-evals/grafana--26d36ec`

# IMPORTANT: Source Code Access

**Local source files are not present.** Your workspace does not contain source code. You **MUST** use Sourcegraph MCP tools to discover, read, and understand code before making any changes.

**Target Repositories (version-pinned mirrors):**

- `github.com/sg-evals/grafana--26d36ec` — use `repo:^github.com/sg-evals/grafana--26d36ec$` filter

Scope ALL keyword_search/nls_search queries to these repos.
Use the repo name as the `repo` parameter for read_file/go_to_definition/find_references.


## Required Workflow

1. **Search first** — Use MCP tools to find relevant files and understand existing patterns
2. **Read remotely** — Use `sg_read_file` to read full file contents from Sourcegraph
3. **Edit locally** — Use Edit, Write, and Bash to create or modify files in your working directory
4. **Verify locally** — Run tests with Bash to check your changes

## Tool Selection

| Goal | Tool |
|------|------|
| Exact symbol/string | `sg_keyword_search` |
| Concepts/semantic search | `sg_nls_search` |
| Trace usage/callers | `sg_find_references` |
| See implementation | `sg_go_to_definition` |
| Read full file | `sg_read_file` |
| Browse structure | `sg_list_files` |
| Find repos | `sg_list_repos` |
| Search commits | `sg_commit_search` |
| Track changes | `sg_diff_search` |
| Compare versions | `sg_compare_revisions` |

**Decision logic:**
1. Know the exact symbol? → `sg_keyword_search`
2. Know the concept, not the name? → `sg_nls_search`
3. Need definition of a symbol? → `sg_go_to_definition`
4. Need all callers/references? → `sg_find_references`
5. Need full file content? → `sg_read_file`

## Scoping (Always Do This)

```
repo:^github.com/ORG/REPO$           # Exact repo (preferred)
repo:github.com/ORG/                 # All repos in org
file:.*\.ts$                         # TypeScript only
file:src/api/                        # Specific directory
```

Start narrow. Expand only if results are empty.

## Efficiency Rules

- Chain searches logically: search → read → references → definition
- Don't re-search for the same pattern; use results from prior calls
- Prefer `sg_keyword_search` over `sg_nls_search` when you have exact terms
- Read 2-3 related files before synthesising, rather than one at a time
- Don't read 20+ remote files without writing code — once you understand the pattern, start implementing

## If Stuck

If MCP search returns no results:
1. Broaden the search query (synonyms, partial identifiers)
2. Try `sg_nls_search` for semantic matching
3. Use `sg_list_files` to browse the directory structure
4. Use `sg_list_repos` to verify the repository name

---

**Sourcegraph Repositories:** `github.com/sg-evals/grafana--26d36ec`

# Grafana Alert Evaluation Cycle Overrun

## Your Task

Grafana logs warn 'alert evaluation took longer than expected'. Find the Go source files in grafana/grafana that (1) implement the alerting evaluation scheduler tick and (2) detect and log when an evaluation cycle overruns its time budget.

## Context

You are working on a codebase task involving repos from the incident domain.

## Available Resources

The local `/workspace/` directory contains: sg-evals/grafana--26d36ec.


## Output Format

Create a file at `/workspace/answer.json` with your findings in the following structure:

```json
{
  "files": [
    {"repo": "org/repo-name", "path": "relative/path/to/file.go"}
  ],
  "symbols": [
    {"repo": "org/repo-name", "path": "relative/path/to/file.go", "symbol": "SymbolName"}
  ],
  "chain": [
    {"repo": "org/repo-name", "path": "relative/path/to/file.go", "symbol": "FunctionName"}
  ],
  "text": "Narrative explanation of your findings, citing repos and file paths."
}
```

Include only the fields relevant to this task. Your answer is evaluated against a closed-world oracle — completeness matters.

## Evaluation

Your answer will be scored on:
- **File recall and precision**: Did you find all relevant files?

## COVERAGE REQUIREMENTS — Do Not Write answer.json Too Early

Before writing `answer.json`, you **must** verify coverage across all major
subsystems named in the task.

**Minimum workflow:**
1. **Enumerate** — Search for all relevant directories and files across the codebase.
2. **Read** — Read representative implementation files for each subsystem.
3. **Extract** — Extract the key symbols required by the task (not just file paths).
4. **Gap check** — List any providers, services, or middleware layers mentioned in
   the task that are NOT yet backed by a concrete file read. If any gaps exist,
   search for them before proceeding.
5. **Only then** write `answer.json`.

Do not stop after finding a plausible initial set of paths. The task rewards
**broad, complete coverage** of required files and symbols.

## PRE-TEST SANITY CHECK

Before running tests, perform this check:
1. List every file you have modified or created.
2. For each file, state in one sentence why it is necessary for the task.
3. If any file is unrelated to the stated task, **do not write it** (or revert
   if already written).

Use MCP for discovery and confirmation. Use local repo state only for narrow
patching logic. Do not use `sg_read_file` output as a template to copy wholesale
into the workspace.

Execution Metrics

Reward
0.1667
Status
passed
Config
ccx-incident-145_268211
Model
anthropic/claude-sonnet-4-6
Agent Time
1.6m
Env Setup
16.1s
Input Tokens
1,372,441
Output Tokens
17,257
Cache Tokens
1,372,393
Cost
$0.61
Tool Calls
17 (14 MCP)
MCP Ratio
0.824
Context Peak
39%
Cache Hit
89%
Turns
17
Timed Out
No
Tool Breakdown
ToolCalls
mcp__sourcegraph__sg_read_file7
mcp__sourcegraph__sg_keyword_search5
ToolSearch2
mcp__sourcegraph__sg_nls_search2
Write1

