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( 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.
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.
12 May 2010 SLONIK DROP NODE(7)