mingzeh opened a new issue, #4160:
URL: https://github.com/apache/hertzbeat/issues/4160
### Is there an existing issue for this?
- [x] I have searched the existing issues
### Current Behavior
**Bug 1 — The whole group is prematurely marked `resolved` while other
alerts in the group are still firing.**
* Push 3: group contains `CPU(firing)` + `Memory(firing)`, group `status =
firing`.
* Push 4: CPU recovers; the pushed `GroupAlert` reports `status = resolved`
and `alerts` contains only `CPU(resolved)`.
* Push 5, immediately after: `Memory(firing, triggerTimes=2)` is still being
pushed — proving Memory never recovered, so the `resolved` group push in Push 4
was wrong.
**Bug 2 — A recovery (`resolved`) event is silently dropped; the DB record
stays `firing` forever.**
* Push 7: group contains `CPU(firing)` + `Memory(firing, triggerTimes=6)`.
* Push 8: Memory has actually recovered, but the pushed `GroupAlert`
contains only `CPU(firing)`. The memory `resolved` record disappears entirely —
it is never pushed, and the alert stays `firing` in the database permanently,
with no `endAt` and no auto-resolve.
### Expected Behavior
**Bug 1:** A group's status must reflect **all currently-active alerts in
that group**, not just the alerts received within the current push window.
While Memory is still firing, the group must stay `firing`; CPU recovering
alone must not flip the whole group to `resolved`.
**Bug 2:** Every `resolved` transition must be persisted, with `endAt` set
and status changed to `resolved`, and then pushed. The firing repeat-interval
throttle should only suppress *repeated firing* notifications — it must never
swallow a pending `resolved` event.
### Steps To Reproduce
> Reproducibility note:
>
> These issues are timing-sensitive and are **not 100% reproducible**.
>
> - **Bug 2 has a relatively higher reproduction rate** and is easier to
observe when a `resolved` transition happens during the firing repeat-interval
window.
> - **Bug 1 has a lower reproduction rate**, but it has been observed in
actual outbound `GroupAlert` payloads.
>
> Therefore, the steps below describe the reproduced lifecycle and timing
conditions rather than a strictly deterministic 100%-repro procedure.
Setup:
1. **One monitor**, collection interval `10s`, against a mock instance
`instance = 127.0.0.1:2222`.
2. **Two threshold rules** on the same instance:
* CPU alert: `cpu_usage > 80`, severity: `emergency`, Trigger Times: 1
* Memory alert: `memory_usage > 50`, severity: `critical`, Trigger Times:
1
3. **One group-convergence rule**, aggregate by host:
* Group Labels: `instance`
* Group Wait: `5s`
* Group Interval: `20s`
* Repeat Interval: `60s`
Both alerts collapse into the same group: `groupKey =
instance:127.0.0.1:2222`.
Reproduce Bug 1:
4. Drive CPU over threshold so CPU fires and is pushed, group `firing`.
5. While CPU is still firing, drive Memory over threshold too, so the group
now has 2 firing alerts: CPU + Memory.
6. Let **CPU recover** while Memory is still firing.
7. ❌ Observe the group push reports `status = resolved` with only
`CPU(resolved)` — even though Memory is still firing, confirmed by the very
next push showing `Memory(firing)`.
Reproduce Bug 2:
8. With CPU firing again and Memory firing, `triggerTimes=6`, let **Memory
recover during the firing repeat interval**, i.e. the interval window has
elapsed but less than `repeatInterval` has passed since the last repeat.
9. ❌ Observe the next group push contains only `CPU(firing)`; the Memory
`resolved` event is never pushed and the memory alert remains `firing` in the
DB indefinitely.
### Environment
```markdown
HertzBeat version(s): v1.8.0
```
### Debug logs
Data was captured 1:1 from the actual outbound `GroupAlert` payloads via a
custom `PostAlertPlugin`. The plugin just serializes each callback `GroupAlert`
to JSON:
```java
public class DemoPlugin implements PostAlertPlugin {
@Override
public void execute(GroupAlert alert, PluginContext pluginContext) {
log.info("DemoPlugin alert: {}", JsonUtil.toJson(alert));
}
}
```
Lifecycle of one group: `instance:127.0.0.1:2222`; `tt` = triggerTimes.
