ltcluster witness unregister — remove a witness node's information to the ltcluster metadata
ltcluster witness unregister
removes a witness server's node
record from the ltcluster metadata.
The node does not have to be running to be unregistered, however if this is the
case then either provide connection information for the primary server, or
execute ltcluster witness unregister
on a running node and
provide the parameter --node-id
with the node ID of the
witness server.
Execute with the --dry-run
option to check what would happen
without actually registering the witness server.
Unregistering a running witness node:
$ ltcluster -f /etc/ltcluster.conf witness unregister INFO: connecting to witness node "node3" (ID: 3) INFO: unregistering witness node 3 INFO: witness unregistration complete DETAIL: witness node with UD 3 successfully unregistered
Unregistering a non-running witness node:
$ ltcluster -f /etc/ltcluster.conf witness unregister -h node1 -p 5501 -F INFO: connecting to node "node3" (ID: 3) NOTICE: unable to connect to node "node3" (ID: 3), removing node record on cluster primary only INFO: unregistering witness node 3 INFO: witness unregistration complete DETAIL: witness node with id ID 3 successfully unregistered
This command will not make any changes to the witness node itself and will neither remove any data from the witness database nor stop the LightDB instance.
A witness node which has been unregistered, can be re-registered with ltcluster witness register --force.
--dry-run
Check prerequisites but don't actually unregister the witness.
--node-id
Unregister witness server with the specified node ID.
A witness_unregister
event notification will be generated.