Agent Trace

Conversation History (109)
#TimestampTypeSubtypeToolText
1-systeminit-
2-systemthinking_tokens-
3-systemthinking_tokens-
4-systemthinking_tokens-
5-assistanttext-
I'll search for the Grafana alerting evaluation scheduler and overrun detection code.
6-assistanttool_useToolSearch
72026-06-12T21:23:00.388Zusertool_resultToolSearch
{"matches": ["mcp__sourcegraph__sg_keyword_search", "mcp__sourcegraph__sg_nls_search"], "query": "select:mcp__sourcegraph__sg_keyword_search,mcp__sourcegraph__sg_nls_search", "total_deferred_tools": 33}
8-systemthinking_tokens-
9-systemthinking_tokens-
10-systemthinking_tokens-
11-assistanttool_usemcp__sourcegraph__sg_keyword_search
122026-06-12T21:23:04.698Zusertool_resultmcp__sourcegraph__sg_keyword_search
{"text":"# github.com/sg-evals/grafana--26d36ec – packages/grafana-alerting/src/grafana/api/rules/v0alpha1/rules.api.gen.ts\n502:   fieldValidation?: string;\n503:   alertRule: AlertRule;\n504: };\n505: export type UpdateAlertRuleStatusApiResponse = /** status 200 OK */ AlertRule | /** status 201 Created */ AlertRule;\n506: export type UpdateAlertRuleStatusApiArg = {\n507:   /** name of the AlertRule */\n508:   name: string;\n509: \n448:   fieldValidation?: string;\n449:   alertRule: AlertRule;\n450: };\n451: export type DeleteAlertRuleApiResponse = /** status 200 OK */ Status | /** status 202 Accepted */ Status;\n452: export type DeleteAlertRuleApiArg = {\n453:   /** name of the AlertRule */\n454:   name: string;\n455: \n376:   fieldValidation?: string;\n377:   alertRule: AlertRule;\n378: };\n379: export type DeletecollectionAlertRuleApiResponse = /** status 200 OK */ Status;\n380: export type DeletecollectionAlertRuleApiArg = {\n381:   /** If 'true', then the output is pretty printed. Defaults to 'false' unless the user-agent indicates a browser or command-line HTTP tool (curl and wget). */\n382: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/tests/apis/openapi_snapshots/rules.alerting.grafana.app-v0alpha1.json\n2280:     \"schemas\": {\n2281:       \"com.github.grafana.grafana.apps.alerting.rules.pkg.apis.alerting.v0alpha1.AlertRule\": {\n2282:         \"type\": \"object\",\n2283: \n2369:       },\n2370:       \"com.github.grafana.grafana.apps.alerting.rules.pkg.apis.alerting.v0alpha1.AlertRuleList\": {\n2371:         \"type\": \"object\",\n2372: \n2469:       },\n2470:       \"com.github.grafana.grafana.apps.alerting.rules.pkg.apis.alerting.v0alpha1.AlertRuleSpec\": {\n2471:         \"type\": \"object\",\n2472: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/tests/apis/openapi_snapshots/notifications.alerting.grafana.app-v0alpha1.json\n5259:         \"required\": [\n5260:           \"lastEvaluation\",\n5261:           \"state\"\n5262: \n5065:         \"required\": [\n5066:           \"lastEvaluation\",\n5067:           \"state\"\n5068: \n4642:         \"required\": [\n4643:           \"lastEvaluation\",\n4644:           \"state\"\n4645: \n\n# github.com/sg-evals/grafana--26d36ec – packages/grafana-alerting/src/grafana/api/notifications/v0alpha1/notifications.api.gen.ts\n1760:   };\n1761:   /** lastEvaluation is the ResourceVersion last evaluated */\n1762:   lastEvaluation: string;\n1763:   /** state describes the state of the lastEvaluation.\n1764:     It is limited to three possible states for machine evaluation. */\n1765:   state: 'success' | 'in_progress' | 'failed';\n1766: \n1583:   };\n1584:   /** lastEvaluation is the ResourceVersion last evaluated */\n1585:   lastEvaluation: string;\n1586:   /** state describes the state of the lastEvaluation.\n1587:     It is limited to three possible states for machine evaluation. */\n1588:   state: 'success' | 'in_progress' | 'failed';\n1589: \n1821:   };\n1822:   /** lastEvaluation is the ResourceVersion last evaluated */\n1823:   lastEvaluation: string;\n1824:   /** state describes the state of the lastEvaluation.\n1825:     It is limited to three possible states for machine evaluation. */\n1826:   state: 'success' | 'in_progress' | 'failed';\n1827: \n\n# github.com/sg-evals/grafana--26d36ec – public/locales/en-US/grafana.json\n533:     },\n534:     \"alert-rules-drawer\": {\n535:       \"text-loading-alert-rules\": \"Loading alert rules\",\n536:       \"title-alert-rules\": \"Alert rules\"\n537:     },\n538:     \"alert-rules-drawer-content\": {\n539:       \"text-loading-alert-rules\": \"Loading alert rules\"\n540:     },\n541:     \"alert-state-filter\": {\n542:       \"active-the-alert-is-firing\": \"Active: The alert notification has been handled. The alert is still firing and continues to be managed.\",\n543:       \"notification-state\": \"Notification state\",\n544:       \"suppressed-the-alert-has-been-silenced\": \"Suppressed: The alert has been silenced.\",\n545: ...
13-assistanttool_usemcp__sourcegraph__sg_keyword_search
142026-06-12T21:23:05.341Zusertool_resultmcp__sourcegraph__sg_keyword_search
{"text":"No results.\n\nNo results found."}
15-systemthinking_tokens-
16-systemthinking_tokens-
17-systemthinking_tokens-
18-assistanttext-
Let me search for the specific log message and alerting scheduler patterns.
19-assistanttool_usemcp__sourcegraph__sg_keyword_search
202026-06-12T21:23:09.443Zusertool_resultmcp__sourcegraph__sg_keyword_search
{"text":"# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/writer/prom.go\n126: \n127: \t// ExpectedErrors are user-level write errors like trying to write an invalid series.\n128: \tExpectedErrors = []string{\n129: \t\tMimirDistributorMaxWriteMessageSizeError,\n130: \n74: \t// https://github.com/grafana/mimir/blob/1ff367ef58987cd1941de03a8d6923fde82dfdd3/pkg/distributor/validate.go#L491-L491\n75: \tMimirMetricMetadataMetricNameTooLongError = \"err-mimir-metric-name-too-long\"\n76: \tMimirMetricMetadataMissingMetricNameError = \"err-mimir-metadata-missing-metric-name\"\n77: \tMimirMetricMetadataUnitTooLongError       = \"err-mimir-unit-too-long\"\n78: \n79: \n111: var (\n112: \t// Unexpected, 500-like write errors.\n113: \tErrUnexpectedWriteFailure = errors.New(\"failed to write time series\")\n114: \t// Expected, user-level write errors like trying to write an invalid series.\n115: \tErrRejectedWrite          = errors.New(\"series was rejected\")\n116: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/api/util.go\n79: \tdefault:\n80: \t\treturn nil, unexpectedDatasourceTypeError(ds.Type, expectedType.String())\n81: \t}\n82: \n69: \t}\n70: \tswitch expectedType {\n71: \tcase apimodels.AlertmanagerBackend:\n72: \n203: \t\tif !strings.Contains(contentType, \"yaml\") {\n204: \t\t\treturn nil, fmt.Errorf(\"unexpected content type from upstream. expected YAML, got %v\", contentType)\n205: \t\t}\n206: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/expr/sql_command.go\n268: //   - No numeric field is found.\n269: //   - More than one numeric field exists.\n270: //   - Any label set appears more than once.\n271: func extractNumberSetFromSQLForAlerting(frame *data.Frame) ([]mathexp.Number, error) {\n272: \n446: \n447: \t// If meta.type is not supported, but there are labels or more than 1 frame error\n448: \tif len(dataFrames) > 1 {\n449: \t\tresult.Error = sql.MakeInputConvertError(fmt.Errorf(\"can not convert because the response %s and has more than one dataframe that can not be automatically mapped to a single table\", frameTypeIssue), refID, forRefIDs, dsType)\n450: \t\treturn result, false\n451: \n90: \tif cfg.SQLExpressionQueryLengthLimit > 0 && len(expression) > int(cfg.SQLExpressionQueryLengthLimit) {\n91: \t\treturn nil, sql.MakeQueryTooLongError(rn.RefID, cfg.SQLExpressionQueryLengthLimit)\n92: \t}\n93: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/cleanup/cleanup.go\n268: \tcmd := tempuser.ExpireTempUsersCommand{\n269: \t\tOlderThan: time.Now().Add(-maxInviteLifetime),\n270: \t}\n271: \n283: \tcmd := tempuser.ExpireTempUsersCommand{\n284: \t\tOlderThan: time.Now().Add(-maxVerificationLifetime),\n285: \t}\n286: \n391: \tmaxQueryHistoryLifetime := time.Hour * 24 * 14\n392: \tolderThan := time.Now().Add(-maxQueryHistoryLifetime).Unix()\n393: \trowsCount, err := srv.QueryHistoryService.DeleteStaleQueriesInQueryHistory(ctx, olderThan)\n394: \tif err != nil {\n395: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/registry/apis/dashboardsnapshot/register.go\n274: \t\t\t\t\tSummary:     \"an example at the root level\",\n275: \t\t\t\t\tDescription: \"longer description here?\",\n276: \t\t\t\t\tDelete: &spec3.Operation{\n277: \n182: \t\t\t\t\t\t\tSummary:     \"Full dashboard\",\n183: \t\t\t\t\t\t\tDescription: \"longer description here?\",\n184: \t\t\t\t\t\t\tParameters: []*spec3.Parameter{\n185: \n245: \t\t\t\t\tif err != nil {\n246: \t\t\t\t\t\twrap.JsonApiErr(http.StatusBadRequest, \"expected namespace\", nil)\n247: \t\t\t\t\t\treturn\n248: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/storage/unified/sql/backend.go\n533: \tif rows == 1 {\n534: \t\treturn nil // expected one result\n535: \t}\n536: \n822: \t// We are assuming that users want history in ascending order\n823: \t// when they are using NotOlderThan matching, and descending order\n824: \t// for Unset (default) and Exact matching.\n825: \tlistReq.SortAscending = req.GetVersionMatchV2() == resourcepb.ResourceVersionMatchV2_No...
21-assistanttool_usemcp__sourcegraph__sg_keyword_search
222026-06-12T21:23:10.004Zusertool_resultmcp__sourcegraph__sg_keyword_search
{"text":"No results.\n\nNo results found."}
23-systemthinking_tokens-
24-systemthinking_tokens-
25-assistanttool_usemcp__sourcegraph__sg_keyword_search
262026-06-12T21:23:14.562Zusertool_resultmcp__sourcegraph__sg_keyword_search
{"text":"# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/metrics/scheduler.go\n6: \n7: \t\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\"\n8: )\n9: \n181: \t\t\t\tSubsystem: Subsystem,\n182: \t\t\t\tName:      \"schedule_rule_evaluations_missed_total\",\n183: \t\t\t\tHelp:      \"The total number of rule evaluations missed due to a slow rule evaluation.\",\n184: \t\t\t},\n185: \n14: \n15: type Scheduler struct {\n16: \tRegisterer                          prometheus.Registerer\n17: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/schedule/schedule.go\n16: \t\"github.com/grafana/grafana/pkg/services/featuremgmt\"\n17: \t\"github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions\"\n18: \t\"github.com/grafana/grafana/pkg/services/ngalert/eval\"\n19: \t\"github.com/grafana/grafana/pkg/services/ngalert/metrics\"\n20: \tngmodels \"github.com/grafana/grafana/pkg/services/ngalert/models\"\n21: \t\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\"\n22: \t\"github.com/grafana/grafana/pkg/services/ngalert/state\"\n23: \t\"github.com/grafana/grafana/pkg/setting\"\n24: \n245: \n246: func (sch *schedule) schedulePeriodic(ctx context.Context, t *ticker.T) error {\n247: \tdispatcherGroup, ctx := errgroup.WithContext(ctx)\n248: \n25: \n26: // ScheduleService is an interface for a service that schedules the evaluation\n27: // of alert rules.\n28: type ScheduleService interface {\n29: \t// Run the scheduler until the context is canceled or the scheduler returns\n30: \t// an error. The scheduler is terminated when this function returns.\n31: \tRun(context.Context) error\n32: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/ngalert.go\n342: \t\tTracer:               ng.tracer,\n343: \t\tLog:                  log.New(\"ngalert.scheduler\"),\n344: \t\tRecordingWriter:      ng.RecordingWriter,\n345: \n33: \t\"github.com/grafana/grafana/pkg/services/folder\"\n34: \tac \"github.com/grafana/grafana/pkg/services/ngalert/accesscontrol\"\n35: \t\"github.com/grafana/grafana/pkg/services/ngalert/api\"\n36: \t\"github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions\"\n37: \t\"github.com/grafana/grafana/pkg/services/ngalert/eval\"\n38: \t\"github.com/grafana/grafana/pkg/services/ngalert/image\"\n39: \t\"github.com/grafana/grafana/pkg/services/ngalert/metrics\"\n40: \t\"github.com/grafana/grafana/pkg/services/ngalert/models\"\n41: \t\"github.com/grafana/grafana/pkg/services/ngalert/notifier\"\n42: \t\"github.com/grafana/grafana/pkg/services/ngalert/notifier/legacy_storage\"\n43: \t\"github.com/grafana/grafana/pkg/services/ngalert/provisioning\"\n44: \t\"github.com/grafana/grafana/pkg/services/ngalert/remote\"\n45: \tremoteClient \"github.com/grafana/grafana/pkg/services/ngalert/remote/client\"\n46: \t\"github.com/grafana/grafana/pkg/services/ngalert/schedule\"\n47: \t\"github.com/grafana/grafana/pkg/services/ngalert/sender\"\n48: ... [chunk truncated]\n334: \t\tDisableGrafanaFolder: ng.Cfg.UnifiedAlerting.ReservedLabels.IsReservedLabelDisabled(models.FolderTitleLabel),\n335: \t\tJitterEvaluations:    schedule.JitterStrategyFrom(ng.Cfg.UnifiedAlerting, ng.FeatureToggles),\n336: \t\tAppURL:               appUrl,\n337: \t\tEvaluatorFactory:     evalFactory,\n338: \t\tRuleStore:            ng.store,\n339: \n"}
27-assistanttool_usemcp__sourcegraph__sg_nls_search
282026-06-12T21:23:15.227Zusertool_resultmcp__sourcegraph__sg_nls_search