| Push | Time | group status | alerts in group
| Note |
| :--: | :------- | :------------- |
:------------------------------------------- |
:--------------------------------------- |
| 1 | 11:06:54 | firing | CPU(firing, tt=1)
| CPU first fires |
| 2 | 11:07:54 | firing | CPU(firing, tt=2)
| repeat, 60s |
| 3 | 11:08:54 | firing | CPU(firing, tt=3) + Memory(firing,
tt=1) | 2 firing alerts in group |
| 4 | 11:09:43 | **resolved** ❌ | CPU(resolved)
| **Bug 1** – whole group wrongly resolved |
| 5 | 11:10:04 | firing | Memory(firing, tt=2)
| disproves Push 4 |
| 6 | 11:13:04 | firing | Memory(firing, tt=5)
| memory still firing |
| 7 | 11:14:04 | firing | CPU(firing, tt=1 new) + Memory(firing,
tt=6) | CPU fires again |
| 8 | 11:15:04 | firing | CPU(firing, tt=2)
| **Bug 2** – Memory resolved vanishes |
| 9 | 11:20:33 | resolved | CPU(resolved)
| normal end |
Bug 1 evidence:
```text
Push 3 status=firing alerts=[CPU firing, Memory firing]
Push 4 status=resolved alerts=[CPU resolved] ← Memory dropped,
group wrongly resolved
Push 5 status=firing alerts=[Memory firing tt=2] ← Memory was firing
all along
```
Bug 2 evidence:
```text
Push 7 status=firing alerts=[CPU firing, Memory firing tt=6]
Push 8 status=firing alerts=[CPU firing tt=2] ← Memory resolved
silently lost, DB stays firing
```
---
**DemoPlugin Log**
```
2026-06-18 11:06:54.123 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:06:54","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU�
��率过高，当前值
98.0","status":"firing","triggerTimes":1,"startAt":1781752003603,"activeAt":1781752013600,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:06:54"}]}
2026-06-18 11:06:54.123 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:07:54.082 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:07:54","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU�
��率过高，当前值
98.0","status":"firing","triggerTimes":2,"startAt":1781752003603,"activeAt":1781752063601,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:07:54"}]}
2026-06-18 11:07:54.083 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:08:54.115 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:08:54","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:
2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
98.0","status":"firing","triggerTimes":3,"startAt":1781752003603,"activeAt":1781752133600,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18
11:08:54"},{"id":53965,"fingerprint":"alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical","labels":{"severity":"critical","alert-test":"hello","defineid":"17","instancename":"Mock
Server","instance":"127.0.0.1:2222","alertname":"内存告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server 检测出内存使用率过高，当前使用率
78.0029","status":"firing","triggerTimes":1,"startAt":1781752123640,"activeAt":1781752133641,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:08:54","gmtUpdate":"2026-06-18 11:08:54"}]}
2026-06-18 11:08:54.116 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:09:43.639 [alerter-reduce-worker-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"resolved","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:09:43","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.
1:2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
98.0","status":"resolved","triggerTimes":3,"startAt":1781752003603,"activeAt":1781752133600,"endAt":1781752183602,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:09:43"}]}
2026-06-18 11:09:43.639 [alerter-reduce-worker-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:10:04.144 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:10:04","alerts":[{"id":53965,"fingerprint":"alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical","labels":{"severity":"critical","alert-test":"hello","defineid":"17","instancename":"Mock
Server","instance":"127.0.0.1
:2222","alertname":"内存告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server 检测出内存使用率过高，当前使用率
78.0029","status":"firing","triggerTimes":2,"startAt":1781752123640,"activeAt":1781752203640,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:08:54","gmtUpdate":"2026-06-18 11:10:04"}]}
2026-06-18 11:10:04.144 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:11:04.103 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:11:04","alerts":[{"id":53965,"fingerprint":"alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical","labels":{"severity":"critical","alert-test":"hello","defineid":"17","instancename":"Mock
Server","instance":"127.0.0.1
:2222","alertname":"内存告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server 检测出内存使用率过高，当前使用率
78.0029","status":"firing","triggerTimes":3,"startAt":1781752123640,"activeAt":1781752253640,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:08:54","gmtUpdate":"2026-06-18 11:11:04"}]}
2026-06-18 11:11:04.104 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:12:04.114 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:12:04","alerts":[{"id":53965,"fingerprint":"alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical","labels":{"severity":"critical","alert-test":"hello","defineid":"17","instancename":"Mock
Server","instance":"127.0.0.1
:2222","alertname":"内存告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server 检测出内存使用率过高，当前使用率
78.0029","status":"firing","triggerTimes":4,"startAt":1781752123640,"activeAt":1781752323640,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:08:54","gmtUpdate":"2026-06-18 11:12:04"}]}
