NAME

       DROP NODE - Remove the node from participating in the replication

SYNOPSIS

       DROP NODE (options);

DESCRIPTION

       Drop a node. This command removes the specified node entirely from the replication systems
       configuration. If the replication daemon is still running on  that  node  (and  processing
       events), it will attempt to uninstall the replication system and terminate itself.

       ID = ival
              Node ID of the node to remove.

       EVENT NODE = ival
              Node ID of the node to generate the event.

       This uses “schemadocdropnode(p_no_id integer)” [not available as a man page].

       When you invoke DROP NODE, one of the steps is to run UNINSTALL NODE.

EXAMPLE

            DROP NODE ( ID = 2, EVENT NODE = 1 );

LOCKING BEHAVIOUR

       When  dropping  triggers  off of application tables, this will require exclusive access to
       each replicated table on the node being discarded.

DANGEROUS/UNINTUITIVE BEHAVIOUR

       If you are using connections that cache query plans (this is particularly common for  Java
       application  frameworks with connection pools), the connections may cache query plans that
       include the pre-DROP NODE state of things, and you  will  get  error  messages  indicating
       missing OIDs [“[MISSING TEXT]” [not available as a man page]].

       After dropping a node, you may also need to recycle connections in your application.

       You  cannot submit this to an EVENT NODE that is the number of the node being dropped; the
       request must go to some node that will remain in the cluster.

SLONIK EVENT CONFIRMATION BEHAVIOUR

       Slonik waits until nodes (other than the one being dropped) are caught  up  with  non-SYNC
       events from all other nodes before submitting the DROP NODE command.

VERSION INFORMATION

       This command was introduced in Slony-I 1.0

       In version 2.0, the default value for EVENT NODE was removed, so a node must be specified.

                                         6 February 2014                      SLONIK DROP NODE(7)