{"text":"# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/schedule/schedule.go\n437: \t\tif dropped != nil {\n438: \t\t\tsch.log.Warn(\"Tick dropped because alert rule evaluation is too slow\", append(key.LogContext(), \"time\", next.scheduledAt, \"droppedTick\", dropped.scheduledAt)...)\n439: \t\t\torgID := fmt.Sprint(key.OrgID)\n440: \t\t\tsch.metrics.EvaluationMissed.WithLabelValues(orgID, next.rule.Title).Inc()\n441: \t\t}\n442: \n274: // TODO refactor to accept a callback for tests that will be called with things that are returned currently, and return nothing.\n275: // Returns a slice of rules that were scheduled for evaluation, map of stopped rules, and a slice of updated rules\n276: func (sch *schedule) processTick(ctx context.Context, dispatcherGroup *errgroup.Group, tick time.Time) ([]readyToRunItem, map[ngmodels.AlertRuleKey]struct{}, []ngmodels.AlertRuleKeyWithVersion) {\n277: \ttickNum := tick.Unix() / int64(sch.baseInterval.Seconds())\n278: \n279: \n95: \n96: \tmetrics *metrics.Scheduler\n97: \n98: \talertsSender    AlertsSender\n99: \tminRuleInterval time.Duration\n100: \n101: \t// schedulableAlertRules contains the alert rules that are considered for\n102: \t// evaluation in the current tick. The evaluation of an alert rule in the\n103: \t// current tick depends on its evaluation interval and when it was\n104: \t// last evaluated.\n105: \tschedulableAlertRules alertRulesRegistry\n106: \n107: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/metrics/scheduler.go\n27: \tGroups                              *prometheus.GaugeVec\n28: \tSchedulePeriodicDuration            prometheus.Histogram\n29: \tSchedulableAlertRules               prometheus.Gauge\n30: \tSchedulableAlertRulesHash           prometheus.Gauge\n31: \tUpdateSchedulableAlertRulesDuration prometheus.Histogram\n32: \tTicker                              *ticker.Metrics\n33: \tEvaluationMissed                    *prometheus.CounterVec\n34: \tSimplifiedEditorRules               *prometheus.GaugeVec\n35: \n6: \n7: \t\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\"\n8: )\n9: \n164: \t\t\t\tSubsystem: Subsystem,\n165: \t\t\t\tName:      \"schedule_alert_rules_hash\",\n166: \t\t\t\tHelp:      \"A hash of the alert rules that could be considered for evaluation at the next tick.\",\n167: \t\t\t}),\n168: \t\tUpdateSchedulableAlertRulesDuration: promauto.With(r).NewHistogram(\n169: \t\t\tprometheus.HistogramOpts{\n170: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/setting/setting_unified_alerting.go\n47: `\n48: \talertingDefaultInitializationTimeout    = 30 * time.Second\n49: \tevaluatorDefaultEvaluationTimeout       = 30 * time.Second\n50: \tremoteAlertmanagerDefaultTimeout        = 30 * time.Second\n51: \tschedulerDefaultAdminConfigPollInterval = time.Minute\n52: \tschedulerDefaultExecuteAlerts           = true\n53: \tschedulerDefaultMaxAttempts             = 3\n54: \tschedulerDefaultInitialRetryDelay       = 1 * time.Second\n55: \tschedulerDefaultMaxRetryDelay           = 4 * time.Second\n56: \tschedulerDefaultRandomizationFactor     = 0.1\n57: \tschedulerDefaultLegacyMinInterval       = 1\n58: \tscreenshotsDefaultCapture               = false\n59: \tscreenshotsDefaultCaptureTimeout        = 10 * time.Second\n60: \tscreenshotsMaxCaptureTimeout            = 30 * time.Second\n61: \tscreenshotsDefaultMaxConcurrent         = 5\n62: \n345: \t// TODO load from ini file\n346: \tuaCfg.DefaultConfiguration = alertmanagerDefaultConfiguration\n347: \n348: \talerting := iniFile.Section(\"alerting\")\n349: \n350: \tuaExecuteAlerts := ua.Key(\"execute_alerts\").MustBool(schedulerDefaultExecuteAlerts)\n351: \tif uaExecuteAlerts { // unified option equals the default (true)\n352: \t\tlegacyExecuteAlerts := alerting.Key(\"execute_alerts\").MustBool(schedulerDefaultExecuteAlerts)\n353: \t\tif !legacyExecuteAlerts {\n354: \t\t\tcfg.Logger.Warn(\"falling back to legacy setting of 'execute_alerts'; please use the configuration optio...
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I found the relevant schedule files. Let me read the key files in detail.
37-assistanttool_useToolSearch
382026-06-12T21:23:19.866Zusertool_resultToolSearch
{"matches": ["mcp__sourcegraph__sg_read_file"], "query": "select:mcp__sourcegraph__sg_read_file", "total_deferred_tools": 33}
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42-assistanttool_usemcp__sourcegraph__sg_read_file
432026-06-12T21:23:23.340Zusertool_resultmcp__sourcegraph__sg_read_file
{"text":"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/schedule.go\n1: package schedule\n2: \n3: import (\n4: \t\"context\"\n5: \t\"fmt\"\n6: \t\"net/url\"\n7: \t\"time\"\n8: \n9: \t\"github.com/benbjohnson/clock\"\n10: \t\"golang.org/x/sync/errgroup\"\n11: \n12: \t\"github.com/grafana/grafana-plugin-sdk-go/data\"\n13: \n14: \t\"github.com/grafana/grafana/pkg/infra/log\"\n15: \t\"github.com/grafana/grafana/pkg/infra/tracing\"\n16: \t\"github.com/grafana/grafana/pkg/services/featuremgmt\"\n17: \t\"github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions\"\n18: \t\"github.com/grafana/grafana/pkg/services/ngalert/eval\"\n19: \t\"github.com/grafana/grafana/pkg/services/ngalert/metrics\"\n20: \tngmodels \"github.com/grafana/grafana/pkg/services/ngalert/models\"\n21: \t\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\"\n22: \t\"github.com/grafana/grafana/pkg/services/ngalert/state\"\n23: \t\"github.com/grafana/grafana/pkg/setting\"\n24: )\n25: \n26: // ScheduleService is an interface for a service that schedules the evaluation\n27: // of alert rules.\n28: type ScheduleService interface {\n29: \t// Run the scheduler until the context is canceled or the scheduler returns\n30: \t// an error. The scheduler is terminated when this function returns.\n31: \tRun(context.Context) error\n32: }\n33: \n34: // AlertsSender is an interface for a service that is responsible for sending notifications to the end-user.\n35: //\n36: //go:generate mockery --name AlertsSender --structname AlertsSenderMock --inpackage --filename alerts_sender_mock.go --with-expecter\n37: type AlertsSender interface {\n38: \tSend(ctx context.Context, key ngmodels.AlertRuleKey, alerts definitions.PostableAlerts)\n39: }\n40: \n41: // RulesStore is a store that provides alert rules for scheduling\n42: type RulesStore interface {\n43: \tGetAlertRulesKeysForScheduling(ctx context.Context) ([]ngmodels.AlertRuleKeyWithVersion, error)\n44: \tGetAlertRulesForScheduling(ctx context.Context, query *ngmodels.GetAlertRulesForSchedulingQuery) error\n45: }\n46: \n47: type RecordingWriter interface {\n48: \tWriteDatasource(ctx context.Context, dsUID string, name string, t time.Time, frames data.Frames, orgID int64, extraLabels map[string]string) error\n49: }\n50: \n51: // AlertRuleStopReasonProvider is an interface for determining the reason why an alert rule was stopped.\n52: type AlertRuleStopReasonProvider interface {\n53: \t// FindReason returns two values:\n54: \t// 1. The first value is the reason for stopping the alert rule (error type).\n55: \t// 2. The second value is an error indicating any issues that occurred while determining the stop reason.\n56: \t//\t  If this is non-nil, the scheduler uses the default reason.\n57: \tFindReason(ctx context.Context, logger log.Logger, key ngmodels.AlertRuleKeyWithGroup) (error, error)\n58: }\n59: \n60: type schedule struct {\n61: \t// base tick rate (fastest possible configured check)\n62: \tbaseInterval time.Duration\n63: \n64: \t// each rule gets its own channel and routine\n65: \tregistry ruleRegistry\n66: \n67: \tretryConfig RetryConfig\n68: \n69: \tclock clock.Clock\n70: \n71: \t// evalApplied is only used for tests: test code can set it to non-nil\n72: \t// function, and then it'll be called from the event loop whenever the\n73: \t// message from evalApplied is handled.\n74: \tevalAppliedFunc func(ngmodels.AlertRuleKey, time.Time)\n75: \n76: \t// stopApplied is only used for tests: test code can set it to non-nil\n77: \t// function, and then it'll be called from the event loop whenever the\n78: \t// message from stopApplied is handled.\n79: \tstopAppliedFunc func(ngmodels.AlertRuleKey)\n80: \n81: \truleStopReasonProvider AlertRuleStopReasonProvider\n82: \n83: \tlog log.Logger\n84: \n85: \tevaluatorFactory eval.EvaluatorFactory\n86: \n87: \truleStore RulesStore\n88: \n89: \tstateManager *state.Manager\...
44-assistanttool_usemcp__sourcegraph__sg_read_file
452026-06-12T21:23:23.981Zusertool_resultmcp__sourcegraph__sg_read_file
{"text":"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/alert_rule.go\n1: package schedule\n2: \n3: import (\n4: \t\"context\"\n5: \t\"errors\"\n6: \t\"fmt\"\n7: \t\"net/url\"\n8: \t\"time\"\n9: \n10: \t\"github.com/benbjohnson/clock\"\n11: \t\"github.com/prometheus/alertmanager/api/v2/models\"\n12: \t\"go.opentelemetry.io/otel/attribute\"\n13: \t\"go.opentelemetry.io/otel/codes\"\n14: \t\"go.opentelemetry.io/otel/trace\"\n15: \n16: \t\"github.com/grafana/grafana/pkg/infra/log\"\n17: \t\"github.com/grafana/grafana/pkg/infra/tracing\"\n18: \t\"github.com/grafana/grafana/pkg/services/datasources\"\n19: \t\"github.com/grafana/grafana/pkg/services/featuremgmt\"\n20: \t\"github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions\"\n21: \t\"github.com/grafana/grafana/pkg/services/ngalert/eval\"\n22: \t\"github.com/grafana/grafana/pkg/services/ngalert/metrics\"\n23: \tngmodels \"github.com/grafana/grafana/pkg/services/ngalert/models\"\n24: \t\"github.com/grafana/grafana/pkg/services/ngalert/state\"\n25: \t\"github.com/grafana/grafana/pkg/services/org\"\n26: \t\"github.com/grafana/grafana/pkg/services/user\"\n27: \t\"github.com/grafana/grafana/pkg/setting\"\n28: \t\"github.com/grafana/grafana/pkg/util\"\n29: )\n30: \n31: // Rule represents a single piece of work that is executed periodically by the ruler.\n32: type Rule interface {\n33: \t// Run creates the resources that will perform the rule's work, and starts it. It blocks indefinitely, until Stop is called or another signal is sent.\n34: \tRun() error\n35: \t// Stop shuts down the rule's execution with an optional reason. It has no effect if the rule has not yet been Run.\n36: \tStop(reason error)\n37: \t// Eval sends a signal to execute the work represented by the rule, exactly one time.\n38: \t// It has no effect if the rule has not yet been Run, or if the rule is Stopped.\n39: \tEval(eval *Evaluation) (bool, *Evaluation)\n40: \t// Update sends a singal to change the definition of the rule.\n41: \tUpdate(eval *Evaluation) bool\n42: \t// Type gives the type of the rule.\n43: \tType() ngmodels.RuleType\n44: \t// Status indicates the status of the evaluating rule.\n45: \tStatus() ngmodels.RuleStatus\n46: \t// Identifier returns the identifier of the rule.\n47: \tIdentifier() ngmodels.AlertRuleKeyWithGroup\n48: }\n49: \n50: type ruleFactoryFunc func(context.Context, *ngmodels.AlertRule) Rule\n51: \n52: func (f ruleFactoryFunc) new(ctx context.Context, rule *ngmodels.AlertRule) Rule {\n53: \treturn f(ctx, rule)\n54: }\n55: \n56: func newRuleFactory(\n57: \tappURL *url.URL,\n58: \tdisableGrafanaFolder bool,\n59: \tretryConfig RetryConfig,\n60: \tsender AlertsSender,\n61: \tstateManager *state.Manager,\n62: \tevalFactory eval.EvaluatorFactory,\n63: \tclock clock.Clock,\n64: \trrCfg setting.RecordingRuleSettings,\n65: \tmet *metrics.Scheduler,\n66: \tlogger log.Logger,\n67: \ttracer tracing.Tracer,\n68: \tfeatureToggles featuremgmt.FeatureToggles,\n69: \trecordingWriter RecordingWriter,\n70: \tevalAppliedHook evalAppliedFunc,\n71: \tstopAppliedHook stopAppliedFunc,\n72: ) ruleFactoryFunc {\n73: \treturn func(ctx context.Context, rule *ngmodels.AlertRule) Rule {\n74: \t\tif rule.Type() == ngmodels.RuleTypeRecording {\n75: \t\t\treturn newRecordingRule(\n76: \t\t\t\tctx,\n77: \t\t\t\trule.GetKeyWithGroup(),\n78: \t\t\t\tretryConfig,\n79: \t\t\t\tclock,\n80: \t\t\t\tevalFactory,\n81: \t\t\t\trrCfg,\n82: \t\t\t\tlogger,\n83: \t\t\t\tmet,\n84: \t\t\t\ttracer,\n85: \t\t\t\trecordingWriter,\n86: \t\t\t\tevalAppliedHook,\n87: \t\t\t\tstopAppliedHook,\n88: \t\t\t)\n89: \t\t}\n90: \t\treturn newAlertRule(\n91: \t\t\tctx,\n92: \t\t\trule.GetKeyWithGroup(),\n93: \t\t\tappURL,\n94: \t\t\tdisableGrafanaFolder,\n95: \t\t\tretryConfig,\n96: \t\t\tsender,\n97: \t\t\tstateManager,\n98: \t\t\tevalFactory,\n99: \t\t\tclock,\n100: \t\t\tmet,\n101: \t\t\tlogger,\n102: \t\t\ttracer,\n103: \t\t\tf...
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Now let me look at the ticker package which is part of the scheduler's time-tracking mechanism.
59-assistanttool_usemcp__sourcegraph__sg_nls_search
602026-06-12T21:23:33.327Zusertool_resultmcp__sourcegraph__sg_nls_search
{"text":"# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/metrics/scheduler.go\n31: \tUpdateSchedulableAlertRulesDuration prometheus.Histogram\n32: \tTicker                              *ticker.Metrics\n33: \tEvaluationMissed                    *prometheus.CounterVec\n34: \n16: \tRegisterer                          prometheus.Registerer\n17: \tBehindSeconds                       prometheus.Gauge\n18: \tEvalTotal                           *prometheus.CounterVec\n19: \n176: \t\t),\n177: \t\tTicker: ticker.NewMetrics(r, \"alerting\"),\n178: \t\tEvaluationMissed: promauto.With(r).NewCounterVec(\n179: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/schedule/ticker/metrics.go\n1: package ticker\n2: \n3: \n30: \t\t\tSubsystem: subsystem,\n31: \t\t\tName:      \"ticker_interval_seconds\",\n32: \t\t\tHelp:      \"Interval at which the ticker is meant to tick.\",\n33: \t\t}),\n34: \n24: \t\t\tSubsystem: subsystem,\n25: \t\t\tName:      \"ticker_next_tick_timestamp_seconds\",\n26: \t\t\tHelp:      \"Timestamp of the next tick in seconds before it is consumed.\",\n27: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/plugins/manager/process/process.go\n12: type Service struct {\n13: \tkeepPluginAliveTickerDuration time.Duration\n14: }\n15: \n9: \n10: const defaultKeepPluginAliveTickerDuration = time.Second\n11: \n12: \n67: func (s *Service) keepPluginAlive(p *plugins.Plugin) error {\n68: \tticker := time.NewTicker(s.keepPluginAliveTickerDuration)\n69: \n70: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/util/retryer/retryer.go\n19: \tcurrentDelay := minDelay\n20: \tvar ticker *time.Ticker\n21: \n22: \n36: \n37: \t\tif ticker == nil {\n38: \t\t\tticker = time.NewTicker(currentDelay)\n39: \t\t\tdefer ticker.Stop()\n40: \t\t} else {\n41: \n44: \n45: \t\t<-ticker.C\n46: \t}\n47: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/schedule/ticker/ticker.go\n1: package ticker\n2: \n3: \n11: \n12: // Ticker emits ticks at regular time intervals. it's like a time.Ticker, except:\n13: //   - it doesn't drop ticks for slow receivers, rather, it queues up.  so that callers are in control to instrument what's going on.\n14: \n78: \n79: // Stop stops the ticker. It does not close the C channel\n80: func (t *T) Stop() {\n81: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/build/e2eutil/grafana_server.go\n26: func (g *GrafanaServer) Wait() {\n27: \tticker := time.NewTicker(1 * time.Second)\n28: \tdefer ticker.Stop()\n29: \n30: \n37: \n38: \t\tcase <-ticker.C:\n39: \t\t\turl := fmt.Sprintf(\"http://%s:%d\", g.Host, g.Port)\n40: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/state/persister_async.go\n22: \tstore         InstanceStore\n23: \tticker        *clock.Ticker\n24: \tmetrics       *metrics.State\n25: \n32: \t\tstore:         cfg.InstanceStore,\n33: \t\tticker:        ticker,\n34: \t\tbatchSize:     cfg.StatePeriodicSaveBatchSize,\n35: \n52: \t\t\t}\n53: \t\t\ta.ticker.Stop()\n54: \t\t\ta.log.Info(\"State async worker is shut down.\")\n55: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/authz/zanzana/server/health.go\n51: \n52: \tticker := time.NewTicker(10 * time.Second)\n53: \tdefer ticker.Stop()\n54: \tfor {\n55: \n55: \t\tselect {\n56: \t\tcase <-ticker.C:\n57: \t\t\tres, err := s.Check(stream.Context(), &healthv1pb.HealthCheckRequest{})\n58: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/publicdashboards/metric/metric.go\n51: \n52: \tticker := time.NewTicker(12 * time.Hour)\n53: \tfor {\n54: \n56: \t\t\treturn ctx.Err()\n57: \t\tcase <-ticker.C:\n58: \t\t\ts.recordMetrics(ctx)\n59: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/storage/unified/resource/health.go\n75: \tcurrHealth := h.Status.Number()\n76: \tticker := time.NewTicker(5 * time.Second)\n77: \tdefer ticker.Stop()\n78: \tfor {\n79: \n79: \t\tselect {\n80: \t\tcase <-ticker.C:\n81: \t\t\t// get current health status\n82: \n\n# github.com/sg-evals/grafana--26d36ec – pkg/services/live/pushws/ws.go\...
