github/repmgr
1
0
Fork 0
mirror of https://github.com/EnterpriseDB/repmgr.git synced 2026-03-22 22:56:29 +00:00
Code Issues Packages Projects Releases 1 Wiki Activity

Update view "replication_status"

Browse Source
This commit is contained in:
Ian Barwick
2017-08-24 15:05:13 +09:00
parent a127e8face
commit eee8d65259
5 changed files with 128 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
repmgr--4.0.sql
View File

@@ -49,27 +49,25 @@ CREATE VIEW repmgr.show_nodes AS
LEFT JOIN repmgr.nodes un
ON un.node_id = n.upstream_node_id;
-- repmgr.repmgr_get_last_updated()
CREATE VIEW repmgr.replication_status AS
SELECT m.primary_node_id, m.standby_node_id, n.node_name AS standby_name,
n.type AS node_type, n.active, last_monitor_time,
CASE WHEN n.type='standby' THEN m.last_wal_primary_location ELSE NULL END AS last_wal_primary_location,
m.last_wal_standby_location,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.replication_lag) ELSE NULL END AS replication_lag,
CASE WHEN n.type='standby' THEN
CASE WHEN replication_lag > 0 THEN age(now(), m.last_apply_time) ELSE '0'::INTERVAL END
ELSE NULL
END AS replication_time_lag,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.apply_lag) ELSE NULL END AS apply_lag,
AGE(NOW(), CASE WHEN pg_catalog.pg_is_in_recovery() THEN NOW() ELSE m.last_monitor_time END) AS communication_time_lag
FROM repmgr.monitoring_history m
JOIN repmgr.nodes n ON m.standby_node_id = n.node_id
WHERE (m.standby_node_id, m.last_monitor_time) IN (
SELECT m1.standby_node_id, MAX(m1.last_monitor_time)
FROM repmgr.monitoring_history m1 GROUP BY 1
);
/* ================= */
/* repmgrd functions */
/* ================= */
/* monitoring functions */
CREATE FUNCTION standby_set_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS '$libdir/repmgr', 'standby_set_last_updated'
LANGUAGE C STRICT;
CREATE FUNCTION standby_get_last_updated()
RETURNS TIMESTAMP WITH TIME ZONE
AS '$libdir/repmgr', 'standby_get_last_updated'
LANGUAGE C STRICT;
/* failover functions */
CREATE FUNCTION request_vote(INT,INT)
RETURNS pg_lsn
@@ -117,3 +115,25 @@ CREATE FUNCTION unset_bdr_failover_handler()
RETURNS VOID
AS '$libdir/repmgr', 'unset_bdr_failover_handler'
LANGUAGE C STRICT;
CREATE VIEW repmgr.replication_status AS
SELECT m.primary_node_id, m.standby_node_id, n.node_name AS standby_name,
n.type AS node_type, n.active, last_monitor_time,
CASE WHEN n.type='standby' THEN m.last_wal_primary_location ELSE NULL END AS last_wal_primary_location,
m.last_wal_standby_location,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.replication_lag) ELSE NULL END AS replication_lag,
CASE WHEN n.type='standby' THEN
CASE WHEN replication_lag > 0 THEN age(now(), m.last_apply_time) ELSE '0'::INTERVAL END
ELSE NULL
END AS replication_time_lag,
CASE WHEN n.type='standby' THEN pg_catalog.pg_size_pretty(m.apply_lag) ELSE NULL END AS apply_lag,
AGE(NOW(), CASE WHEN pg_catalog.pg_is_in_recovery() THEN repmgr.standby_get_last_updated() ELSE m.last_monitor_time END) AS communication_time_lag
FROM repmgr.monitoring_history m
JOIN repmgr.nodes n ON m.standby_node_id = n.node_id
WHERE (m.standby_node_id, m.last_monitor_time) IN (
SELECT m1.standby_node_id, MAX(m1.last_monitor_time)
FROM repmgr.monitoring_history m1 GROUP BY 1
);