diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml index ec5328e..9a8b111 100644 --- a/doc/src/sgml/monitoring.sgml +++ b/doc/src/sgml/monitoring.sgml @@ -781,300 +781,300 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser + BufferPin + BufferPin + Waiting to acquire a pin on a buffer. + + + Lock + advisory + Waiting to acquire an advisory user lock. + + + extend + Waiting to extend a relation. + + + object + Waiting to acquire a lock on a non-relation database object. + + + page + Waiting to acquire a lock on page of a relation. + + + relation + Waiting to acquire a lock on a relation. + + + speculative token + Waiting to acquire a speculative insertion lock. + + + transactionid + Waiting for a transaction to finish. + + + tuple + Waiting to acquire a lock on a tuple. + + + userlock + Waiting to acquire a userlock. + + + virtualxid + Waiting to acquire a virtual xid lock. + + LWLockNamed - ShmemIndexLock - Waiting to find or allocate space in shared memory. + AddinShmemInitLock + Waiting to manage space allocation in shared memory. + + + AutovacuumLock + Autovacuum worker or launcher waiting to update or + read the current state of autovacuum workers. + + + AsyncCtlLock + Waiting to read or update shared notification state. + + + AsyncQueueLock + Waiting to read or update notification messages. + + + AutoFileLock + Waiting to update the postgresql.auto.conf file. + + + AutovacuumLock + Autovacuum worker or launcher waiting to update or + read the current state of autovacuum workers. + + + AutovacuumScheduleLock + Waiting to ensure that the table it has selected for a vacuum + still needs vacuuming. + + + + BackgroundWorkerLock + Waiting to read or update background worker state. + + + BtreeVacuumLock + Waiting to read or update vacuum-related information for a + Btree index. + + + CheckpointerCommLock + Waiting to manage fsync requests. + + + CheckpointLock + Waiting to perform checkpoint. + + + CLogControlLock + Waiting to read or update transaction status. + + + CommitTsControlLock + Waiting to read or update transaction commit timestamps. + + + CommitTsLock + Waiting to read or update the last value set for the + transaction timestamp. + + + ControlFileLock + Waiting to read or update the control file or creation of a + new WAL file. + + + DynamicSharedMemoryControlLock + Waiting to read or update dynamic shared memory state. + + + MultiXactGenLock + Waiting to read or update shared multixact state. + + + MultiXactMemberControlLock + Waiting to read or update multixact member mappings. + + + MultiXactOffsetControlLock + Waiting to read or update multixact offset mappings. + + + MultiXactTruncationLock + Waiting to read or truncate multixact information. OidGenLock Waiting to allocate or assign an OID. + + ProcArrayLock + Waiting to get a snapshot or clearing a transaction id at + transaction end. + + + RelationMappingLock + Waiting to update the relation map file used to store catalog + to filenode mapping. + + + + RelCacheInitLock + Waiting to read or write relation cache initialization + file. + + + ReplicationOriginLock + Waiting to setup, drop or use replication origin. + + + ReplicationSlotAllocationLock + Waiting to allocate or free a replication slot. + + + ReplicationSlotControlLock + Waiting to read or update replication slot state. + + + SerializableFinishedListLock + Waiting to access the list of finished serializable + transactions. + + + SerializablePredicateLockListLock + Waiting to perform an operation on a list of locks held by + serializable transactions. + + + SerializableXactHashLock + Waiting to retrieve or store information about serializable + transactions. + + + ShmemIndexLock + Waiting to find or allocate space in shared memory. + + + SInvalReadLock + Waiting to retrieve or remove messages from shared invalidation + queue. + + + SInvalWriteLock + Waiting to add a message in shared invalidation queue. + + + SubtransControlLock + Waiting to read or update sub-transaction information. + + + SyncRepLock + Waiting to read or update information about synchronous + replicas. + + + SyncScanLock + Waiting to get the start location of a scan on a table for + synchronized scans. + + + TablespaceCreateLock + Waiting to create or drop the tablespace. + + + TwoPhaseStateLock + Waiting to read or update the state of prepared transactions. + + + WALBufMappingLock + Waiting to replace a page in WAL buffers. + + + WALWriteLock + Waiting for WAL buffers to be written to disk. + + + XidGenLock + Waiting to allocate or assign a transaction id. + - XidGenLock - Waiting to allocate or assign a transaction id. - - - ProcArrayLock - Waiting to get a snapshot or clearing a transaction id at - transaction end. - - - SInvalReadLock - Waiting to retrieve or remove messages from shared invalidation - queue. - - - SInvalWriteLock - Waiting to add a message in shared invalidation queue. - - - WALBufMappingLock - Waiting to replace a page in WAL buffers. - - - WALWriteLock - Waiting for WAL buffers to be written to disk. - - - ControlFileLock - Waiting to read or update the control file or creation of a - new WAL file. - - - CheckpointLock - Waiting to perform checkpoint. - - - CLogControlLock - Waiting to read or update transaction status. - - - SubtransControlLock - Waiting to read or update sub-transaction information. - - - MultiXactGenLock - Waiting to read or update shared multixact state. - - - MultiXactOffsetControlLock - Waiting to read or update multixact offset