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

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

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index bd92e8809db771ebcd78e303c7e6780aab25e203..206ee4c98431e184111e93534113fdd296bf6a49 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -2689,7 +2689,7 @@ include_dir 'conf.d'
         ensure data preservation even if a standby instance of
         <productname>PostgreSQL</productname> were to crash, but not if the standby
         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
         local flush to disk, but not for replication.  This is not usually
         desirable when synchronous replication is in use, but is provided for

diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 50f0612b430f309a8cef9e9a878e816ac69a3526..1d906867cceed583daf39ee4b62f62e1a69d74e6 100644 (file)
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1206,12 +1206,12 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      <row>
       <entry><literal>ControlFileSync</literal></entry>
       <entry>Waiting for the <filename>pg_control</filename> file to reach
-       stable storage.</entry>
+       durable storage.</entry>
      </row>
      <row>
       <entry><literal>ControlFileSyncUpdate</literal></entry>
       <entry>Waiting for an update to the <filename>pg_control</filename> file
-       to reach stable storage.</entry>
+       to reach durable storage.</entry>
      </row>
      <row>
       <entry><literal>ControlFileWrite</literal></entry>
@@ -1242,12 +1242,12 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
       <entry><literal>DataFileImmediateSync</literal></entry>
       <entry>Waiting for an immediate synchronization of a relation data file to
-       stable storage.</entry>
+       durable storage.</entry>
      </row>
      <row>
       <entry><literal>DataFilePrefetch</literal></entry>
@@ -1260,7 +1260,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
       <entry><literal>DataFileTruncate</literal></entry>
@@ -1277,7 +1277,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1292,7 +1292,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1307,12 +1307,12 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1322,7 +1322,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1340,7 +1340,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
       <entry><literal>RelationMapWrite</literal></entry>
@@ -1365,12 +1365,12 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1379,7 +1379,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1388,7 +1388,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1403,7 +1403,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      <row>
       <entry><literal>SnapbuildSync</literal></entry>
       <entry>Waiting for a serialized historical catalog snapshot to reach
-       stable storage.</entry>
+       durable storage.</entry>
      </row>
      <row>
       <entry><literal>SnapbuildWrite</literal></entry>
@@ -1413,7 +1413,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      <row>
       <entry><literal>TimelineHistoryFileSync</literal></entry>
       <entry>Waiting for a timeline history file received via streaming
-       replication to reach stable storage.</entry>
+       replication to reach durable storage.</entry>
      </row>
      <row>
       <entry><literal>TimelineHistoryFileWrite</literal></entry>
@@ -1426,7 +1426,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1440,7 +1440,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
       <entry><literal>TwophaseFileWrite</literal></entry>
@@ -1448,7 +1448,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1463,7 +1463,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      <row>
       <entry><literal>WALCopySync</literal></entry>
       <entry>Waiting for a new WAL segment created by copying an existing one to
-       reach stable storage.</entry>
+       reach durable storage.</entry>
      </row>
      <row>
       <entry><literal>WALCopyWrite</literal></entry>
@@ -1472,7 +1472,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
      </row>
      <row>
@@ -1490,11 +1490,11 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      </row>
      <row>
       <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>
       <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>
      </row>
      <row>