61-assistanttool_usemcp__sourcegraph__sg_read_file
622026-06-12T21:23:33.515Zusertool_resultmcp__sourcegraph__sg_read_file
{"text":"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/ticker\n1: 100644 blob 9c8a60e385042e6990bce11ed09eb7cc66372a1c\tmetrics.go\n2: 100644 blob a52b9c4e5598362de287ff26bc1f036a9cce460c\tticker.go\n3: 100644 blob a8eb28afd772faa4bfe1b6b8a647f048613435e2\tticker_test.go\n4: "}
63-assistanttool_usemcp__sourcegraph__sg_read_file
642026-06-12T21:23:36.271Zusertool_resultmcp__sourcegraph__sg_read_file
{"text":"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/ticker/ticker.go\n1: package ticker\n2: \n3: import (\n4: \t\"fmt\"\n5: \t\"time\"\n6: \n7: \t\"github.com/benbjohnson/clock\"\n8: \n9: \t\"github.com/grafana/grafana/pkg/infra/log\"\n10: )\n11: \n12: // Ticker emits ticks at regular time intervals. it's like a time.Ticker, except:\n13: //   - it doesn't drop ticks for slow receivers, rather, it queues up.  so that callers are in control to instrument what's going on.\n14: //   - it ticks on interval marks or very shortly after. this provides a predictable load pattern\n15: //     (this shouldn't cause too much load contention issues because the next steps in the pipeline just process at their own pace)\n16: //   - the timestamps are used to mark \"last datapoint to query for\" and as such, are a configurable amount of seconds in the past\n17: type T struct {\n18: \tC        chan time.Time\n19: \tclock    clock.Clock\n20: \tlast     time.Time\n21: \tinterval time.Duration\n22: \tmetrics  *Metrics\n23: \tstopCh   chan struct{}\n24: \tlogger   log.Logger\n25: }\n26: \n27: // NewTicker returns a Ticker that ticks on interval marks (or very shortly after) starting at c.Now(), and never drops ticks. interval should not be negative or zero.\n28: func New(c clock.Clock, interval time.Duration, metric *Metrics, logger log.Logger) *T {\n29: \tif interval <= 0 {\n30: \t\tpanic(fmt.Errorf(\"non-positive interval [%v] is not allowed\", interval))\n31: \t}\n32: \tt := &T{\n33: \t\tC:        make(chan time.Time),\n34: \t\tclock:    c,\n35: \t\tlast:     getStartTick(c, interval),\n36: \t\tinterval: interval,\n37: \t\tmetrics:  metric,\n38: \t\tstopCh:   make(chan struct{}),\n39: \t\tlogger:   logger,\n40: \t}\n41: \tmetric.IntervalSeconds.Set(t.interval.Seconds()) // Seconds report fractional part as well, so it matches the format of the timestamp we report below\n42: \tgo t.run()\n43: \treturn t\n44: }\n45: \n46: func getStartTick(clk clock.Clock, interval time.Duration) time.Time {\n47: \tnano := clk.Now().UnixNano()\n48: \treturn time.Unix(0, nano-(nano%interval.Nanoseconds()))\n49: }\n50: \n51: func (t *T) run() {\n52: \tt.logger.Info(\"starting\", \"component\", \"ticker\", \"first_tick\", t.last.Add(t.interval))\n53: LOOP:\n54: \tfor {\n55: \t\tnext := t.last.Add(t.interval) // calculate the time of the next tick\n56: \t\tt.metrics.NextTickTime.Set(float64(next.UnixNano()) / 1e9)\n57: \t\tdiff := t.clock.Now().Sub(next) // calculate the difference between the current time and the next tick\n58: \t\t// if difference is not negative, then it should tick\n59: \t\tif diff >= 0 {\n60: \t\t\tselect {\n61: \t\t\tcase t.C <- next:\n62: \t\t\tcase <-t.stopCh:\n63: \t\t\t\tbreak LOOP\n64: \t\t\t}\n65: \t\t\tt.last = next\n66: \t\t\tt.metrics.LastTickTime.Set(float64(next.UnixNano()) / 1e9)\n67: \t\t\tcontinue\n68: \t\t}\n69: \t\t// tick is too young. try again when ...\n70: \t\tselect {\n71: \t\tcase <-t.clock.After(-diff): // ...it'll definitely be old enough\n72: \t\tcase <-t.stopCh:\n73: \t\t\tbreak LOOP\n74: \t\t}\n75: \t}\n76: \tt.logger.Info(\"stopped\", \"component\", \"ticker\", \"last_tick\", t.last)\n77: }\n78: \n79: // Stop stops the ticker. It does not close the C channel\n80: func (t *T) Stop() {\n81: \tselect {\n82: \tcase t.stopCh <- struct{}{}:\n83: \tdefault:\n84: \t\t// already stopped\n85: \t}\n86: }\n87: "}
65-assistanttool_usemcp__sourcegraph__sg_read_file
662026-06-12T21:23:36.782Zusertool_resultmcp__sourcegraph__sg_read_file
{"text":"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/recording_rule.go\n1: package schedule\n2: \n3: import (\n4: \tcontext \"context\"\n5: \t\"fmt\"\n6: \t\"time\"\n7: \n8: \t\"github.com/benbjohnson/clock\"\n9: \t\"github.com/grafana/grafana-plugin-sdk-go/backend\"\n10: \t\"github.com/grafana/grafana-plugin-sdk-go/data\"\n11: \t\"go.opentelemetry.io/otel/attribute\"\n12: \t\"go.opentelemetry.io/otel/codes\"\n13: \t\"go.opentelemetry.io/otel/trace\"\n14: \t\"go.uber.org/atomic\"\n15: \n16: \t\"github.com/grafana/grafana/pkg/infra/log\"\n17: \t\"github.com/grafana/grafana/pkg/infra/tracing\"\n18: \t\"github.com/grafana/grafana/pkg/services/ngalert/eval\"\n19: \t\"github.com/grafana/grafana/pkg/services/ngalert/metrics\"\n20: \tngmodels \"github.com/grafana/grafana/pkg/services/ngalert/models\"\n21: \t\"github.com/grafana/grafana/pkg/setting\"\n22: \t\"github.com/grafana/grafana/pkg/util\"\n23: )\n24: \n25: type RuleStatus struct {\n26: \tHealth              string\n27: \tLastError           error\n28: \tEvaluationTimestamp time.Time\n29: \tEvaluationDuration  time.Duration\n30: }\n31: \n32: type recordingRule struct {\n33: \tkey ngmodels.AlertRuleKeyWithGroup\n34: \n35: \tctx                 context.Context\n36: \tevalCh              chan *Evaluation\n37: \tstopFn              util.CancelCauseFunc\n38: \thealth              *atomic.String\n39: \tlastError           *atomic.Error\n40: \tevaluationTimestamp *atomic.Time\n41: \tevaluationDuration  *atomic.Duration\n42: \n43: \tretryConfig RetryConfig\n44: \n45: \tclock       clock.Clock\n46: \tevalFactory eval.EvaluatorFactory\n47: \tcfg         setting.RecordingRuleSettings\n48: \twriter      RecordingWriter\n49: \n50: \t// Event hooks that are only used in tests.\n51: \tevalAppliedHook evalAppliedFunc\n52: \tstopAppliedHook stopAppliedFunc\n53: \n54: \tlogger  log.Logger\n55: \tmetrics *metrics.Scheduler\n56: \ttracer  tracing.Tracer\n57: }\n58: \n59: func newRecordingRule(\n60: \tparent context.Context,\n61: \tkey ngmodels.AlertRuleKeyWithGroup,\n62: \tretryConfig RetryConfig,\n63: \tclock clock.Clock,\n64: \tevalFactory eval.EvaluatorFactory,\n65: \tcfg setting.RecordingRuleSettings,\n66: \tlogger log.Logger,\n67: \tmetrics *metrics.Scheduler,\n68: \ttracer tracing.Tracer,\n69: \twriter RecordingWriter,\n70: \tevalAppliedHook evalAppliedFunc,\n71: \tstopAppliedHook stopAppliedFunc,\n72: ) *recordingRule {\n73: \tctx, stop := util.WithCancelCause(ngmodels.WithRuleKey(parent, key.AlertRuleKey))\n74: \treturn &recordingRule{\n75: \t\tkey:                 key,\n76: \t\tctx:                 ctx,\n77: \t\tevalCh:              make(chan *Evaluation),\n78: \t\tstopFn:              stop,\n79: \t\thealth:              atomic.NewString(\"unknown\"),\n80: \t\tlastError:           atomic.NewError(nil),\n81: \t\tevaluationTimestamp: atomic.NewTime(time.Time{}),\n82: \t\tevaluationDuration:  atomic.NewDuration(0),\n83: \t\tclock:               clock,\n84: \t\tevalFactory:         evalFactory,\n85: \t\tcfg:                 cfg,\n86: \t\tretryConfig:         retryConfig,\n87: \t\tevalAppliedHook:     evalAppliedHook,\n88: \t\tstopAppliedHook:     stopAppliedHook,\n89: \t\tlogger:              logger.FromContext(ctx),\n90: \t\tmetrics:             metrics,\n91: \t\ttracer:              tracer,\n92: \t\twriter:              writer,\n93: \t}\n94: }\n95: \n96: func (r *recordingRule) Identifier() ngmodels.AlertRuleKeyWithGroup {\n97: \treturn r.key\n98: }\n99: \n100: func (r *recordingRule) Type() ngmodels.RuleType {\n101: \treturn ngmodels.RuleTypeRecording\n102: }\n103: \n104: func (r *recordingRule) Status() ngmodels.RuleStatus {\n105: \treturn ngmodels.RuleStatus{\n106: \t\tHealth:              r.health.Load(),\n107: \t\tLastError:           r.lastError.Load(),\n108: \t\tEvaluationTimestamp: r.evaluationTimestamp.Load(),\n109: \t\tEvaluationDuration:  r.evaluationDuration.Load(),\n110: \t}...
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Let me also check the metrics file to complete the picture.
75-assistanttool_usemcp__sourcegraph__sg_read_file
762026-06-12T21:23:42.188Zusertool_resultmcp__sourcegraph__sg_read_file
{"text":"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/metrics/scheduler.go\n1: package metrics\n2: \n3: import (\n4: \t\"github.com/prometheus/client_golang/prometheus\"\n5: \t\"github.com/prometheus/client_golang/prometheus/promauto\"\n6: \n7: \t\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\"\n8: )\n9: \n10: const (\n11: \tAlertRuleActiveLabelValue = \"active\"\n12: \tAlertRulePausedLabelValue = \"paused\"\n13: )\n14: \n15: type Scheduler struct {\n16: \tRegisterer                          prometheus.Registerer\n17: \tBehindSeconds                       prometheus.Gauge\n18: \tEvalTotal                           *prometheus.CounterVec\n19: \tEvalFailures                        *prometheus.CounterVec\n20: \tEvalDuration                        *prometheus.HistogramVec\n21: \tEvalAttemptTotal                    *prometheus.CounterVec\n22: \tEvalAttemptFailures                 *prometheus.CounterVec\n23: \tProcessDuration                     *prometheus.HistogramVec\n24: \tSendDuration                        *prometheus.HistogramVec\n25: \tSimpleNotificationRules             *prometheus.GaugeVec\n26: \tGroupRules                          *prometheus.GaugeVec\n27: \tGroups                              *prometheus.GaugeVec\n28: \tSchedulePeriodicDuration            prometheus.Histogram\n29: \tSchedulableAlertRules               prometheus.Gauge\n30: \tSchedulableAlertRulesHash           prometheus.Gauge\n31: \tUpdateSchedulableAlertRulesDuration prometheus.Histogram\n32: \tTicker                              *ticker.Metrics\n33: \tEvaluationMissed                    *prometheus.CounterVec\n34: \tSimplifiedEditorRules               *prometheus.GaugeVec\n35: \tPrometheusImportedRules             *prometheus.GaugeVec\n36: }\n37: \n38: func NewSchedulerMetrics(r prometheus.Registerer) *Scheduler {\n39: \treturn &Scheduler{\n40: \t\tRegisterer: r,\n41: \t\tBehindSeconds: promauto.With(r).NewGauge(prometheus.GaugeOpts{\n42: \t\t\tNamespace: Namespace,\n43: \t\t\tSubsystem: Subsystem,\n44: \t\t\tName:      \"scheduler_behind_seconds\",\n45: \t\t\tHelp:      \"The total number of seconds the scheduler is behind.\",\n46: \t\t}),\n47: \t\t// TODO: once rule groups support multiple rules, consider partitioning\n48: \t\t// on rule group as well as tenant, similar to loki|cortex.\n49: \t\tEvalTotal: promauto.With(r).NewCounterVec(\n50: \t\t\tprometheus.CounterOpts{\n51: \t\t\t\tNamespace: Namespace,\n52: \t\t\t\tSubsystem: Subsystem,\n53: \t\t\t\tName:      \"rule_evaluations_total\",\n54: \t\t\t\tHelp:      \"The total number of rule evaluations.\",\n55: \t\t\t},\n56: \t\t\t[]string{\"org\"},\n57: \t\t),\n58: \t\t// TODO: once rule groups support multiple rules, consider partitioning\n59: \t\t// on rule group as well as tenant, similar to loki|cortex.\n60: \t\tEvalFailures: promauto.With(r).NewCounterVec(\n61: \t\t\tprometheus.CounterOpts{\n62: \t\t\t\tNamespace: Namespace,\n63: \t\t\t\tSubsystem: Subsystem,\n64: \t\t\t\tName:      \"rule_evaluation_failures_total\",\n65: \t\t\t\tHelp:      \"The total number of rule evaluation failures.\",\n66: \t\t\t},\n67: \t\t\t[]string{\"org\"},\n68: \t\t),\n69: \t\tEvalDuration: promauto.With(r).NewHistogramVec(\n70: \t\t\tprometheus.HistogramOpts{\n71: \t\t\t\tNamespace: Namespace,\n72: \t\t\t\tSubsystem: Subsystem,\n73: \t\t\t\tName:      \"rule_evaluation_duration_seconds\",\n74: \t\t\t\tHelp:      \"The time to evaluate a rule.\",\n75: \t\t\t\tBuckets:   []float64{.01, .1, .5, 1, 5, 10, 15, 30, 60, 120, 180, 240, 300},\n76: \t\t\t},\n77: \t\t\t[]string{\"org\"},\n78: \t\t),\n79: \t\tEvalAttemptTotal: promauto.With(r).NewCounterVec(\n80: \t\t\tprometheus.CounterOpts{\n81: \t\t\t\tNamespace: Namespace,\n82: \t\t\t\tSubsystem: Subsystem,\n83: \t\t\t\tName:      \"rule_evaluation_attempts_total\",\n84: \t\t\t\tHelp:      \"The total number of rule evaluation attempts.\",\n85: \t\t\t},\n86: \...
77-assistanttool_usemcp__sourcegraph__sg_read_file
782026-06-12T21:23:42.995Zusertool_resultmcp__sourcegraph__sg_read_file
{"text":"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/ticker/metrics.go\n1: package ticker\n2: \n3: import (\n4: \t\"github.com/prometheus/client_golang/prometheus\"\n5: \t\"github.com/prometheus/client_golang/prometheus/promauto\"\n6: )\n7: \n8: type Metrics struct {\n9: \tLastTickTime    prometheus.Gauge\n10: \tNextTickTime    prometheus.Gauge\n11: \tIntervalSeconds prometheus.Gauge\n12: }\n13: \n14: func NewMetrics(reg prometheus.Registerer, subsystem string) *Metrics {\n15: \treturn &Metrics{\n16: \t\tLastTickTime: promauto.With(reg).NewGauge(prometheus.GaugeOpts{\n17: \t\t\tNamespace: \"grafana\",\n18: \t\t\tSubsystem: subsystem,\n19: \t\t\tName:      \"ticker_last_consumed_tick_timestamp_seconds\",\n20: \t\t\tHelp:      \"Timestamp of the last consumed tick in seconds.\",\n21: \t\t}),\n22: \t\tNextTickTime: promauto.With(reg).NewGauge(prometheus.GaugeOpts{\n23: \t\t\tNamespace: \"grafana\",\n24: \t\t\tSubsystem: subsystem,\n25: \t\t\tName:      \"ticker_next_tick_timestamp_seconds\",\n26: \t\t\tHelp:      \"Timestamp of the next tick in seconds before it is consumed.\",\n27: \t\t}),\n28: \t\tIntervalSeconds: promauto.With(reg).NewGauge(prometheus.GaugeOpts{\n29: \t\t\tNamespace: \"grafana\",\n30: \t\t\tSubsystem: subsystem,\n31: \t\t\tName:      \"ticker_interval_seconds\",\n32: \t\t\tHelp:      \"Interval at which the ticker is meant to tick.\",\n33: \t\t}),\n34: \t}\n35: }\n36: "}
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I now have a comprehensive understanding of the alerting evaluation scheduler and overrun detection. Let me write the answer.
107-assistanttool_useWrite
1082026-06-12T21:24:27.829Zusertool_resultWrite
File created successfully at: /workspace/answer.json (file state is current in your context — no need to Read it back)
109-assistanttext-
The answer is complete. Here's a summary of findings:

