tidb-configuration-file: add detail for graceful shutdown (#21980) (#22965)

ti-chi-bot · web-flow · commit 85cc6b8ffe6d · 2026-05-29T03:43:17.000Z
diff --git a/tidb-configuration-file.md b/tidb-configuration-file.md
@@ -207,7 +207,7 @@ The TiDB configuration file supports more options than command-line parameters.
 
 - Specifies the number of seconds that TiDB waits when you shut down the server, which allows the clients to disconnect.
 - Default value: `0`
-- When TiDB is waiting for shutdown (in the grace period), the HTTP status will indicate a failure, which allows the load balancers to reroute traffic.
+- When TiDB is waiting for shutdown (in the grace period), the HTTP status will indicate a failure, which allows the load balancers to reroute traffic. TiDB also returns an error in response to the `COM_PING` command.
 
 > **Note:**
 >

Original file line number	Diff line number	Diff line change
`@@ -207,7 +207,7 @@ The TiDB configuration file supports more options than command-line parameters.`
`207`	`207`
`208`	`208`	`- Specifies the number of seconds that TiDB waits when you shut down the server, which allows the clients to disconnect.`
`209`	`209`	- Default value: `0`
`210`		`-- When TiDB is waiting for shutdown (in the grace period), the HTTP status will indicate a failure, which allows the load balancers to reroute traffic.`
	`210`	+- When TiDB is waiting for shutdown (in the grace period), the HTTP status will indicate a failure, which allows the load balancers to reroute traffic. TiDB also returns an error in response to the `COM_PING` command.
`211`	`211`
`212`	`212`	`> Note:`
`213`	`213`	`>`