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docs: replace "stable storage" with "durable" in descriptions

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For PG, "durable storage" has a clear meaning, while "stable storage"
does not, so use the former.

Discussion: https://postgr.es/m/20200817165222.GA31806@momjian.us

Backpatch-through: 9.5
This commit is contained in:
Bruce Momjian 2020-08-31 15:23:18 -04:00
parent e8e15385a1
commit 11d0ed6a05
2 changed files with 24 additions and 24 deletions
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2
doc/src/sgml/config.sgml
View File

@ -2471,7 +2471,7 @@ include_dir 'conf.d'
ensure data preservation even if a standby instance of ensure data preservation even if a standby instance of
<productname>PostgreSQL</productname> were to crash, but not if the standby <productname>PostgreSQL</productname> were to crash, but not if the standby
suffers an operating-system-level crash, since the data has not suffers an operating-system-level crash, since the data has not
necessarily reached stable storage on the standby. necessarily reached durable storage on the standby.
Finally, the setting <literal>local</literal> causes commits to wait for Finally, the setting <literal>local</literal> causes commits to wait for
local flush to disk, but not for replication. This is not usually local flush to disk, but not for replication. This is not usually
desirable when synchronous replication is in use, but is provided for desirable when synchronous replication is in use, but is provided for

46
doc/src/sgml/monitoring.sgml
View File

@ -1457,11 +1457,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>ControlFileSync</literal></entry> <entry><literal>ControlFileSync</literal></entry>
<entry>Waiting for the control file to reach stable storage.</entry> <entry>Waiting for the control file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>ControlFileSyncUpdate</literal></entry> <entry><literal>ControlFileSyncUpdate</literal></entry>
<entry>Waiting for an update to the control file to reach stable storage.</entry> <entry>Waiting for an update to the control file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>ControlFileWrite</literal></entry> <entry><literal>ControlFileWrite</literal></entry>
@ -1485,11 +1485,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>DataFileFlush</literal></entry> <entry><literal>DataFileFlush</literal></entry>
<entry>Waiting for a relation data file to reach stable storage.</entry> <entry>Waiting for a relation data file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>DataFileImmediateSync</literal></entry> <entry><literal>DataFileImmediateSync</literal></entry>
<entry>Waiting for an immediate synchronization of a relation data file to stable storage.</entry> <entry>Waiting for an immediate synchronization of a relation data file to durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>DataFilePrefetch</literal></entry> <entry><literal>DataFilePrefetch</literal></entry>
@ -1501,7 +1501,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>DataFileSync</literal></entry> <entry><literal>DataFileSync</literal></entry>
<entry>Waiting for changes to a relation data file to reach stable storage.</entry> <entry>Waiting for changes to a relation data file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>DataFileTruncate</literal></entry> <entry><literal>DataFileTruncate</literal></entry>
@ -1521,7 +1521,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>LockFileAddToDataDirSync</literal></entry> <entry><literal>LockFileAddToDataDirSync</literal></entry>
<entry>Waiting for data to reach stable storage while adding a line to the data directory lock file.</entry> <entry>Waiting for data to reach durable storage while adding a line to the data directory lock file.</entry>
</row> </row>
<row> <row>
<entry><literal>LockFileAddToDataDirWrite</literal></entry> <entry><literal>LockFileAddToDataDirWrite</literal></entry>
@ -1533,7 +1533,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>LockFileCreateSync</literal></entry> <entry><literal>LockFileCreateSync</literal></entry>
<entry>Waiting for data to reach stable storage while creating the data directory lock file.</entry> <entry>Waiting for data to reach durable storage while creating the data directory lock file.</entry>
</row> </row>
<row> <row>
<entry><literal>LockFileCreateWrite</literal></entry> <entry><literal>LockFileCreateWrite</literal></entry>
@ -1545,11 +1545,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>LogicalRewriteCheckpointSync</literal></entry> <entry><literal>LogicalRewriteCheckpointSync</literal></entry>
<entry>Waiting for logical rewrite mappings to reach stable storage during a checkpoint.</entry> <entry>Waiting for logical rewrite mappings to reach durable storage during a checkpoint.</entry>
</row> </row>
<row> <row>
<entry><literal>LogicalRewriteMappingSync</literal></entry> <entry><literal>LogicalRewriteMappingSync</literal></entry>
<entry>Waiting for mapping data to reach stable storage during a logical rewrite.</entry> <entry>Waiting for mapping data to reach durable storage during a logical rewrite.</entry>
</row> </row>
<row> <row>
<entry><literal>LogicalRewriteMappingWrite</literal></entry> <entry><literal>LogicalRewriteMappingWrite</literal></entry>
@ -1557,7 +1557,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>LogicalRewriteSync</literal></entry> <entry><literal>LogicalRewriteSync</literal></entry>
<entry>Waiting for logical rewrite mappings to reach stable storage.</entry> <entry>Waiting for logical rewrite mappings to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>LogicalRewriteTruncate</literal></entry> <entry><literal>LogicalRewriteTruncate</literal></entry>