## Grafana Alert Evaluation Cycle Overrun — Key Files

The overrun detection spans these files in `pkg/services/ngalert/schedule/`:

**Scheduler tick implementation:**
- **`schedule/ticker/ticker.go`** — Custom `T` ticker that queues ticks without dropping them (unlike `time.Ticker`), giving callers full control over overrun measurement.
- **`schedule/schedule.go`** — The core scheduler:
  - `schedulePeriodic()` — main loop; reads ticks and sets `BehindSeconds` metric (`start.Sub(tick).Seconds()`)
  - `processTick()` — per-tick handler that identifies rules due to run
  - `runJobFn()` — **logs the overrun**: emits `"Tick dropped because alert rule evaluation is too slow"` (Warn) and increments `EvaluationMissed` counter when `Eval()` returns a dropped tick

**Overrun detection mechanism:**
- **`schedule/alert_rule.go`** — `alertRule.Eval()` does a **non-blocking drain** of the unbuffered `evalCh` before sending. If a previous evaluation is still pending (rule hasn't consumed the last tick yet), that pending message is captured as `droppedMsg` and returned to `runJobFn`.
- **`schedule/recording_rule.go`** — `recordingRule.Eval()` has identical logic for recording rules.

**Metrics:**
- **`metrics/scheduler.go`** — Defines `BehindSeconds`, `EvaluationMissed`, and `SchedulePeriodicDuration`; **`schedule/ticker/metrics.go`** defines per-tick timing gauges.
Tool Calls (17)
1. ToolSearch @ -

Input

{
  "query": "select:mcp__sourcegraph__sg_keyword_search,mcp__sourcegraph__sg_nls_search",
  "max_results": 5
}

Output

{
  "matches": [
    "mcp__sourcegraph__sg_keyword_search",
    "mcp__sourcegraph__sg_nls_search"
  ],
  "query": "select:mcp__sourcegraph__sg_keyword_search,mcp__sourcegraph__sg_nls_search",
  "total_deferred_tools": 33
}
2. mcp__sourcegraph__sg_keyword_search @ -

Input

{
  "query": "alert evaluation took longer than expected repo:^github.com/sg-evals/grafana--26d36ec$"
}

Output

{
  "content": "{\"text\":\"# github.com/sg-evals/grafana--26d36ec – packages/grafana-alerting/src/grafana/api/rules/v0alpha1/rules.api.gen.ts\\n502:   fieldValidation?: string;\\n503:   alertRule: AlertRule;\\n504: };\\n505: export type UpdateAlertRuleStatusApiResponse = /** status 200 OK */ AlertRule | /** status 201 Created */ AlertRule;\\n506: export type UpdateAlertRuleStatusApiArg = {\\n507:   /** name of the AlertRule */\\n508:   name: string;\\n509: \\n448:   fieldValidation?: string;\\n449:   alertRule: AlertRule;\\n450: };\\n451: export type DeleteAlertRuleApiResponse = /** status 200 OK */ Status | /** status 202 Accepted */ Status;\\n452: export type DeleteAlertRuleApiArg = {\\n453:   /** name of the AlertRule */\\n454:   name: string;\\n455: \\n376:   fieldValidation?: string;\\n377:   alertRule: AlertRule;\\n378: };\\n379: export type DeletecollectionAlertRuleApiResponse = /** status 200 OK */ Status;\\n380: export type DeletecollectionAlertRuleApiArg = {\\n381:   /** If 'true', then the output is pretty printed. Defaults to 'false' unless the user-agent indicates a browser or command-line HTTP tool (curl and wget). */\\n382: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/tests/apis/openapi_snapshots/rules.alerting.grafana.app-v0alpha1.json\\n2280:     \\\"schemas\\\": {\\n2281:       \\\"com.github.grafana.grafana.apps.alerting.rules.pkg.apis.alerting.v0alpha1.AlertRule\\\": {\\n2282:         \\\"type\\\": \\\"object\\\",\\n2283: \\n2369:       },\\n2370:       \\\"com.github.grafana.grafana.apps.alerting.rules.pkg.apis.alerting.v0alpha1.AlertRuleList\\\": {\\n2371:         \\\"type\\\": \\\"object\\\",\\n2372: \\n2469:       },\\n2470:       \\\"com.github.grafana.grafana.apps.alerting.rules.pkg.apis.alerting.v0alpha1.AlertRuleSpec\\\": {\\n2471:         \\\"type\\\": \\\"object\\\",\\n2472: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/tests/apis/openapi_snapshots/notifications.alerting.grafana.app-v0alpha1.json\\n5259:         \\\"required\\\": [\\n5260:           \\\"lastEvaluation\\\",\\n5261:           \\\"state\\\"\\n5262: \\n5065:         \\\"required\\\": [\\n5066:           \\\"lastEvaluation\\\",\\n5067:           \\\"state\\\"\\n5068: \\n4642:         \\\"required\\\": [\\n4643:           \\\"lastEvaluation\\\",\\n4644:           \\\"state\\\"\\n4645: \\n\\n# github.com/sg-evals/grafana--26d36ec – packages/grafana-alerting/src/grafana/api/notifications/v0alpha1/notifications.api.gen.ts\\n1760:   };\\n1761:   /** lastEvaluation is the ResourceVersion last evaluated */\\n1762:   lastEvaluation: string;\\n1763:   /** state describes the state of the lastEvaluation.\\n1764:     It is limited to three possible states for machine evaluation. */\\n1765:   state: 'success' | 'in_progress' | 'failed';\\n1766: \\n1583:   };\\n1584:   /** lastEvaluation is the ResourceVersion last evaluated */\\n1585:   lastEvaluation: string;\\n1586:   /** state describes the state of the lastEvaluation.\\n1587:     It is limited to three possible states for machine evaluation. */\\n1588:   state: 'success' | 'in_progress' | 'failed';\\n1589: \\n1821:   };\\n1822:   /** lastEvaluation is the ResourceVersion last evaluated */\\n1823:   lastEvaluation: string;\\n1824:   /** state describes the state of the lastEvaluation.\\n1825:     It is limited to three possible states for machine evaluation. */\\n1826:   state: 'success' | 'in_progress' | 'failed';\\n1827: \\n\\n# github.com/sg-evals/grafana--26d36ec – public/locales/en-US/grafana.json\\n533:     },\\n534:     \\\"alert-rules-drawer\\\": {\\n535:       \\\"text-loading-alert-rules\\\": \\\"Loading alert rules\\\",\\n536:       \\\"title-alert-rules\\\": \\\"Alert rules\\\"\\n537:     },\\n538:     \\\"alert-rules-drawer-content\\\": {\\n539:       \\\"text-loading-alert-rules\\\": \\\"Loading alert rules\\\"\\n540:     },\\n541:     \\\"alert-state-filter\\\": {\\n542:       \\\"active-the-alert-is-firing\\\": \\\"Active: The alert notification has been handled. The
...
3. mcp__sourcegraph__sg_keyword_search @ -

Input

{
  "query": "evaluation cycle overrun scheduler tick repo:^github.com/sg-evals/grafana--26d36ec$ file:.*\\.go$"
}

Output

{
  "content": "{\"text\":\"No results.\\n\\nNo results found.\"}",
  "structuredContent": {
    "text": "No results.\n\nNo results found."
  }
}
4. mcp__sourcegraph__sg_keyword_search @ -

Input

{
  "query": "longer than expected repo:^github.com/sg-evals/grafana--26d36ec$ file:.*\\.go$"
}

Output

{
  "content": "{\"text\":\"# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/writer/prom.go\\n126: \\n127: \\t// ExpectedErrors are user-level write errors like trying to write an invalid series.\\n128: \\tExpectedErrors = []string{\\n129: \\t\\tMimirDistributorMaxWriteMessageSizeError,\\n130: \\n74: \\t// https://github.com/grafana/mimir/blob/1ff367ef58987cd1941de03a8d6923fde82dfdd3/pkg/distributor/validate.go#L491-L491\\n75: \\tMimirMetricMetadataMetricNameTooLongError = \\\"err-mimir-metric-name-too-long\\\"\\n76: \\tMimirMetricMetadataMissingMetricNameError = \\\"err-mimir-metadata-missing-metric-name\\\"\\n77: \\tMimirMetricMetadataUnitTooLongError       = \\\"err-mimir-unit-too-long\\\"\\n78: \\n79: \\n111: var (\\n112: \\t// Unexpected, 500-like write errors.\\n113: \\tErrUnexpectedWriteFailure = errors.New(\\\"failed to write time series\\\")\\n114: \\t// Expected, user-level write errors like trying to write an invalid series.\\n115: \\tErrRejectedWrite          = errors.New(\\\"series was rejected\\\")\\n116: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/api/util.go\\n79: \\tdefault:\\n80: \\t\\treturn nil, unexpectedDatasourceTypeError(ds.Type, expectedType.String())\\n81: \\t}\\n82: \\n69: \\t}\\n70: \\tswitch expectedType {\\n71: \\tcase apimodels.AlertmanagerBackend:\\n72: \\n203: \\t\\tif !strings.Contains(contentType, \\\"yaml\\\") {\\n204: \\t\\t\\treturn nil, fmt.Errorf(\\\"unexpected content type from upstream. expected YAML, got %v\\\", contentType)\\n205: \\t\\t}\\n206: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/expr/sql_command.go\\n268: //   - No numeric field is found.\\n269: //   - More than one numeric field exists.\\n270: //   - Any label set appears more than once.\\n271: func extractNumberSetFromSQLForAlerting(frame *data.Frame) ([]mathexp.Number, error) {\\n272: \\n446: \\n447: \\t// If meta.type is not supported, but there are labels or more than 1 frame error\\n448: \\tif len(dataFrames) > 1 {\\n449: \\t\\tresult.Error = sql.MakeInputConvertError(fmt.Errorf(\\\"can not convert because the response %s and has more than one dataframe that can not be automatically mapped to a single table\\\", frameTypeIssue), refID, forRefIDs, dsType)\\n450: \\t\\treturn result, false\\n451: \\n90: \\tif cfg.SQLExpressionQueryLengthLimit > 0 && len(expression) > int(cfg.SQLExpressionQueryLengthLimit) {\\n91: \\t\\treturn nil, sql.MakeQueryTooLongError(rn.RefID, cfg.SQLExpressionQueryLengthLimit)\\n92: \\t}\\n93: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/cleanup/cleanup.go\\n268: \\tcmd := tempuser.ExpireTempUsersCommand{\\n269: \\t\\tOlderThan: time.Now().Add(-maxInviteLifetime),\\n270: \\t}\\n271: \\n283: \\tcmd := tempuser.ExpireTempUsersCommand{\\n284: \\t\\tOlderThan: time.Now().Add(-maxVerificationLifetime),\\n285: \\t}\\n286: \\n391: \\tmaxQueryHistoryLifetime := time.Hour * 24 * 14\\n392: \\tolderThan := time.Now().Add(-maxQueryHistoryLifetime).Unix()\\n393: \\trowsCount, err := srv.QueryHistoryService.DeleteStaleQueriesInQueryHistory(ctx, olderThan)\\n394: \\tif err != nil {\\n395: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/registry/apis/dashboardsnapshot/register.go\\n274: \\t\\t\\t\\t\\tSummary:     \\\"an example at the root level\\\",\\n275: \\t\\t\\t\\t\\tDescription: \\\"longer description here?\\\",\\n276: \\t\\t\\t\\t\\tDelete: &spec3.Operation{\\n277: \\n182: \\t\\t\\t\\t\\t\\t\\tSummary:     \\\"Full dashboard\\\",\\n183: \\t\\t\\t\\t\\t\\t\\tDescription: \\\"longer description here?\\\",\\n184: \\t\\t\\t\\t\\t\\t\\tParameters: []*spec3.Parameter{\\n185: \\n245: \\t\\t\\t\\t\\tif err != nil {\\n246: \\t\\t\\t\\t\\t\\twrap.JsonApiErr(http.StatusBadRequest, \\\"expected namespace\\\", nil)\\n247: \\t\\t\\t\\t\\t\\treturn\\n248: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/storage/unified/sql/backend.go\\n533: \\tif rows == 1 {\\n534: \\t\\treturn nil // expected one result\\n535: \\t}\\n536: \\n822: \\t// We are assuming tha
...
5. mcp__sourcegraph__sg_keyword_search @ -

Input

{
  "query": "evaluation took repo:^github.com/sg-evals/grafana--26d36ec$ file:.*\\.go$"
}

Output

{
  "content": "{\"text\":\"No results.\\n\\nNo results found.\"}",
  "structuredContent": {
    "text": "No results.\n\nNo results found."
  }
}
6. mcp__sourcegraph__sg_keyword_search @ -

Input

{
  "query": "ticker eval evaluation schedule ngalert repo:^github.com/sg-evals/grafana--26d36ec$ file:.*\\.go$"
}

Output

{
  "content": "{\"text\":\"# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/metrics/scheduler.go\\n6: \\n7: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\\\"\\n8: )\\n9: \\n181: \\t\\t\\t\\tSubsystem: Subsystem,\\n182: \\t\\t\\t\\tName:      \\\"schedule_rule_evaluations_missed_total\\\",\\n183: \\t\\t\\t\\tHelp:      \\\"The total number of rule evaluations missed due to a slow rule evaluation.\\\",\\n184: \\t\\t\\t},\\n185: \\n14: \\n15: type Scheduler struct {\\n16: \\tRegisterer                          prometheus.Registerer\\n17: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/schedule/schedule.go\\n16: \\t\\\"github.com/grafana/grafana/pkg/services/featuremgmt\\\"\\n17: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions\\\"\\n18: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/eval\\\"\\n19: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/metrics\\\"\\n20: \\tngmodels \\\"github.com/grafana/grafana/pkg/services/ngalert/models\\\"\\n21: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\\\"\\n22: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/state\\\"\\n23: \\t\\\"github.com/grafana/grafana/pkg/setting\\\"\\n24: \\n245: \\n246: func (sch *schedule) schedulePeriodic(ctx context.Context, t *ticker.T) error {\\n247: \\tdispatcherGroup, ctx := errgroup.WithContext(ctx)\\n248: \\n25: \\n26: // ScheduleService is an interface for a service that schedules the evaluation\\n27: // of alert rules.\\n28: type ScheduleService interface {\\n29: \\t// Run the scheduler until the context is canceled or the scheduler returns\\n30: \\t// an error. The scheduler is terminated when this function returns.\\n31: \\tRun(context.Context) error\\n32: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/ngalert.go\\n342: \\t\\tTracer:               ng.tracer,\\n343: \\t\\tLog:                  log.New(\\\"ngalert.scheduler\\\"),\\n344: \\t\\tRecordingWriter:      ng.RecordingWriter,\\n345: \\n33: \\t\\\"github.com/grafana/grafana/pkg/services/folder\\\"\\n34: \\tac \\\"github.com/grafana/grafana/pkg/services/ngalert/accesscontrol\\\"\\n35: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/api\\\"\\n36: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions\\\"\\n37: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/eval\\\"\\n38: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/image\\\"\\n39: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/metrics\\\"\\n40: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/models\\\"\\n41: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/notifier\\\"\\n42: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/notifier/legacy_storage\\\"\\n43: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/provisioning\\\"\\n44: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/remote\\\"\\n45: \\tremoteClient \\\"github.com/grafana/grafana/pkg/services/ngalert/remote/client\\\"\\n46: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/schedule\\\"\\n47: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/sender\\\"\\n48: ... [chunk truncated]\\n334: \\t\\tDisableGrafanaFolder: ng.Cfg.UnifiedAlerting.ReservedLabels.IsReservedLabelDisabled(models.FolderTitleLabel),\\n335: \\t\\tJitterEvaluations:    schedule.JitterStrategyFrom(ng.Cfg.UnifiedAlerting, ng.FeatureToggles),\\n336: \\t\\tAppURL:               appUrl,\\n337: \\t\\tEvaluatorFactory:     evalFactory,\\n338: \\t\\tRuleStore:            ng.store,\\n339: \\n\"}",
  "structuredContent": {
    "text": "# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/metrics/scheduler.go\n6: \n7: \t\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\"\n8: )\n9: \n181: \t\t\t\tSubsystem: Subsystem,\n182: \t\t\t\tName:      \"schedule_rule_evaluations_missed_total\",\n183: \t\t\t\tHelp:      \"The total number of rule evaluations missed due to a slow
...
7. mcp__sourcegraph__sg_nls_search @ -

Input

{
  "query": "alert evaluation scheduler tick overrun time budget repo:^github.com/sg-evals/grafana--26d36ec$ file:.*\\.go$"
}

