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体验新版 GitCode,发现更多精彩内容 >>
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c74d3ace
编写于
3月 07, 2011
作者:
R
Robert Haas
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电子邮件补丁
差异文件
Synchronous replication doc corrections.
Thom Brown
上级
7193a90f
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2
隐藏空白更改
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2 changed file
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7 deletion
+4
-7
doc/src/sgml/config.sgml
doc/src/sgml/config.sgml
+1
-1
doc/src/sgml/high-availability.sgml
doc/src/sgml/high-availability.sgml
+3
-6
未找到文件。
doc/src/sgml/config.sgml
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c74d3ace
...
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@@ -2092,7 +2092,7 @@ SET ENABLE_SEQSCAN TO OFF;
</para>
<para>
If a standby is removed from the list of servers then it will stop
being the synchronous standby, allowing another to take it
'
s place.
being the synchronous standby, allowing another to take its place.
If the list is empty, synchronous replication will not be
possible, whatever the setting of <varname>synchronous_replication</>,
however, already waiting commits will continue to wait.
...
...
doc/src/sgml/high-availability.sgml
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c74d3ace
...
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@@ -927,7 +927,7 @@ primary_conninfo = 'host=192.168.1.50 port=5432 user=foo password=foopass'
<para>
All parameters have useful default values, so we can enable
synchronous replication easily just by setting this on the primary
synchronous replication easily just by setting this on the primary
:
<programlisting>
synchronous_replication = on
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@@ -938,7 +938,7 @@ synchronous_replication = on
even if that takes a very long time.
<varname>synchronous_replication</> can be set by individual
users, so can be configured in the configuration file, for particular
users or databases, or dynamically by applications
programs
.
users or databases, or dynamically by applications.
</para>
<para>
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@@ -1008,9 +1008,6 @@ synchronous_replication = on
<para>
You should consider that the network bandwidth must be higher than
the rate of generation of WAL data.
10% of changes are important customer details, while
90% of changes are less important data that the business can more
easily survive if it is lost, such as chat messages between users.
</para>
</sect3>
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@@ -1019,7 +1016,7 @@ synchronous_replication = on
<title>Planning for High Availability</title>
<para>
Commits made when synchronous_replication is set will wait until
at
Commits made when synchronous_replication is set will wait until
the sync standby responds. The response may never occur if the last,
or only, standby should crash.
</para>
...
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