mappings. - - - MultiXactMemberControlLock - Waiting to read or update multixact member mappings. - - - RelCacheInitLock - Waiting to read or write relation cache initialization - file. - - - CheckpointerCommLock - Waiting to manage fsync requests. - - - TwoPhaseStateLock - Waiting to read or update the state of prepared transactions. - - - TablespaceCreateLock - Waiting to create or drop the tablespace. - - - BtreeVacuumLock - Waiting to read or update vacuum-related information for a - Btree index. - - - AddinShmemInitLock - Waiting to manage space allocation in shared memory. - - - AutovacuumLock - Autovacuum worker or launcher waiting to update or - read the current state of autovacuum workers. - - - AutovacuumScheduleLock - Waiting to ensure that the table it has selected for a vacuum - still needs vacuuming. - - - - SyncScanLock - Waiting to get the start location of a scan on a table for - synchronized scans. - - - RelationMappingLock - Waiting to update the relation map file used to store catalog - to filenode mapping. - - - - AsyncCtlLock - Waiting to read or update shared notification state. - - - AsyncQueueLock - Waiting to read or update notification messages. - - - SerializableXactHashLock - Waiting to retrieve or store information about serializable - transactions. - - - SerializableFinishedListLock - Waiting to access the list of finished serializable - transactions. - - - SerializablePredicateLockListLock - Waiting to perform an operation on a list of locks held by - serializable transactions. - - - OldSerXidLock - Waiting to read or record conflicting serializable - transactions. - - - SyncRepLock - Waiting to read or update information about synchronous - replicas. - - - BackgroundWorkerLock - Waiting to read or update background worker state. - - - DynamicSharedMemoryControlLock - Waiting to read or update dynamic shared memory state. - - - AutoFileLock - Waiting to update the postgresql.auto.conf file. - - - ReplicationSlotAllocationLock - Waiting to allocate or free a replication slot. - - - ReplicationSlotControlLock - Waiting to read or update replication slot state. - - - CommitTsControlLock - Waiting to read or update transaction commit timestamps. - - - CommitTsLock - Waiting to read or update the last value set for the - transaction timestamp. - - - ReplicationOriginLock - Waiting to setup, drop or use replication origin. - - - MultiXactTruncationLock - Waiting to read or truncate multixact information. - - - LWLockTranche - clog - Waiting for I/O on a clog (transcation status) buffer. - - - commit_timestamp - Waiting for I/O on commit timestamp buffer. - - - subtrans - Waiting for I/O a subtransaction buffer. - - - multixact_offset - Waiting for I/O on a multixact offset buffer. - - - multixact_member - Waiting for I/O on a multixact_member buffer. - - - async - Waiting for I/O on an async (notify) buffer. - - - oldserxid - Waiting to I/O on an oldserxid buffer. - - - wal_insert - Waiting to insert WAL into a memory buffer. - - - buffer_content - Waiting to read or write a data page in memory. - - - buffer_io - Waiting for I/O on a data page. - - - replication_origin - Waiting to read or update the replication progress. - - - replication_slot_io - Waiting for I/O on a replication slot. - - - proc - Waiting to read or update the fast-path lock information. - - - buffer_mapping - Waiting to associate a data block with a buffer in the buffer - pool. - - - lock_manager - Waiting to add or examine locks for backends, or waiting to - join or exit a locking group (used by parallel query). - - - predicate_lock_manager - Waiting to add or examine predicate lock information. - - - Lock - relation - Waiting to acquire a lock on a relation. - - - extend - Waiting to extend a relation. - - - page - Waiting to acquire a lock on page of a relation. - - - tuple - Waiting to acquire a lock on a tuple. - - - transactionid - Waiting for a transaction to finish. - - - virtualxid - Waiting to acquire a virtual xid lock. - - - speculative token - Waiting to acquire a speculative insertion lock. - - - object - Waiting to acquire a lock on a non-relation database object. - - - userlock - Waiting to acquire a userlock. - - - advisory - Waiting to acquire an advisory user lock. - - - BufferPin - BufferPin - Waiting to acquire a pin on a buffer. - + LWLockTranche + async + Waiting for I/O on an async (notify) buffer. + + + buffer_content + Waiting to read or write a data page in memory. + + + buffer_io + Waiting for I/O on a data page. + + + buffer_mapping + Waiting to associate a data block with a buffer in the buffer + pool. + + + clog + Waiting for I/O on a clog (transcation status) buffer. + + + commit_timestamp + Waiting for I/O on commit timestamp buffer. + + + lock_manager + Waiting to add or examine locks for backends, or waiting to + join or exit a locking group (used by parallel query). + + + multixact_member + Waiting for I/O on a multixact_member buffer. + + + multixact_offset + Waiting for I/O on a multixact offset buffer. + + + oldserxid + Waiting to I/O on an oldserxid buffer. + + + predicate_lock_manager + Waiting to add or examine predicate lock information. + + + proc + Waiting to read or update the fast-path lock information. + + + replication_origin + Waiting to read or update the replication progress. + + + replication_slot_io + Waiting for I/O on a replication slot. + + + subtrans + Waiting for I/O a subtransaction buffer. + + + wal_insert + Waiting to insert WAL into a memory buffer. +