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tiup-component-dm-restart.md

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tiup dm restart
The `tiup dm restart` command is used to restart services in a specified cluster. During the restart, the services are unavailable. The syntax is `tiup dm restart <cluster-name> [flags]`. Options include -N for specifying nodes to restart, -R for specifying roles of nodes to restart, and -h for help information. The output is the log of the service restart process.

tiup dm restart

The command tiup dm restart is used to restart all or some of the services of the specified cluster.

Note:

During the restart process, the related services are unavailable for a period of time.

Syntax

tiup dm restart <cluster-name> [flags]

<cluster-name>: the name of the cluster to operate on. If you forget the cluster name, you can check it with the cluster list command.

Options

-N, --node

  • Specifies the nodes to be restarted. The value of this option is a comma-separated list of node IDs. You can get the node IDs from the first column of the cluster status table returned by the [tiup dm display](/tiup/tiup-component-dm-display.md) command.
  • Data type: STRING
  • If this option is not specified, TiUP restarts all nodes by default.

Note:

If the option -R, --role is specified at the same time, TiUP restarts service nodes that match both the requirements of -N, --node and -R, --role.

-R, --role

  • Specifies the roles of nodes to be restarted. The value of this option is a comma-separated list of the roles of the nodes. You can get the roles of the nodes from the second column of the cluster status table returned by the [tiup dm display](/tiup/tiup-component-dm-display.md) command.
  • Data type: STRING
  • If this option is not specified, TiUP restarts nodes of all roles by default.

Note:

If the option -N, --node is specified at the same time, TiUP restarts service nodes that match both the requirements of -N, --node and -R, --role.

-h, --help

  • Prints help information.
  • Data type: BOOLEAN
  • This option is disabled by default with the false value. To enable this option, add this option to the command, and either pass the true value or do not pass any value.

Outputs

The log of the service restart process.