Changed the alert rule of TiKV_thread_apply_worker_cpu_seconds (#7747) (

#8080)
pingcap · Dec 29, 2021 · b24da8f · b24da8f
1 parent 4a31c3c
commit b24da8f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/alert-rules.md b/alert-rules.md
@@ -593,11 +593,11 @@ summary: TiDB 集群中各组件的报警规则详解。
 
 * 报警规则：
 
-    `sum(rate(tikv_thread_cpu_seconds_total{name="apply_worker"}[1m])) by (instance) > 1.8`
+    `max(rate(tikv_thread_cpu_seconds_total{name=~"apply_.*"}[1m])) by (instance) > 0.9`
 
 * 规则描述：
 
-    Apply Raft log 线程压力太大，通常是因为写入太猛了。
+    Apply Raft log 线程压力太大，已经接近或超过 apply 线程的处理上限。通常是因为短期内写入的数据量太多造成的。
 
 ### 警告级别报警项