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alert: remove keep_alive_total metric (#18444) #18450

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Aug 2, 2024
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alert: remove keep_alive_total metric (#18444) #18450

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15 changes: 0 additions & 15 deletions alert-rules.md
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Expand Up @@ -65,21 +65,6 @@ This section gives the alert rules for the TiDB component.

Same as [`TiDB_schema_error`](#tidb_schema_error).

#### `TiDB_monitor_keep_alive`

* Alert rule:

`increase(tidb_monitor_keep_alive_total[10m]) < 100`

* Description:

Indicates whether the TiDB process still exists. If the number of times for `tidb_monitor_keep_alive_total` increases less than 100 in 10 minutes, the TiDB process might already exit and an alert is triggered.

* Solution:

* Check whether the TiDB process is out of memory.
* Check whether the machine has restarted.

### Critical-level alerts

#### `TiDB_server_panic_total`
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