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

dveeden · web-flow · commit c4fe5070aa95 · 2026-05-28T08:19:48.000Z
diff --git a/tidb-configuration-file.md b/tidb-configuration-file.md
@@ -208,7 +208,7 @@ 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
`@@ -208,7 +208,7 @@ The TiDB configuration file supports more options than command-line parameters.`
`208`	`208`
`209`	`209`	`- Specifies the number of seconds that TiDB waits when you shut down the server, which allows the clients to disconnect.`
`210`	`210`	- Default value: `0`
`211`		`-- 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.`
	`211`	+- 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.
`212`	`212`
`213`	`213`	`> Note:`
`214`	`214`	`>`