remove-leaf

Description

Removes a leaf node from the cluster without deleting its data.

This command must be run from the same host that the Master Aggregator is currently running on.

This command runs the REMOVE LEAF command on the Master Aggregator, which rebalances the leaf node’s partitions into the remaining cluster, and transitions the leaf node to the unknown state.

A leaf node that has been removed can be added back to the cluster, without any loss of data, by using the memsqlctl add-leaf command.

To completely remove a leaf node and its data, refer to the memsqlctl delete-node command.

Usage

Usage:
  memsqlctl remove-leaf [flags]

Flags:
      --force         Disable automatic rebalance
  -h, --help          Help for remove-leaf
      --host string   The cluster-addressable hostname for the node
      --port PORT     The cluster-addressable port for the node (default 3306)

Global Flags:
  -c, --config FILE_PATH                     Path to the memsqctl config file
      --default-install-dir DIRECTORY_PATH   Path to the default install directory
      --insecure-ssl                         Fall back to insecure SSL connections to local nodes if memsqlctl is unable to otherwise establish a connection (ADVANCED)
  -j, --json                                 Print output in JSON format
      --node-metadata-file FILE_PATH         Path to the node metadata file
      --parallelism POSITIVE_INTEGER         Maximum amount of operations to be run in parallel
      --ssl-ca FILE_PATH                     The path to the CA certificate file (in PEM format) to authenticate the database certificate
      --timeout duration                     Maximum time for operation to complete (e.g., 30s, 10m, 1.5h)
      --verbose-json                         Print output in JSON format, include some warnings and user messages
  -v, --verbosity count                      Increase logging verbosity
  -y, --yes                                  Enable non-interactive mode and assume the user would like to move forward with the proposed actions by default

Remarks

This command is interactive unless you use either --yes or --json flag to override interactive behavior.
The memsqlctl remove-leaf command is equivalent to the sdb-admin remove-leaf command.

Output

The following is the standard output for the remove-leaf command.

Shell

sudo memsqlctl remove-leaf --host "172.17.0.4" --port 3307

memsqlctl will perform the following actions on the local master aggregator on port 3306:
  · Run `REMOVE LEAF 172.17.0.4:3307`

Would you like to continue? [y/N]: y
✓ Removed leaf 172.17.0.4:3307 from cluster