Output

{
  "content": "{\"text\":\"# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/schedule/schedule.go\\n437: \\t\\tif dropped != nil {\\n438: \\t\\t\\tsch.log.Warn(\\\"Tick dropped because alert rule evaluation is too slow\\\", append(key.LogContext(), \\\"time\\\", next.scheduledAt, \\\"droppedTick\\\", dropped.scheduledAt)...)\\n439: \\t\\t\\torgID := fmt.Sprint(key.OrgID)\\n440: \\t\\t\\tsch.metrics.EvaluationMissed.WithLabelValues(orgID, next.rule.Title).Inc()\\n441: \\t\\t}\\n442: \\n274: // TODO refactor to accept a callback for tests that will be called with things that are returned currently, and return nothing.\\n275: // Returns a slice of rules that were scheduled for evaluation, map of stopped rules, and a slice of updated rules\\n276: func (sch *schedule) processTick(ctx context.Context, dispatcherGroup *errgroup.Group, tick time.Time) ([]readyToRunItem, map[ngmodels.AlertRuleKey]struct{}, []ngmodels.AlertRuleKeyWithVersion) {\\n277: \\ttickNum := tick.Unix() / int64(sch.baseInterval.Seconds())\\n278: \\n279: \\n95: \\n96: \\tmetrics *metrics.Scheduler\\n97: \\n98: \\talertsSender    AlertsSender\\n99: \\tminRuleInterval time.Duration\\n100: \\n101: \\t// schedulableAlertRules contains the alert rules that are considered for\\n102: \\t// evaluation in the current tick. The evaluation of an alert rule in the\\n103: \\t// current tick depends on its evaluation interval and when it was\\n104: \\t// last evaluated.\\n105: \\tschedulableAlertRules alertRulesRegistry\\n106: \\n107: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/metrics/scheduler.go\\n27: \\tGroups                              *prometheus.GaugeVec\\n28: \\tSchedulePeriodicDuration            prometheus.Histogram\\n29: \\tSchedulableAlertRules               prometheus.Gauge\\n30: \\tSchedulableAlertRulesHash           prometheus.Gauge\\n31: \\tUpdateSchedulableAlertRulesDuration prometheus.Histogram\\n32: \\tTicker                              *ticker.Metrics\\n33: \\tEvaluationMissed                    *prometheus.CounterVec\\n34: \\tSimplifiedEditorRules               *prometheus.GaugeVec\\n35: \\n6: \\n7: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\\\"\\n8: )\\n9: \\n164: \\t\\t\\t\\tSubsystem: Subsystem,\\n165: \\t\\t\\t\\tName:      \\\"schedule_alert_rules_hash\\\",\\n166: \\t\\t\\t\\tHelp:      \\\"A hash of the alert rules that could be considered for evaluation at the next tick.\\\",\\n167: \\t\\t\\t}),\\n168: \\t\\tUpdateSchedulableAlertRulesDuration: promauto.With(r).NewHistogram(\\n169: \\t\\t\\tprometheus.HistogramOpts{\\n170: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/setting/setting_unified_alerting.go\\n47: `\\n48: \\talertingDefaultInitializationTimeout    = 30 * time.Second\\n49: \\tevaluatorDefaultEvaluationTimeout       = 30 * time.Second\\n50: \\tremoteAlertmanagerDefaultTimeout        = 30 * time.Second\\n51: \\tschedulerDefaultAdminConfigPollInterval = time.Minute\\n52: \\tschedulerDefaultExecuteAlerts           = true\\n53: \\tschedulerDefaultMaxAttempts             = 3\\n54: \\tschedulerDefaultInitialRetryDelay       = 1 * time.Second\\n55: \\tschedulerDefaultMaxRetryDelay           = 4 * time.Second\\n56: \\tschedulerDefaultRandomizationFactor     = 0.1\\n57: \\tschedulerDefaultLegacyMinInterval       = 1\\n58: \\tscreenshotsDefaultCapture               = false\\n59: \\tscreenshotsDefaultCaptureTimeout        = 10 * time.Second\\n60: \\tscreenshotsMaxCaptureTimeout            = 30 * time.Second\\n61: \\tscreenshotsDefaultMaxConcurrent         = 5\\n62: \\n345: \\t// TODO load from ini file\\n346: \\tuaCfg.DefaultConfiguration = alertmanagerDefaultConfiguration\\n347: \\n348: \\talerting := iniFile.Section(\\\"alerting\\\")\\n349: \\n350: \\tuaExecuteAlerts := ua.Key(\\\"execute_alerts\\\").MustBool(schedulerDefaultExecuteAlerts)\\n351: \\tif uaExecuteAlerts { // unified option equals the default (true)\\n352: \\t\\tlegacyExecuteAlerts := alerting.Key(\\\"execute_aler
...
8. ToolSearch @ -

Input

{
  "query": "select:mcp__sourcegraph__sg_read_file",
  "max_results": 2
}

Output

{
  "matches": [
    "mcp__sourcegraph__sg_read_file"
  ],
  "query": "select:mcp__sourcegraph__sg_read_file",
  "total_deferred_tools": 33
}
9. mcp__sourcegraph__sg_read_file @ -

Input

{
  "repo": "github.com/sg-evals/grafana--26d36ec",
  "path": "pkg/services/ngalert/schedule/schedule.go"
}

Output

{
  "content": "{\"text\":\"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/schedule.go\\n1: package schedule\\n2: \\n3: import (\\n4: \\t\\\"context\\\"\\n5: \\t\\\"fmt\\\"\\n6: \\t\\\"net/url\\\"\\n7: \\t\\\"time\\\"\\n8: \\n9: \\t\\\"github.com/benbjohnson/clock\\\"\\n10: \\t\\\"golang.org/x/sync/errgroup\\\"\\n11: \\n12: \\t\\\"github.com/grafana/grafana-plugin-sdk-go/data\\\"\\n13: \\n14: \\t\\\"github.com/grafana/grafana/pkg/infra/log\\\"\\n15: \\t\\\"github.com/grafana/grafana/pkg/infra/tracing\\\"\\n16: \\t\\\"github.com/grafana/grafana/pkg/services/featuremgmt\\\"\\n17: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions\\\"\\n18: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/eval\\\"\\n19: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/metrics\\\"\\n20: \\tngmodels \\\"github.com/grafana/grafana/pkg/services/ngalert/models\\\"\\n21: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\\\"\\n22: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/state\\\"\\n23: \\t\\\"github.com/grafana/grafana/pkg/setting\\\"\\n24: )\\n25: \\n26: // ScheduleService is an interface for a service that schedules the evaluation\\n27: // of alert rules.\\n28: type ScheduleService interface {\\n29: \\t// Run the scheduler until the context is canceled or the scheduler returns\\n30: \\t// an error. The scheduler is terminated when this function returns.\\n31: \\tRun(context.Context) error\\n32: }\\n33: \\n34: // AlertsSender is an interface for a service that is responsible for sending notifications to the end-user.\\n35: //\\n36: //go:generate mockery --name AlertsSender --structname AlertsSenderMock --inpackage --filename alerts_sender_mock.go --with-expecter\\n37: type AlertsSender interface {\\n38: \\tSend(ctx context.Context, key ngmodels.AlertRuleKey, alerts definitions.PostableAlerts)\\n39: }\\n40: \\n41: // RulesStore is a store that provides alert rules for scheduling\\n42: type RulesStore interface {\\n43: \\tGetAlertRulesKeysForScheduling(ctx context.Context) ([]ngmodels.AlertRuleKeyWithVersion, error)\\n44: \\tGetAlertRulesForScheduling(ctx context.Context, query *ngmodels.GetAlertRulesForSchedulingQuery) error\\n45: }\\n46: \\n47: type RecordingWriter interface {\\n48: \\tWriteDatasource(ctx context.Context, dsUID string, name string, t time.Time, frames data.Frames, orgID int64, extraLabels map[string]string) error\\n49: }\\n50: \\n51: // AlertRuleStopReasonProvider is an interface for determining the reason why an alert rule was stopped.\\n52: type AlertRuleStopReasonProvider interface {\\n53: \\t// FindReason returns two values:\\n54: \\t// 1. The first value is the reason for stopping the alert rule (error type).\\n55: \\t// 2. The second value is an error indicating any issues that occurred while determining the stop reason.\\n56: \\t//\\t  If this is non-nil, the scheduler uses the default reason.\\n57: \\tFindReason(ctx context.Context, logger log.Logger, key ngmodels.AlertRuleKeyWithGroup) (error, error)\\n58: }\\n59: \\n60: type schedule struct {\\n61: \\t// base tick rate (fastest possible configured check)\\n62: \\tbaseInterval time.Duration\\n63: \\n64: \\t// each rule gets its own channel and routine\\n65: \\tregistry ruleRegistry\\n66: \\n67: \\tretryConfig RetryConfig\\n68: \\n69: \\tclock clock.Clock\\n70: \\n71: \\t// evalApplied is only used for tests: test code can set it to non-nil\\n72: \\t// function, and then it'll be called from the event loop whenever the\\n73: \\t// message from evalApplied is handled.\\n74: \\tevalAppliedFunc func(ngmodels.AlertRuleKey, time.Time)\\n75: \\n76: \\t// stopApplied is only used for tests: test code can set it to non-nil\\n77: \\t// function, and then it'll be called from the event loop whenever the\\n78: \\t// message from stopApplied is handled.\\n79: \\tstopAppliedFunc func(ngmodels.AlertRuleKey)\\n80: \\n
...
10. mcp__sourcegraph__sg_read_file @ -

Input

{
  "repo": "github.com/sg-evals/grafana--26d36ec",
  "path": "pkg/services/ngalert/schedule/alert_rule.go"
}

Output

{
  "content": "{\"text\":\"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/alert_rule.go\\n1: package schedule\\n2: \\n3: import (\\n4: \\t\\\"context\\\"\\n5: \\t\\\"errors\\\"\\n6: \\t\\\"fmt\\\"\\n7: \\t\\\"net/url\\\"\\n8: \\t\\\"time\\\"\\n9: \\n10: \\t\\\"github.com/benbjohnson/clock\\\"\\n11: \\t\\\"github.com/prometheus/alertmanager/api/v2/models\\\"\\n12: \\t\\\"go.opentelemetry.io/otel/attribute\\\"\\n13: \\t\\\"go.opentelemetry.io/otel/codes\\\"\\n14: \\t\\\"go.opentelemetry.io/otel/trace\\\"\\n15: \\n16: \\t\\\"github.com/grafana/grafana/pkg/infra/log\\\"\\n17: \\t\\\"github.com/grafana/grafana/pkg/infra/tracing\\\"\\n18: \\t\\\"github.com/grafana/grafana/pkg/services/datasources\\\"\\n19: \\t\\\"github.com/grafana/grafana/pkg/services/featuremgmt\\\"\\n20: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions\\\"\\n21: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/eval\\\"\\n22: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/metrics\\\"\\n23: \\tngmodels \\\"github.com/grafana/grafana/pkg/services/ngalert/models\\\"\\n24: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/state\\\"\\n25: \\t\\\"github.com/grafana/grafana/pkg/services/org\\\"\\n26: \\t\\\"github.com/grafana/grafana/pkg/services/user\\\"\\n27: \\t\\\"github.com/grafana/grafana/pkg/setting\\\"\\n28: \\t\\\"github.com/grafana/grafana/pkg/util\\\"\\n29: )\\n30: \\n31: // Rule represents a single piece of work that is executed periodically by the ruler.\\n32: type Rule interface {\\n33: \\t// Run creates the resources that will perform the rule's work, and starts it. It blocks indefinitely, until Stop is called or another signal is sent.\\n34: \\tRun() error\\n35: \\t// Stop shuts down the rule's execution with an optional reason. It has no effect if the rule has not yet been Run.\\n36: \\tStop(reason error)\\n37: \\t// Eval sends a signal to execute the work represented by the rule, exactly one time.\\n38: \\t// It has no effect if the rule has not yet been Run, or if the rule is Stopped.\\n39: \\tEval(eval *Evaluation) (bool, *Evaluation)\\n40: \\t// Update sends a singal to change the definition of the rule.\\n41: \\tUpdate(eval *Evaluation) bool\\n42: \\t// Type gives the type of the rule.\\n43: \\tType() ngmodels.RuleType\\n44: \\t// Status indicates the status of the evaluating rule.\\n45: \\tStatus() ngmodels.RuleStatus\\n46: \\t// Identifier returns the identifier of the rule.\\n47: \\tIdentifier() ngmodels.AlertRuleKeyWithGroup\\n48: }\\n49: \\n50: type ruleFactoryFunc func(context.Context, *ngmodels.AlertRule) Rule\\n51: \\n52: func (f ruleFactoryFunc) new(ctx context.Context, rule *ngmodels.AlertRule) Rule {\\n53: \\treturn f(ctx, rule)\\n54: }\\n55: \\n56: func newRuleFactory(\\n57: \\tappURL *url.URL,\\n58: \\tdisableGrafanaFolder bool,\\n59: \\tretryConfig RetryConfig,\\n60: \\tsender AlertsSender,\\n61: \\tstateManager *state.Manager,\\n62: \\tevalFactory eval.EvaluatorFactory,\\n63: \\tclock clock.Clock,\\n64: \\trrCfg setting.RecordingRuleSettings,\\n65: \\tmet *metrics.Scheduler,\\n66: \\tlogger log.Logger,\\n67: \\ttracer tracing.Tracer,\\n68: \\tfeatureToggles featuremgmt.FeatureToggles,\\n69: \\trecordingWriter RecordingWriter,\\n70: \\tevalAppliedHook evalAppliedFunc,\\n71: \\tstopAppliedHook stopAppliedFunc,\\n72: ) ruleFactoryFunc {\\n73: \\treturn func(ctx context.Context, rule *ngmodels.AlertRule) Rule {\\n74: \\t\\tif rule.Type() == ngmodels.RuleTypeRecording {\\n75: \\t\\t\\treturn newRecordingRule(\\n76: \\t\\t\\t\\tctx,\\n77: \\t\\t\\t\\trule.GetKeyWithGroup(),\\n78: \\t\\t\\t\\tretryConfig,\\n79: \\t\\t\\t\\tclock,\\n80: \\t\\t\\t\\tevalFactory,\\n81: \\t\\t\\t\\trrCfg,\\n82: \\t\\t\\t\\tlogger,\\n83: \\t\\t\\t\\tmet,\\n84: \\t\\t\\t\\ttracer,\\n85: \\t\\t\\t\\trecordingWriter,\\n86: \\t\\t\\t\\tevalAppliedHook,\\n87: \\t\\t\\t\\tstopAppliedHook,\\n88: \\t\\t\\t)\\n89: \\t\\t}\
...
11. mcp__sourcegraph__sg_nls_search @ -

Input

{
  "query": "ticker BehindSeconds overrun repo:^github.com/sg-evals/grafana--26d36ec$ file:.*\\.go$"
}

