gp_stat_replication

The gp_stat_replication view contains replication statistics of the walsender process that is used for Greenplum Database Write-Ahead Logging (WAL) replication when master or segment mirroring is enabled.

column type references description
gp_segment_id integer Unique identifier of a segment (or master) instance.
pid integer Process ID of the walsender backend process.
usesysid oid User system ID that runs the walsender backend process.
usename name User name that runs the walsender backend process.
application_name text Client application name.
client_addr inet Client IP address.
client_hostname text Client host name.
client_port integer Client port number.
backend_start timestamp Operation start timestamp.
backend_xmin xid The current backend's xmin horizon.
state text walsender state. The value can be:

startup

backup

catchup

streaming
sent_location text walsender xlog record sent location.
write_location text walreceiver xlog record write location.
flush_location text walreceiver xlog record flush location.
replay_location text Master standby or segment mirror xlog record replay location.
sync_priority integer Priority. The value is 1.
sync_state text walsendersynchronization state. The value is sync.
sync_error text walsender synchronization error. none if no error.

Parent topic: System Catalogs Definitions

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