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Make GUC wal_sender_timeout user-settable

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Being able to use a value that can be changed on a connection basis is
useful with clusters distributed geographically, and makes failure
detection more flexible.  A note is added in the documentation about the
use of "options" in primary_conninfo, which can be hard to grasp for
newcomers with the need of two single quotes when listing a set of
parameters.

Author: Tsunakawa Takayuki
Reviewed-by: Masahiko Sawada, Michael Paquier
Discussion: https://postgr.es/m/0A3221C70F24FB45833433255569204D1FAAD3AE@G01JPEXMBYT05
This commit is contained in:
Michael Paquier
2018-09-22 15:23:59 +09:00
parent 4f3b38fe2b
commit db361db2fc
3 changed files with 10 additions and 6 deletions
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doc/src/sgml/high-availability.sgml
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@@ -738,7 +738,7 @@ protocol to make nodes agree on a serializable transactional order.
A simple example of a <filename>recovery.conf</filename> is:
<programlisting>
standby_mode = 'on'
primary_conninfo = 'host=192.168.1.50 port=5432 user=foo password=foopass'
primary_conninfo = 'host=192.168.1.50 port=5432 user=foo password=foopass options=''-c wal_sender_timeout=5000'''
restore_command = 'cp /path/to/archive/%f %p'
archive_cleanup_command = 'pg_archivecleanup /path/to/archive %r'
</programlisting>