Output

{
  "content": "{\"text\":\"# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/metrics/scheduler.go\\n31: \\tUpdateSchedulableAlertRulesDuration prometheus.Histogram\\n32: \\tTicker                              *ticker.Metrics\\n33: \\tEvaluationMissed                    *prometheus.CounterVec\\n34: \\n16: \\tRegisterer                          prometheus.Registerer\\n17: \\tBehindSeconds                       prometheus.Gauge\\n18: \\tEvalTotal                           *prometheus.CounterVec\\n19: \\n176: \\t\\t),\\n177: \\t\\tTicker: ticker.NewMetrics(r, \\\"alerting\\\"),\\n178: \\t\\tEvaluationMissed: promauto.With(r).NewCounterVec(\\n179: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/schedule/ticker/metrics.go\\n1: package ticker\\n2: \\n3: \\n30: \\t\\t\\tSubsystem: subsystem,\\n31: \\t\\t\\tName:      \\\"ticker_interval_seconds\\\",\\n32: \\t\\t\\tHelp:      \\\"Interval at which the ticker is meant to tick.\\\",\\n33: \\t\\t}),\\n34: \\n24: \\t\\t\\tSubsystem: subsystem,\\n25: \\t\\t\\tName:      \\\"ticker_next_tick_timestamp_seconds\\\",\\n26: \\t\\t\\tHelp:      \\\"Timestamp of the next tick in seconds before it is consumed.\\\",\\n27: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/plugins/manager/process/process.go\\n12: type Service struct {\\n13: \\tkeepPluginAliveTickerDuration time.Duration\\n14: }\\n15: \\n9: \\n10: const defaultKeepPluginAliveTickerDuration = time.Second\\n11: \\n12: \\n67: func (s *Service) keepPluginAlive(p *plugins.Plugin) error {\\n68: \\tticker := time.NewTicker(s.keepPluginAliveTickerDuration)\\n69: \\n70: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/util/retryer/retryer.go\\n19: \\tcurrentDelay := minDelay\\n20: \\tvar ticker *time.Ticker\\n21: \\n22: \\n36: \\n37: \\t\\tif ticker == nil {\\n38: \\t\\t\\tticker = time.NewTicker(currentDelay)\\n39: \\t\\t\\tdefer ticker.Stop()\\n40: \\t\\t} else {\\n41: \\n44: \\n45: \\t\\t<-ticker.C\\n46: \\t}\\n47: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/schedule/ticker/ticker.go\\n1: package ticker\\n2: \\n3: \\n11: \\n12: // Ticker emits ticks at regular time intervals. it's like a time.Ticker, except:\\n13: //   - it doesn't drop ticks for slow receivers, rather, it queues up.  so that callers are in control to instrument what's going on.\\n14: \\n78: \\n79: // Stop stops the ticker. It does not close the C channel\\n80: func (t *T) Stop() {\\n81: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/build/e2eutil/grafana_server.go\\n26: func (g *GrafanaServer) Wait() {\\n27: \\tticker := time.NewTicker(1 * time.Second)\\n28: \\tdefer ticker.Stop()\\n29: \\n30: \\n37: \\n38: \\t\\tcase <-ticker.C:\\n39: \\t\\t\\turl := fmt.Sprintf(\\\"http://%s:%d\\\", g.Host, g.Port)\\n40: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/ngalert/state/persister_async.go\\n22: \\tstore         InstanceStore\\n23: \\tticker        *clock.Ticker\\n24: \\tmetrics       *metrics.State\\n25: \\n32: \\t\\tstore:         cfg.InstanceStore,\\n33: \\t\\tticker:        ticker,\\n34: \\t\\tbatchSize:     cfg.StatePeriodicSaveBatchSize,\\n35: \\n52: \\t\\t\\t}\\n53: \\t\\t\\ta.ticker.Stop()\\n54: \\t\\t\\ta.log.Info(\\\"State async worker is shut down.\\\")\\n55: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/authz/zanzana/server/health.go\\n51: \\n52: \\tticker := time.NewTicker(10 * time.Second)\\n53: \\tdefer ticker.Stop()\\n54: \\tfor {\\n55: \\n55: \\t\\tselect {\\n56: \\t\\tcase <-ticker.C:\\n57: \\t\\t\\tres, err := s.Check(stream.Context(), &healthv1pb.HealthCheckRequest{})\\n58: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/services/publicdashboards/metric/metric.go\\n51: \\n52: \\tticker := time.NewTicker(12 * time.Hour)\\n53: \\tfor {\\n54: \\n56: \\t\\t\\treturn ctx.Err()\\n57: \\t\\tcase <-ticker.C:\\n58: \\t\\t\\ts.recordMetrics(ctx)\\n59: \\n\\n# github.com/sg-evals/grafana--26d36ec – pkg/storage/unified/resource/health.go\\n75: \\tcurrHealth := h.Status.Number()\
...
12. mcp__sourcegraph__sg_read_file @ -

Input

{
  "repo": "github.com/sg-evals/grafana--26d36ec",
  "path": "pkg/services/ngalert/schedule/ticker"
}

Output

{
  "content": "{\"text\":\"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/ticker\\n1: 100644 blob 9c8a60e385042e6990bce11ed09eb7cc66372a1c\\tmetrics.go\\n2: 100644 blob a52b9c4e5598362de287ff26bc1f036a9cce460c\\tticker.go\\n3: 100644 blob a8eb28afd772faa4bfe1b6b8a647f048613435e2\\tticker_test.go\\n4: \"}",
  "structuredContent": {
    "text": "URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/ticker\n1: 100644 blob 9c8a60e385042e6990bce11ed09eb7cc66372a1c\tmetrics.go\n2: 100644 blob a52b9c4e5598362de287ff26bc1f036a9cce460c\tticker.go\n3: 100644 blob a8eb28afd772faa4bfe1b6b8a647f048613435e2\tticker_test.go\n4: "
  }
}
13. mcp__sourcegraph__sg_read_file @ -

Input

{
  "repo": "github.com/sg-evals/grafana--26d36ec",
  "path": "pkg/services/ngalert/schedule/ticker/ticker.go"
}

Output

{
  "content": "{\"text\":\"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/ticker/ticker.go\\n1: package ticker\\n2: \\n3: import (\\n4: \\t\\\"fmt\\\"\\n5: \\t\\\"time\\\"\\n6: \\n7: \\t\\\"github.com/benbjohnson/clock\\\"\\n8: \\n9: \\t\\\"github.com/grafana/grafana/pkg/infra/log\\\"\\n10: )\\n11: \\n12: // Ticker emits ticks at regular time intervals. it's like a time.Ticker, except:\\n13: //   - it doesn't drop ticks for slow receivers, rather, it queues up.  so that callers are in control to instrument what's going on.\\n14: //   - it ticks on interval marks or very shortly after. this provides a predictable load pattern\\n15: //     (this shouldn't cause too much load contention issues because the next steps in the pipeline just process at their own pace)\\n16: //   - the timestamps are used to mark \\\"last datapoint to query for\\\" and as such, are a configurable amount of seconds in the past\\n17: type T struct {\\n18: \\tC        chan time.Time\\n19: \\tclock    clock.Clock\\n20: \\tlast     time.Time\\n21: \\tinterval time.Duration\\n22: \\tmetrics  *Metrics\\n23: \\tstopCh   chan struct{}\\n24: \\tlogger   log.Logger\\n25: }\\n26: \\n27: // NewTicker returns a Ticker that ticks on interval marks (or very shortly after) starting at c.Now(), and never drops ticks. interval should not be negative or zero.\\n28: func New(c clock.Clock, interval time.Duration, metric *Metrics, logger log.Logger) *T {\\n29: \\tif interval <= 0 {\\n30: \\t\\tpanic(fmt.Errorf(\\\"non-positive interval [%v] is not allowed\\\", interval))\\n31: \\t}\\n32: \\tt := &T{\\n33: \\t\\tC:        make(chan time.Time),\\n34: \\t\\tclock:    c,\\n35: \\t\\tlast:     getStartTick(c, interval),\\n36: \\t\\tinterval: interval,\\n37: \\t\\tmetrics:  metric,\\n38: \\t\\tstopCh:   make(chan struct{}),\\n39: \\t\\tlogger:   logger,\\n40: \\t}\\n41: \\tmetric.IntervalSeconds.Set(t.interval.Seconds()) // Seconds report fractional part as well, so it matches the format of the timestamp we report below\\n42: \\tgo t.run()\\n43: \\treturn t\\n44: }\\n45: \\n46: func getStartTick(clk clock.Clock, interval time.Duration) time.Time {\\n47: \\tnano := clk.Now().UnixNano()\\n48: \\treturn time.Unix(0, nano-(nano%interval.Nanoseconds()))\\n49: }\\n50: \\n51: func (t *T) run() {\\n52: \\tt.logger.Info(\\\"starting\\\", \\\"component\\\", \\\"ticker\\\", \\\"first_tick\\\", t.last.Add(t.interval))\\n53: LOOP:\\n54: \\tfor {\\n55: \\t\\tnext := t.last.Add(t.interval) // calculate the time of the next tick\\n56: \\t\\tt.metrics.NextTickTime.Set(float64(next.UnixNano()) / 1e9)\\n57: \\t\\tdiff := t.clock.Now().Sub(next) // calculate the difference between the current time and the next tick\\n58: \\t\\t// if difference is not negative, then it should tick\\n59: \\t\\tif diff >= 0 {\\n60: \\t\\t\\tselect {\\n61: \\t\\t\\tcase t.C <- next:\\n62: \\t\\t\\tcase <-t.stopCh:\\n63: \\t\\t\\t\\tbreak LOOP\\n64: \\t\\t\\t}\\n65: \\t\\t\\tt.last = next\\n66: \\t\\t\\tt.metrics.LastTickTime.Set(float64(next.UnixNano()) / 1e9)\\n67: \\t\\t\\tcontinue\\n68: \\t\\t}\\n69: \\t\\t// tick is too young. try again when ...\\n70: \\t\\tselect {\\n71: \\t\\tcase <-t.clock.After(-diff): // ...it'll definitely be old enough\\n72: \\t\\tcase <-t.stopCh:\\n73: \\t\\t\\tbreak LOOP\\n74: \\t\\t}\\n75: \\t}\\n76: \\tt.logger.Info(\\\"stopped\\\", \\\"component\\\", \\\"ticker\\\", \\\"last_tick\\\", t.last)\\n77: }\\n78: \\n79: // Stop stops the ticker. It does not close the C channel\\n80: func (t *T) Stop() {\\n81: \\tselect {\\n82: \\tcase t.stopCh <- struct{}{}:\\n83: \\tdefault:\\n84: \\t\\t// already stopped\\n85: \\t}\\n86: }\\n87: \"}",
  "structuredContent": {
    "text": "URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/ticker/ticker.go\n1: package ticker\n2: \n3: import (\n4: \t\"fmt\"\n5: \t
...
14. mcp__sourcegraph__sg_read_file @ -

Input

{
  "repo": "github.com/sg-evals/grafana--26d36ec",
  "path": "pkg/services/ngalert/schedule/recording_rule.go"
}

Output

{
  "content": "{\"text\":\"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/recording_rule.go\\n1: package schedule\\n2: \\n3: import (\\n4: \\tcontext \\\"context\\\"\\n5: \\t\\\"fmt\\\"\\n6: \\t\\\"time\\\"\\n7: \\n8: \\t\\\"github.com/benbjohnson/clock\\\"\\n9: \\t\\\"github.com/grafana/grafana-plugin-sdk-go/backend\\\"\\n10: \\t\\\"github.com/grafana/grafana-plugin-sdk-go/data\\\"\\n11: \\t\\\"go.opentelemetry.io/otel/attribute\\\"\\n12: \\t\\\"go.opentelemetry.io/otel/codes\\\"\\n13: \\t\\\"go.opentelemetry.io/otel/trace\\\"\\n14: \\t\\\"go.uber.org/atomic\\\"\\n15: \\n16: \\t\\\"github.com/grafana/grafana/pkg/infra/log\\\"\\n17: \\t\\\"github.com/grafana/grafana/pkg/infra/tracing\\\"\\n18: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/eval\\\"\\n19: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/metrics\\\"\\n20: \\tngmodels \\\"github.com/grafana/grafana/pkg/services/ngalert/models\\\"\\n21: \\t\\\"github.com/grafana/grafana/pkg/setting\\\"\\n22: \\t\\\"github.com/grafana/grafana/pkg/util\\\"\\n23: )\\n24: \\n25: type RuleStatus struct {\\n26: \\tHealth              string\\n27: \\tLastError           error\\n28: \\tEvaluationTimestamp time.Time\\n29: \\tEvaluationDuration  time.Duration\\n30: }\\n31: \\n32: type recordingRule struct {\\n33: \\tkey ngmodels.AlertRuleKeyWithGroup\\n34: \\n35: \\tctx                 context.Context\\n36: \\tevalCh              chan *Evaluation\\n37: \\tstopFn              util.CancelCauseFunc\\n38: \\thealth              *atomic.String\\n39: \\tlastError           *atomic.Error\\n40: \\tevaluationTimestamp *atomic.Time\\n41: \\tevaluationDuration  *atomic.Duration\\n42: \\n43: \\tretryConfig RetryConfig\\n44: \\n45: \\tclock       clock.Clock\\n46: \\tevalFactory eval.EvaluatorFactory\\n47: \\tcfg         setting.RecordingRuleSettings\\n48: \\twriter      RecordingWriter\\n49: \\n50: \\t// Event hooks that are only used in tests.\\n51: \\tevalAppliedHook evalAppliedFunc\\n52: \\tstopAppliedHook stopAppliedFunc\\n53: \\n54: \\tlogger  log.Logger\\n55: \\tmetrics *metrics.Scheduler\\n56: \\ttracer  tracing.Tracer\\n57: }\\n58: \\n59: func newRecordingRule(\\n60: \\tparent context.Context,\\n61: \\tkey ngmodels.AlertRuleKeyWithGroup,\\n62: \\tretryConfig RetryConfig,\\n63: \\tclock clock.Clock,\\n64: \\tevalFactory eval.EvaluatorFactory,\\n65: \\tcfg setting.RecordingRuleSettings,\\n66: \\tlogger log.Logger,\\n67: \\tmetrics *metrics.Scheduler,\\n68: \\ttracer tracing.Tracer,\\n69: \\twriter RecordingWriter,\\n70: \\tevalAppliedHook evalAppliedFunc,\\n71: \\tstopAppliedHook stopAppliedFunc,\\n72: ) *recordingRule {\\n73: \\tctx, stop := util.WithCancelCause(ngmodels.WithRuleKey(parent, key.AlertRuleKey))\\n74: \\treturn &recordingRule{\\n75: \\t\\tkey:                 key,\\n76: \\t\\tctx:                 ctx,\\n77: \\t\\tevalCh:              make(chan *Evaluation),\\n78: \\t\\tstopFn:              stop,\\n79: \\t\\thealth:              atomic.NewString(\\\"unknown\\\"),\\n80: \\t\\tlastError:           atomic.NewError(nil),\\n81: \\t\\tevaluationTimestamp: atomic.NewTime(time.Time{}),\\n82: \\t\\tevaluationDuration:  atomic.NewDuration(0),\\n83: \\t\\tclock:               clock,\\n84: \\t\\tevalFactory:         evalFactory,\\n85: \\t\\tcfg:                 cfg,\\n86: \\t\\tretryConfig:         retryConfig,\\n87: \\t\\tevalAppliedHook:     evalAppliedHook,\\n88: \\t\\tstopAppliedHook:     stopAppliedHook,\\n89: \\t\\tlogger:              logger.FromContext(ctx),\\n90: \\t\\tmetrics:             metrics,\\n91: \\t\\ttracer:              tracer,\\n92: \\t\\twriter:              writer,\\n93: \\t}\\n94: }\\n95: \\n96: func (r *recordingRule) Identifier() ngmodels.AlertRuleKeyWithGroup {\\n97: \\treturn r.key\\n98: }\\n99: \\n100: func (r *recordingRule) Type() ngmodels.RuleType {\\n101: \\treturn ngmodels.RuleTypeRecording\\n102: }\\n103: \\n104: func (r *recordingRule) Status()
...
15. mcp__sourcegraph__sg_read_file @ -

