fix(events): include alert details in all notify events - #5500
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Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review. 📝 WalkthroughWalkthroughThe event schema and recorder now preserve alert fingerprints. Notification context stores full muted alerts. Notification event creation receives the original alert set and resolves firing, resolved, and muted details. ChangesAlert event pipeline
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~25 minutes Sequence Diagram(s)sequenceDiagram
participant RetryStage
participant NotificationEvent
participant EventRecorder
RetryStage->>NotificationEvent: provide original alert slice
NotificationEvent->>NotificationEvent: resolve firing, resolved, and muted alerts
NotificationEvent->>EventRecorder: submit alert fingerprints and details
EventRecorder-->>RetryStage: record notification event
Merge Risk: 🟡 Moderate · up to JSON-formatted event-recorder output may change from 🚥 Pre-merge checks | ✅ 3 | ❌ 2❌ Failed checks (2 warnings)
✅ Passed checks (3 passed)
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Inline comments:
In `@notify/event.go`:
- Line 40: Update newNotificationEvent to partition alerts using the
firing/resolved fingerprint snapshot recorded by DedupStage.Exec before
Integration.Notify, rather than calling the time-dependent alert.Resolved()
again. Ensure each event preserves the status observed when notification began,
including alerts that resolve during a slow notifier request.
In `@proto/eventrecorder/events/v2/events.proto`:
- Line 71: Preserve protobuf compatibility in events.proto by retaining the
existing fields 1–4 and their GroupedAlert wire shape; do not replace them with
Alert at those numbers. Add direct-alert fields under new field numbers or
introduce a versioned schema, then update consumers and migrate retained records
before removing any legacy fields. Apply this to the sites at
proto/eventrecorder/events/v2/events.proto lines 71-71, 77-77, and 99-102.
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eventrecorder/events/v2/events.pb.gois excluded by!**/*.pb.go
📒 Files selected for processing (9)
eventrecorder/events.goeventrecorder/events_test.gonotify/context.gonotify/event.gonotify/mute.gonotify/mute_test.gonotify/notify_test.gonotify/retry_stage.goproto/eventrecorder/events/v2/events.proto
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| // GroupedAlert is a reference to an alert within an aggregation group. | ||
| message GroupedAlert { | ||
| uint64 hash = 1; | ||
| optional Alert details = 2; | ||
| } | ||
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I'm not sure this is the right thing to do - I think it's useful to have the alert hash recorded here, regardless of whether or not it's needed to join together the alerts in the notification message.
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The hash is internal to Alertmanager, we never expose it in APIs or otherwise so it is not useful for joining an alert notification to an actual received or grouped alert.
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I restored GroupedAlert and switched it to use fingerprint instead of hash.
| repeated GroupedAlert muted_alerts = 4; | ||
| repeated Alert alerts = 1; | ||
| repeated Alert firing_alerts = 2; | ||
| repeated Alert resolved_alerts = 3; |
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this causes a lot of duplication in the message, right? What if we went the other direction and ensured alerts contains all alerts, and then just provided the hash for firing/resolved/muted? Or we could even make firing/resolved/muted a property of the alert...
I guess I think there's some modeling defect here.
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Good catch, I think this tries to follow what is happening inside the notification pipeline but can result in duplicate data.
I think your suggestion is good, but we need to decide which hash we want to keep here, the nflog hash or the fingerprint.
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Restored as suggested, firing, resolved and muted variants only include fingerprints now.
Notification events did not include alert details like fingerprint in all cases. This made it defficult to track an alert end to end when querying events produced by event recorder. This change: - adds firing, muted, resolved alerts to notify context - emits the alerts in all notify events' details - uses fingerprint instead of nflog's xxhash This is follow up for prometheus#5409 Signed-off-by: Siavash Safi <siavash@cloudflare.com>
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Notification events did not include alert details like fingerprint in all cases. This made it defficult to track an alert end to end when querying events produced by event recorder.
This change:
This is follow up for #5409