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

Browse Source 
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 15:23:19 -04:00
parent 1e0512ff23
commit 70e791f47e
2 changed files with 25 additions and 25 deletions
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2
doc/src/sgml/config.sgml
View File

@ -2740,7 +2740,7 @@ 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

48
doc/src/sgml/monitoring.sgml
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@ -1214,12 +1214,12 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<row> <row>
<entry><literal>ControlFileSync</literal></entry> <entry><literal>ControlFileSync</literal></entry>
<entry>Waiting for the <filename>pg_control</filename> file to reach <entry>Waiting for the <filename>pg_control</filename> file to reach
stable storage.</entry> durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>ControlFileSyncUpdate</literal></entry> <entry><literal>ControlFileSyncUpdate</literal></entry>
<entry>Waiting for an update to the <filename>pg_control</filename> file <entry>Waiting for an update to the <filename>pg_control</filename> file
to reach stable storage.</entry> to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>ControlFileWrite</literal></entry> <entry><literal>ControlFileWrite</literal></entry>
@ -1250,12 +1250,12 @@ 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 <entry>Waiting for an immediate synchronization of a relation data file to
stable storage.</entry> durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>DataFilePrefetch</literal></entry> <entry><literal>DataFilePrefetch</literal></entry>
@ -1268,7 +1268,7 @@ 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>
@ -1285,7 +1285,7 @@ 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 <entry>Waiting for data to reach durable storage while adding a line to the
data directory lock file.</entry> data directory lock file.</entry>
</row> </row>
<row> <row>
@ -1300,7 +1300,7 @@ 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 <entry>Waiting for data to reach durable storage while creating the data
directory lock file.</entry> directory lock file.</entry>
</row> </row>
<row> <row>
@ -1315,12 +1315,12 @@ 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 <entry>Waiting for logical rewrite mappings to reach durable storage
during a checkpoint.</entry> 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 <entry>Waiting for mapping data to reach durable storage during a logical
rewrite.</entry> rewrite.</entry>
</row> </row>
<row> <row>
@ -1330,7 +1330,7 @@ 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 <entry>Waiting for logical rewrite mappings to reach durable
storage.</entry> storage.</entry>
</row> </row>
<row> <row>
@ -1348,7 +1348,7 @@ 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>
@ -1373,12 +1373,12 @@ 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 <entry>Waiting for a replication slot control file to reach durable storage
while restoring it to memory.</entry> 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 <entry>Waiting for a replication slot control file to reach durable
storage.</entry> storage.</entry>
</row> </row>
<row> <row>
@ -1387,7 +1387,7 @@ 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 <entry>Waiting for SLRU data to reach durable storage during a checkpoint
or database shutdown.</entry> or database shutdown.</entry>
</row> </row>
<row> <row>
@ -1396,7 +1396,7 @@ 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 <entry>Waiting for SLRU data to reach durable storage following a page
write.</entry> write.</entry>
</row> </row>
<row> <row>
@ -1411,7 +1411,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<row> <row>
<entry><literal>SnapbuildSync</literal></entry> <entry><literal>SnapbuildSync</literal></entry>
<entry>Waiting for a serialized historical catalog snapshot to reach <entry>Waiting for a serialized historical catalog snapshot to reach
stable storage.</entry> durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>SnapbuildWrite</literal></entry> <entry><literal>SnapbuildWrite</literal></entry>
@ -1421,7 +1421,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<row> <row>
<entry><literal>TimelineHistoryFileSync</literal></entry> <entry><literal>TimelineHistoryFileSync</literal></entry>
<entry>Waiting for a timeline history file received via streaming <entry>Waiting for a timeline history file received via streaming
replication to reach stable storage.</entry> replication to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>TimelineHistoryFileWrite</literal></entry> <entry><literal>TimelineHistoryFileWrite</literal></entry>
@ -1434,7 +1434,7 @@ 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 <entry>Waiting for a newly created timeline history file to reach durable
storage.</entry> storage.</entry>
</row> </row>
<row> <row>
@ -1448,7 +1448,7 @@ 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>
@ -1456,7 +1456,7 @@ 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 <entry>Waiting for WAL to reach durable storage during
bootstrapping.</entry> bootstrapping.</entry>
</row> </row>
<row> <row>
@ -1471,7 +1471,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<row> <row>
<entry><literal>WALCopySync</literal></entry> <entry><literal>WALCopySync</literal></entry>
<entry>Waiting for a new WAL segment created by copying an existing one to <entry>Waiting for a new WAL segment created by copying an existing one to
reach stable storage.</entry> reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>WALCopyWrite</literal></entry> <entry><literal>WALCopyWrite</literal></entry>
@ -1480,7 +1480,7 @@ 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 <entry>Waiting for a newly initialized WAL file to reach durable
storage.</entry> storage.</entry>
</row> </row>
<row> <row>
@ -1498,11 +1498,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
</row> </row>
<row> <row>
<entry><literal>WALSync</literal></entry> <entry><literal>WALSync</literal></entry>
<entry>Waiting for a WAL file to reach stable storage.</entry> <entry>Waiting for a WAL file to reach durable storage.</entry>
</row> </row>
<row> <row>
<entry><literal>WALSyncMethodAssign</literal></entry> <entry><literal>WALSyncMethodAssign</literal></entry>
<entry>Waiting for data to reach stable storage while assigning a new <entry>Waiting for data to reach durable storage while assigning a new
WAL sync method.</entry> WAL sync method.</entry>
</row> </row>
<row> <row>