Completely removes a node and its data from the cluster.

Note that this action is only reversible by deploying a new leaf in the same location, attaching it, and rebalancing partitions.

This command removes the specified node from the cluster and deletes its data. If the node is a leaf node, this command will also rebalance the leaf node’s partitions into the remaining cluster.

A node must be stopped before it can be deleted. Use the stop-node command to perform this action.

If --memsql-id, or --memsql-cnf, or --all is not specified, memsqlctl will prompt the user to select a node from a table.

If --memsql-cnf is specified, memsqlctl will attempt to first delete the specifieddirectories in the config (datadir, plancachedir, tracelogsdir, etc.). Finally, memsqlctl will delete the memsql.cnf file itself and its record in the node metadata file, nodes.hcl.

To remove a leaf node from the cluster without deleting its data, and with the ability to add it back to the cluster, refer to the memsqlctl remove-leaf command.


memsqlctl delete-node [flags]
-a, --all Delete all nodes on the host
-h, --help Help for delete-node
--memsql-id strings the node ID of the node to delete
--stop Stop each node before deletion
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


  • This command is interactive unless you use either --yes or --json flag to override interactive behavior.

  • The memsqlctl delete-node command is equivalent to the sdb-admin delete-node command.


The following is the standard output for the delete-node command.

sudo memsqlctl delete-node
memsqlctl will perform the following actions:
  · Delete SingleStore node
    - Base directory and contents: /var/lib/memsql/61cbf018-4256-4c43-82a7-530220e5817b

Would you like to continue? [y/N]: y
✓ Deleted node defined by MemSQL config file /var/lib/memsql/61cbf018-4256-4c43-82a7-530220e5817b/memsql.cnf

Last modified: April 22, 2024

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