cluster_name
A configuration parameter which is included in process titles
cluster_name is a configuration parameter, the value of which is included in process titles to assist differentiation between different PostgreSQL instances running on the same machine.
cluster_name was added in PostgreSQL 9.5.
Usage
In PostgreSQL 12 and later, if cluster_name is set, fallback_application_name will be set to that value when connecting to the upstream node.
Default value
The default value for cluster_name is: '' (empty string).
Change history
- PostgreSQL 9.5
- added (commit 51adcaa0)
Examples
With cluster_name set to "node2":
42498 ?? Ss 0:00.03 postgres: node2: logger 42499 ?? Ss 0:00.03 postgres: node2: startup recovering 000000010000000000000003 42500 ?? Ss 0:00.01 postgres: node2: checkpointer 42501 ?? Ss 0:00.07 postgres: node2: background writer 42502 ?? Ss 0:00.00 postgres: node2: stats collector 42503 ?? Ss 0:01.37 postgres: node2: walreceiver streaming 0/3001F38
References
- PostgreSQL documentation: cluster_name
Useful links
- Setting your cluster name in PostgreSQL 9.5 - December 2015 blog article by DBI Services