2026-06-18 11:12:04.115 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:13:04.107 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:13:04","alerts":[{"id":53965,"fingerprint":"alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical","labels":{"severity":"critical","alert-test":"hello","defineid":"17","instancename":"Mock
Server","instance":"127.0.0.1
:2222","alertname":"内存告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server 检测出内存使用率过高，当前使用率
78.0029","status":"firing","triggerTimes":5,"startAt":1781752123640,"activeAt":1781752383639,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:08:54","gmtUpdate":"2026-06-18 11:13:04"}]}
2026-06-18 11:13:04.108 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:14:04.111 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:14:04","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:
2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
88.0","status":"firing","triggerTimes":1,"startAt":1781752433599,"activeAt":1781752443599,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18
11:14:04"},{"id":53965,"fingerprint":"alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical","labels":{"severity":"critical","alert-test":"hello","defineid":"17","instancename":"Mock
Server","instance":"127.0.0.1:2222","alertname":"内存告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server 检测出内存使用率过高，当前使用率
78.0029","status":"firing","triggerTimes":6,"startAt":1781752123640,"activeAt":1781752443640,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:08:54","gmtUpdate":"2026-06-18 11:14:04"}]}
2026-06-18 11:14:04.112 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:15:04.107 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:15:04","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:
2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
88.0","status":"firing","triggerTimes":2,"startAt":1781752433599,"activeAt":1781752503600,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:15:04"}]}
2026-06-18 11:15:04.108 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:16:04.107 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:16:04","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:
2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
88.0","status":"firing","triggerTimes":3,"startAt":1781752433599,"activeAt":1781752563599,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:16:04"}]}
2026-06-18 11:16:04.107 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:17:04.148 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:17:04","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:
2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
88.0","status":"firing","triggerTimes":4,"startAt":1781752433599,"activeAt":1781752623599,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:17:04"}]}
2026-06-18 11:17:04.148 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:18:04.084 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:18:04","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:
2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
88.0","status":"firing","triggerTimes":5,"startAt":1781752433599,"activeAt":1781752683600,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:18:04"}]}
2026-06-18 11:18:04.085 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:19:04.098 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:19:04","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:
2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
88.0","status":"firing","triggerTimes":6,"startAt":1781752433599,"activeAt":1781752743601,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:19:04"}]}
2026-06-18 11:19:04.099 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:20:04.117 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"firing","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:20:04","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.1:
2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
88.0","status":"firing","triggerTimes":7,"startAt":1781752433599,"activeAt":1781752803599,"endAt":null,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:20:04"}]}
2026-06-18 11:20:04.117 [alarm-group-calculate-0] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
2026-06-18 11:20:33.615 [alerter-reduce-worker-1] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:19 - DemoPlugin alert:
{"id":53842,"groupKey":"instance:127.0.0.1:2222","status":"resolved","groupLabels":{"instance":"127.0.0.1:2222"},"commonLabels":{"alert-test":"hello","instancename":"Mock
Server","instance":"127.0.0.1:2222"},"commonAnnotations":{},"alertFingerprints":["alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","alert-test:hello,alertname:内存告警,defineid:17,instance:127.0.0.1:2222,instancename:Mock
Server,severity:critical"],"creator":null,"modifier":null,"gmtCreate":"2026-06-08
17:00:32","gmtUpdate":"2026-06-18
11:20:33","alerts":[{"id":53964,"fingerprint":"alert-test:hello,alertname:CPU告警,defineid:18,instance:127.0.0.1:2222,instancename:Mock
Server,severity:emergency","labels":{"severity":"emergency","alert-test":"hello","defineid":"18","instancename":"Mock
Server","instance":"127.0.0.
1:2222","alertname":"CPU告警"},"annotations":{"annotation":"hello","test-annotation":"world"},"content":"Mock
Server CPU使用率过高，当前值
88.0","status":"resolved","triggerTimes":7,"startAt":1781752433599,"activeAt":1781752803599,"endAt":1781752833602,"creator":null,"modifier":null,"gmtCreate":"2026-06-18
11:06:54","gmtUpdate":"2026-06-18 11:20:33"}]}
2026-06-18 11:20:33.616 [alerter-reduce-worker-1] INFO
org.apache.hertzbeat.plugin.impl.DemoPlugin Line:20 - DemoPlugin
pluginContext: {"params":null,"paramHolder":null}
```
### Anything else?
_No response_
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