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Commitf94c6f9

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Minor fixes for high availability documentation.
Erik Rijkers and me
1 parent76dbb46 commitf94c6f9

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‎doc/src/sgml/high-availability.sgml

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@@ -873,7 +873,7 @@ primary_conninfo = 'host=192.168.1.50 port=5432 user=foo password=foopass'
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might indicate that the master server is under heavy load, while
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differences between <literal>sent_location</> and
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<function>pg_last_xlog_receive_location</> on the standby might indicate
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network delay, or that thethestandby is under heavy load.
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network delay, or that the standby is under heavy load.
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</para>
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</sect3>
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@@ -952,7 +952,7 @@ synchronous_replication = on
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If the standby is the first matching standby, as specified in
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<varname>synchronous_standby_names</> on the primary, the reply
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messages from that standby will be used to wake users waiting for
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confirmation the commit record has been received. These parameters
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confirmationthatthe commit record has been received. These parameters
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allow the administrator to specify which standby servers should be
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synchronous standbys. Note that the configuration of synchronous
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replication is mainly on the master.
@@ -1002,10 +1002,10 @@ synchronous_replication = on
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<para>
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With synchronous replication options specified at the application level
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(on the primary) we can offersync rep for the most important changes,
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without slowing down the bulk of the total workload. Application level
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options are an important and practical tool for allowing the benefits of
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synchronous replication for high performance applications.
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(on the primary) we can offersynchronous replication for the most
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important changes,without slowing down the bulk of the total workload.
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Application leveloptions are an important and practical tool for allowing
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the benefits ofsynchronous replication for high performance applications.
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</para>
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<para>
@@ -1029,7 +1029,7 @@ synchronous_replication = on
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your last remaining sync standby. This can be achieved by naming multiple
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potential synchronous standbys using <varname>synchronous_standby_names</>.
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The first named standby will be used as the synchronous standby. Standbys
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listed after this willtakeover the role of synchronous standby if the
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listed after this willtake over the role of synchronous standby if the
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first one should fail.
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</para>
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@@ -1039,7 +1039,7 @@ synchronous_replication = on
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the lag between standby and primary reaches zero for the first time
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we move to real-time <literal>STREAMING</> state.
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The catch-up duration may be long immediately after the standby has
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been created. If the standby isshutdown, then the catch-up period
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been created. If the standby isshut down, then the catch-up period
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will increase according to the length of time the standby has been down.
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The standby is only able to become a synchronous standby
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once it has reached <literal>STREAMING</> state.
@@ -1060,12 +1060,13 @@ synchronous_replication = on
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<para>
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If you really do lose your last standby server then you should disable
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<varname>synchronous_standby_names</> and restart the primary server.
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<varname>synchronous_standby_names</> and reload the configuration file
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on the primary server.
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</para>
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<para>
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If the primary is isolated from remaining standbysevers you should
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failover to the best candidate of those other remaining standby servers.
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If the primary is isolated from remaining standbyservers you should
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fail over to the best candidate of those other remaining standby servers.
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</para>
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<para>
@@ -1130,7 +1131,7 @@ synchronous_replication = on
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and might stay down. To return to normal operation, a standby server
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must be recreated,
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either on the former primary system when it comes up, or on a third,
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possibly new, system. Once complete the primary and standby can be
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possibly new, system. Once complete, the primary and standby can be
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considered to have switched roles. Some people choose to use a third
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server to provide backup for the new primary until the new standby
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server is recreated,
@@ -1155,8 +1156,7 @@ synchronous_replication = on
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<command>pg_ctl promote</> to fail over, <varname>trigger_file</> is
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not required. If you're setting up the reporting servers that are
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only used to offload read-only queries from the primary, not for high
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availability purposes, you don't need to exit recovery in the standby
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and promote it to a master.
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availability purposes, you don't need to promote it.
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</para>
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</sect1>
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