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tidb-configuration-file: add graceful-wait-before-shutdown (#5825) #5835

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ti-chi-bot merged 1 commit into from
Jun 24, 2021
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tidb-configuration-file: add graceful-wait-before-shutdown (#5825) #5835

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6 changes: 6 additions & 0 deletions tidb-configuration-file.md
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Expand Up @@ -170,6 +170,12 @@ The TiDB configuration file supports more options than command-line parameters.
+ Default value: `true`
+ When this configuration value is `true`, the maximum length of a single `ENUM` element and a single `SET` element is 255 characters, which is compatible with [MySQL 8.0](https://dev.mysql.com/doc/refman/8.0/en/string-type-syntax.html). When this configuration value is `false`, there is no limit on the length of a single element, which is compatible with TiDB (earlier than v5.0).

#### `graceful-wait-before-shutdown` <span class="version-mark">New in v5.0</span>

- 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.

## Log

Configuration items related to log.
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