Input

{
  "repo": "github.com/sg-evals/grafana--26d36ec",
  "path": "pkg/services/ngalert/metrics/scheduler.go"
}

Output

{
  "content": "{\"text\":\"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/metrics/scheduler.go\\n1: package metrics\\n2: \\n3: import (\\n4: \\t\\\"github.com/prometheus/client_golang/prometheus\\\"\\n5: \\t\\\"github.com/prometheus/client_golang/prometheus/promauto\\\"\\n6: \\n7: \\t\\\"github.com/grafana/grafana/pkg/services/ngalert/schedule/ticker\\\"\\n8: )\\n9: \\n10: const (\\n11: \\tAlertRuleActiveLabelValue = \\\"active\\\"\\n12: \\tAlertRulePausedLabelValue = \\\"paused\\\"\\n13: )\\n14: \\n15: type Scheduler struct {\\n16: \\tRegisterer                          prometheus.Registerer\\n17: \\tBehindSeconds                       prometheus.Gauge\\n18: \\tEvalTotal                           *prometheus.CounterVec\\n19: \\tEvalFailures                        *prometheus.CounterVec\\n20: \\tEvalDuration                        *prometheus.HistogramVec\\n21: \\tEvalAttemptTotal                    *prometheus.CounterVec\\n22: \\tEvalAttemptFailures                 *prometheus.CounterVec\\n23: \\tProcessDuration                     *prometheus.HistogramVec\\n24: \\tSendDuration                        *prometheus.HistogramVec\\n25: \\tSimpleNotificationRules             *prometheus.GaugeVec\\n26: \\tGroupRules                          *prometheus.GaugeVec\\n27: \\tGroups                              *prometheus.GaugeVec\\n28: \\tSchedulePeriodicDuration            prometheus.Histogram\\n29: \\tSchedulableAlertRules               prometheus.Gauge\\n30: \\tSchedulableAlertRulesHash           prometheus.Gauge\\n31: \\tUpdateSchedulableAlertRulesDuration prometheus.Histogram\\n32: \\tTicker                              *ticker.Metrics\\n33: \\tEvaluationMissed                    *prometheus.CounterVec\\n34: \\tSimplifiedEditorRules               *prometheus.GaugeVec\\n35: \\tPrometheusImportedRules             *prometheus.GaugeVec\\n36: }\\n37: \\n38: func NewSchedulerMetrics(r prometheus.Registerer) *Scheduler {\\n39: \\treturn &Scheduler{\\n40: \\t\\tRegisterer: r,\\n41: \\t\\tBehindSeconds: promauto.With(r).NewGauge(prometheus.GaugeOpts{\\n42: \\t\\t\\tNamespace: Namespace,\\n43: \\t\\t\\tSubsystem: Subsystem,\\n44: \\t\\t\\tName:      \\\"scheduler_behind_seconds\\\",\\n45: \\t\\t\\tHelp:      \\\"The total number of seconds the scheduler is behind.\\\",\\n46: \\t\\t}),\\n47: \\t\\t// TODO: once rule groups support multiple rules, consider partitioning\\n48: \\t\\t// on rule group as well as tenant, similar to loki|cortex.\\n49: \\t\\tEvalTotal: promauto.With(r).NewCounterVec(\\n50: \\t\\t\\tprometheus.CounterOpts{\\n51: \\t\\t\\t\\tNamespace: Namespace,\\n52: \\t\\t\\t\\tSubsystem: Subsystem,\\n53: \\t\\t\\t\\tName:      \\\"rule_evaluations_total\\\",\\n54: \\t\\t\\t\\tHelp:      \\\"The total number of rule evaluations.\\\",\\n55: \\t\\t\\t},\\n56: \\t\\t\\t[]string{\\\"org\\\"},\\n57: \\t\\t),\\n58: \\t\\t// TODO: once rule groups support multiple rules, consider partitioning\\n59: \\t\\t// on rule group as well as tenant, similar to loki|cortex.\\n60: \\t\\tEvalFailures: promauto.With(r).NewCounterVec(\\n61: \\t\\t\\tprometheus.CounterOpts{\\n62: \\t\\t\\t\\tNamespace: Namespace,\\n63: \\t\\t\\t\\tSubsystem: Subsystem,\\n64: \\t\\t\\t\\tName:      \\\"rule_evaluation_failures_total\\\",\\n65: \\t\\t\\t\\tHelp:      \\\"The total number of rule evaluation failures.\\\",\\n66: \\t\\t\\t},\\n67: \\t\\t\\t[]string{\\\"org\\\"},\\n68: \\t\\t),\\n69: \\t\\tEvalDuration: promauto.With(r).NewHistogramVec(\\n70: \\t\\t\\tprometheus.HistogramOpts{\\n71: \\t\\t\\t\\tNamespace: Namespace,\\n72: \\t\\t\\t\\tSubsystem: Subsystem,\\n73: \\t\\t\\t\\tName:      \\\"rule_evaluation_duration_seconds\\\",\\n74: \\t\\t\\t\\tHelp:      \\\"The time to evaluate a rule.\\\",\\n75: \\t\\t\\t\\tBuckets:   []float64{.01, .1, .5, 1, 5, 10, 15, 30, 60, 120, 180, 240, 300},\\n76: \\t\\t\\t},\\n77: \\t\\t\\t[]string{\\\"org\\\"},\\n78: \\t\\t),\\n79: \\t\\tEva
...
16. mcp__sourcegraph__sg_read_file @ -

Input

{
  "repo": "github.com/sg-evals/grafana--26d36ec",
  "path": "pkg/services/ngalert/schedule/ticker/metrics.go"
}

Output

{
  "content": "{\"text\":\"URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/ticker/metrics.go\\n1: package ticker\\n2: \\n3: import (\\n4: \\t\\\"github.com/prometheus/client_golang/prometheus\\\"\\n5: \\t\\\"github.com/prometheus/client_golang/prometheus/promauto\\\"\\n6: )\\n7: \\n8: type Metrics struct {\\n9: \\tLastTickTime    prometheus.Gauge\\n10: \\tNextTickTime    prometheus.Gauge\\n11: \\tIntervalSeconds prometheus.Gauge\\n12: }\\n13: \\n14: func NewMetrics(reg prometheus.Registerer, subsystem string) *Metrics {\\n15: \\treturn &Metrics{\\n16: \\t\\tLastTickTime: promauto.With(reg).NewGauge(prometheus.GaugeOpts{\\n17: \\t\\t\\tNamespace: \\\"grafana\\\",\\n18: \\t\\t\\tSubsystem: subsystem,\\n19: \\t\\t\\tName:      \\\"ticker_last_consumed_tick_timestamp_seconds\\\",\\n20: \\t\\t\\tHelp:      \\\"Timestamp of the last consumed tick in seconds.\\\",\\n21: \\t\\t}),\\n22: \\t\\tNextTickTime: promauto.With(reg).NewGauge(prometheus.GaugeOpts{\\n23: \\t\\t\\tNamespace: \\\"grafana\\\",\\n24: \\t\\t\\tSubsystem: subsystem,\\n25: \\t\\t\\tName:      \\\"ticker_next_tick_timestamp_seconds\\\",\\n26: \\t\\t\\tHelp:      \\\"Timestamp of the next tick in seconds before it is consumed.\\\",\\n27: \\t\\t}),\\n28: \\t\\tIntervalSeconds: promauto.With(reg).NewGauge(prometheus.GaugeOpts{\\n29: \\t\\t\\tNamespace: \\\"grafana\\\",\\n30: \\t\\t\\tSubsystem: subsystem,\\n31: \\t\\t\\tName:      \\\"ticker_interval_seconds\\\",\\n32: \\t\\t\\tHelp:      \\\"Interval at which the ticker is meant to tick.\\\",\\n33: \\t\\t}),\\n34: \\t}\\n35: }\\n36: \"}",
  "structuredContent": {
    "text": "URL: https://demo.sourcegraph.com/github.com/sg-evals/grafana--26d36ec@7b5876467dc156dd3117dd0b3c15f994100e9597/-/blob/pkg/services/ngalert/schedule/ticker/metrics.go\n1: package ticker\n2: \n3: import (\n4: \t\"github.com/prometheus/client_golang/prometheus\"\n5: \t\"github.com/prometheus/client_golang/prometheus/promauto\"\n6: )\n7: \n8: type Metrics struct {\n9: \tLastTickTime    prometheus.Gauge\n10: \tNextTickTime    prometheus.Gauge\n11: \tIntervalSeconds prometheus.Gauge\n12: }\n13: \n14: func NewMetrics(reg prometheus.Registerer, subsystem string) *Metrics {\n15: \treturn &Metrics{\n16: \t\tLastTickTime: promauto.With(reg).NewGauge(prometheus.GaugeOpts{\n17: \t\t\tNamespace: \"grafana\",\n18: \t\t\tSubsystem: subsystem,\n19: \t\t\tName:      \"ticker_last_consumed_tick_timestamp_seconds\",\n20: \t\t\tHelp:      \"Timestamp of the last consumed tick in seconds.\",\n21: \t\t}),\n22: \t\tNextTickTime: promauto.With(reg).NewGauge(prometheus.GaugeOpts{\n23: \t\t\tNamespace: \"grafana\",\n24: \t\t\tSubsystem: subsystem,\n25: \t\t\tName:      \"ticker_next_tick_timestamp_seconds\",\n26: \t\t\tHelp:      \"Timestamp of the next tick in seconds before it is consumed.\",\n27: \t\t}),\n28: \t\tIntervalSeconds: promauto.With(reg).NewGauge(prometheus.GaugeOpts{\n29: \t\t\tNamespace: \"grafana\",\n30: \t\t\tSubsystem: subsystem,\n31: \t\t\tName:      \"ticker_interval_seconds\",\n32: \t\t\tHelp:      \"Interval at which the ticker is meant to tick.\",\n33: \t\t}),\n34: \t}\n35: }\n36: "
  }
}
17. Write @ -

Input

{
  "file_path": "/workspace/answer.json",
  "content": "{\n  \"files\": [\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/recording_rule.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/ticker/ticker.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/ticker/metrics.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/metrics/scheduler.go\"}\n  ],\n  \"symbols\": [\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"schedulePeriodic\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"processTick\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"runJobFn\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"runSequences\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"alertRule\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"Eval\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"Run\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"evaluate\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/recording_rule.go\", \"symbol\": \"recordingRule\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/recording_rule.go\", \"symbol\": \"Eval\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/ticker/ticker.go\", \"symbol\": \"T\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/metrics/scheduler.go\", \"symbol\": \"Scheduler\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/metrics/scheduler.go\", \"symbol\": \"BehindSeconds\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/metrics/scheduler.go\", \"symbol\": \"EvaluationMissed\"}\n  ],\n  \"chain\": [\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/ticker/ticker.go\", \"symbol\": \"New\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"Run\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"schedulePeriodic\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"processTick\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"runSequences\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"runJobFn\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"Eval\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"Run\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"evaluate\"}\n  ],\n  \"text\": \"The alerting evaluation scheduler tick and overrun detection in Grafana's ngalert subsystem spans several files under pkg/services/ngalert/schedule/.\\n
...

Output

{
  "type": "create",
  "filePath": "/workspace/answer.json",
  "content": "{\n  \"files\": [\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/recording_rule.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/ticker/ticker.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/ticker/metrics.go\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/metrics/scheduler.go\"}\n  ],\n  \"symbols\": [\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"schedulePeriodic\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"processTick\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"runJobFn\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"runSequences\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"alertRule\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"Eval\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"Run\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"evaluate\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/recording_rule.go\", \"symbol\": \"recordingRule\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/recording_rule.go\", \"symbol\": \"Eval\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/ticker/ticker.go\", \"symbol\": \"T\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/metrics/scheduler.go\", \"symbol\": \"Scheduler\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/metrics/scheduler.go\", \"symbol\": \"BehindSeconds\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/metrics/scheduler.go\", \"symbol\": \"EvaluationMissed\"}\n  ],\n  \"chain\": [\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/ticker/ticker.go\", \"symbol\": \"New\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"Run\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"schedulePeriodic\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"processTick\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"runSequences\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/schedule.go\", \"symbol\": \"runJobFn\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"Eval\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"Run\"},\n    {\"repo\": \"sg-evals/grafana--26d36ec\", \"path\": \"pkg/services/ngalert/schedule/alert_rule.go\", \"symbol\": \"evaluate\"}\n  ],\n  \"text\": \"The alerting evaluation scheduler tick and overrun detection in Grafana's ngalert subsystem spans several files under pkg/services/ng
...
Code Changes (1)
1. WRITE /workspace/answer.json
{
  "files": [
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/alert_rule.go"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/recording_rule.go"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/ticker/ticker.go"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/ticker/metrics.go"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/metrics/scheduler.go"}
  ],
  "symbols": [
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go", "symbol": "schedulePeriodic"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go", "symbol": "processTick"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go", "symbol": "runJobFn"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go", "symbol": "runSequences"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/alert_rule.go", "symbol": "alertRule"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/alert_rule.go", "symbol": "Eval"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/alert_rule.go", "symbol": "Run"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/alert_rule.go", "symbol": "evaluate"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/recording_rule.go", "symbol": "recordingRule"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/recording_rule.go", "symbol": "Eval"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/ticker/ticker.go", "symbol": "T"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/metrics/scheduler.go", "symbol": "Scheduler"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/metrics/scheduler.go", "symbol": "BehindSeconds"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/metrics/scheduler.go", "symbol": "EvaluationMissed"}
  ],
  "chain": [
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/ticker/ticker.go", "symbol": "New"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go", "symbol": "Run"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go", "symbol": "schedulePeriodic"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go", "symbol": "processTick"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go", "symbol": "runSequences"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/schedule.go", "symbol": "runJobFn"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/alert_rule.go", "symbol": "Eval"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/alert_rule.go", "symbol": "Run"},
    {"repo": "sg-evals/grafana--26d36ec", "path": "pkg/services/ngalert/schedule/alert_rule.go", "symbol": "evaluate"}
  ],
  "text": "The alerting evaluation scheduler tick and overrun detection in Grafana's ngalert subsystem spans several files under pkg/services/ngalert/schedule/.\n\n## Scheduler Tick Implementation\n\n**pkg/services/ngalert/schedule/ticker/ticker.go** defines the `T` struct — a custom ticker that never drops ticks (unlike time.Ticker). The `run()` method queues ticks on a buffered channel even when the consumer is slow, so callers have full control over measuring overruns.\n\n**pkg/services/ngalert/schedule/schedule.go** is the central scheduler file:\n- `schedule.Run()` creates the ...
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