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postgres_locks_munin • PostgreSQL

Graph Information

Field Internal name Type Warn Crit Info
ExclusiveLock exclusivelock gauge     Infrequently issued on system tables, or by applications
AccessShareLock accesssharelock gauge     Used by read only queries
ShareUpdateExclusiveLock shareupdateexclusivelock gauge     Used by VACUUM, ANALYZE and CREATE INDEX CONCURRENTLY queries
ShareLock sharelock gauge     Used by CREATE INDEX queries
AccessExclusiveLock accessexclusivelock gauge     Used by ALTER TABLE, DROP TABLE, TRUNCATE, REINDEX, CLUSTER and VACUUM FULL queries
ShareRowExclusiveLock sharerowexclusivelock gauge     Only issued explicitly from applications
RowExclusiveLock rowexclusivelock gauge     Used by UPDATE, DELETE and INSERT queries
RowShareLock rowsharelock gauge     Used by SELECT FOR SHARE and SELECT FOR UPDATE queries

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