@ -1573,7 +1573,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>RelationMapSync</literal></entry> <entry><literal>RelationMapSync</literal></entry>
<entry>Waiting for the relation map file to reach stable storage.</entry> <entry>Waiting for the relation map file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>RelationMapWrite</literal></entry> <entry><literal>RelationMapWrite</literal></entry>
@ -1597,11 +1597,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>ReplicationSlotRestoreSync</literal></entry> <entry><literal>ReplicationSlotRestoreSync</literal></entry>
<entry>Waiting for a replication slot control file to reach stable storage while restoring it to memory.</entry> <entry>Waiting for a replication slot control file to reach durable storage while restoring it to memory.</entry>
</row> </row>
<row> <row>
<entry><literal>ReplicationSlotSync</literal></entry> <entry><literal>ReplicationSlotSync</literal></entry>
<entry>Waiting for a replication slot control file to reach stable storage.</entry> <entry>Waiting for a replication slot control file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>ReplicationSlotWrite</literal></entry> <entry><literal>ReplicationSlotWrite</literal></entry>
@ -1609,7 +1609,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>SLRUFlushSync</literal></entry> <entry><literal>SLRUFlushSync</literal></entry>
<entry>Waiting for SLRU data to reach stable storage during a checkpoint or database shutdown.</entry> <entry>Waiting for SLRU data to reach durable storage during a checkpoint or database shutdown.</entry>
</row> </row>
<row> <row>
<entry><literal>SLRURead</literal></entry> <entry><literal>SLRURead</literal></entry>
@ -1617,7 +1617,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>SLRUSync</literal></entry> <entry><literal>SLRUSync</literal></entry>
<entry>Waiting for SLRU data to reach stable storage following a page write.</entry> <entry>Waiting for SLRU data to reach durable storage following a page write.</entry>
</row> </row>
<row> <row>
<entry><literal>SLRUWrite</literal></entry> <entry><literal>SLRUWrite</literal></entry>
@ -1629,7 +1629,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>SnapbuildSync</literal></entry> <entry><literal>SnapbuildSync</literal></entry>
<entry>Waiting for a serialized historical catalog snapshot to reach stable storage.</entry> <entry>Waiting for a serialized historical catalog snapshot to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>SnapbuildWrite</literal></entry> <entry><literal>SnapbuildWrite</literal></entry>
@ -1637,7 +1637,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>TimelineHistoryFileSync</literal></entry> <entry><literal>TimelineHistoryFileSync</literal></entry>
<entry>Waiting for a timeline history file received via streaming replication to reach stable storage.</entry> <entry>Waiting for a timeline history file received via streaming replication to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>TimelineHistoryFileWrite</literal></entry> <entry><literal>TimelineHistoryFileWrite</literal></entry>
@ -1649,7 +1649,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>TimelineHistorySync</literal></entry> <entry><literal>TimelineHistorySync</literal></entry>
<entry>Waiting for a newly created timeline history file to reach stable storage.</entry> <entry>Waiting for a newly created timeline history file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>TimelineHistoryWrite</literal></entry> <entry><literal>TimelineHistoryWrite</literal></entry>
@ -1661,7 +1661,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>TwophaseFileSync</literal></entry> <entry><literal>TwophaseFileSync</literal></entry>
<entry>Waiting for a two phase state file to reach stable storage.</entry> <entry>Waiting for a two phase state file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>TwophaseFileWrite</literal></entry> <entry><literal>TwophaseFileWrite</literal></entry>
@ -1669,7 +1669,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>WALBootstrapSync</literal></entry> <entry><literal>WALBootstrapSync</literal></entry>
<entry>Waiting for WAL to reach stable storage during bootstrapping.</entry> <entry>Waiting for WAL to reach durable storage during bootstrapping.</entry>
</row> </row>
<row> <row>
<entry><literal>WALBootstrapWrite</literal></entry> <entry><literal>WALBootstrapWrite</literal></entry>
@ -1681,7 +1681,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>WALCopySync</literal></entry> <entry><literal>WALCopySync</literal></entry>
<entry>Waiting a new WAL segment created by copying an existing one to reach stable storage.</entry> <entry>Waiting a new WAL segment created by copying an existing one to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>WALCopyWrite</literal></entry> <entry><literal>WALCopyWrite</literal></entry>
@ -1689,7 +1689,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>WALInitSync</literal></entry> <entry><literal>WALInitSync</literal></entry>
<entry>Waiting for a newly initialized WAL file to reach stable storage.</entry> <entry>Waiting for a newly initialized WAL file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>WALInitWrite</literal></entry> <entry><literal>WALInitWrite</literal></entry>
@ -1705,7 +1705,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>WALSyncMethodAssign</literal></entry> <entry><literal>WALSyncMethodAssign</literal></entry>
<entry>Waiting for data to reach stable storage while assigning WAL sync method.</entry> <entry>Waiting for data to reach durable storage while assigning WAL sync method.</entry>
</row> </row>
<row> <row>
<entry><literal>WALWrite</literal></entry> <entry><literal>WALWrite</literal></entry>