aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--doc/src/sgml/ref/pg_basebackup.sgml10
1 files changed, 8 insertions, 2 deletions
diff --git a/doc/src/sgml/ref/pg_basebackup.sgml b/doc/src/sgml/ref/pg_basebackup.sgml
index ac442b81a5d..c5cfa87d35e 100644
--- a/doc/src/sgml/ref/pg_basebackup.sgml
+++ b/doc/src/sgml/ref/pg_basebackup.sgml
@@ -83,8 +83,14 @@ PostgreSQL documentation
</listitem>
<listitem>
<para>
- If you are using <literal>-X none</literal>, there is no guarantee that all
- WAL files required for the backup are archived at the end of backup.
+ <application>pg_basebackup</application> cannot force the standby
+ to switch to a new WAL file at the end of backup.
+ When you are using <literal>-X none</literal>, if write activity on
+ the primary is low, <application>pg_basebackup</application> may
+ need to wait a long time for the last WAL file required for the backup
+ to be switched and archived. In this case, it may be useful to run
+ <function>pg_switch_wal</function> on the primary in order to
+ trigger an immediate WAL file switch.
</para>
</listitem>
<listitem>