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1 parent aa139fe commit dad956cCopy full SHA for dad956c
postgresql/doc/src/sgml/high-availability.sgml
@@ -1987,7 +1987,7 @@ ____________________________________________________________________________-->
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<para>
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基于优先的多同步后备的<varname>synchronous_standby_names</varname>示例为:
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<programlisting>
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-synchronous_standby_names = '2 (s1, s2, s3)'
+synchronous_standby_names = 'FIRST 2 (s1, s2, s3)'
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</programlisting>
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在这个例子中,如果有四个后备服务器<literal>s1</literal>、<literal>s2</literal>、<literal>s3</literal>和<literal>s4</literal>在运行,两个后备服务器<literal>s1</literal>和<literal>s2</literal>将被选中为同步后备,因为它们出现在后备服务器名称列表的前部。<literal>s3</literal>是一个潜在的同步后备,当<literal>s1</literal>或<literal>s2</literal>中的任何一个失效, 它就会取而代之。<literal>s4</literal>则是一个异步后备因为它的名字不在列表中。
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</para>
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