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| author | Bruce Momjian <bruce@momjian.us> | 2014-04-16 15:06:17 -0400 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2014-04-16 15:06:49 -0400 |
| commit | 9c5334650085d441324e0f4fd9f8db12657b25c7 (patch) | |
| tree | fc5b2e26885b39b254f8a4cd6b20cba4a11044e1 | |
| parent | cbb5e23bfa92973bddf11935448a9d42c32f7d42 (diff) | |
| download | postgresql-9c5334650085d441324e0f4fd9f8db12657b25c7.tar.gz postgresql-9c5334650085d441324e0f4fd9f8db12657b25c7.zip | |
docs: make max_wal_senders higher to handle disconnects
Document abrupt streaming client disconnection might leave slots in use,
so max_wal_senders should be slightly higher than needed to allow for
immediate reconnection.
Per mention by Magnus
| -rw-r--r-- | doc/src/sgml/config.sgml | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 1c25ded436d..17ef25b5f6a 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -2388,7 +2388,11 @@ include 'filename' processes). The default is zero, meaning replication is disabled. WAL sender processes count towards the total number of connections, so the parameter cannot be set higher than - <xref linkend="guc-max-connections">. This parameter can only + <xref linkend="guc-max-connections">. Abrupt streaming client + disconnection might cause an orphaned connection slot until + a timeout is reached, so this parameter should be set slightly + higher than the maximum number of expected clients so disconnected + clients can immediately reconnect. This parameter can only be set at server start. <varname>wal_level</> must be set to <literal>archive</> or higher to allow connections from standby servers. |