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Commit387ec70

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doc: Add to hot standby documentation
Document the order of changing certain settings when using hot-standbyservers. This is just a logical consequence of what was alreadydocumented, but it gives the users some more practical advice.Author: Yorick Peterse <yorickpeterse@gmail.com>Reviewed-by: Aleksander Alekseev <a.alekseev@postgrespro.ru>Reviewed-by: Robert Haas <robertmhaas@gmail.com>
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‎doc/src/sgml/high-availability.sgml

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@@ -2147,7 +2147,12 @@ LOG: database system is ready to accept read only connections
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The setting of some parameters on the standby will need reconfiguration
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if they have been changed on the primary. For these parameters,
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the value on the standby must
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be equal to or greater than the value on the primary. If these parameters
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be equal to or greater than the value on the primary.
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Therefore, if you want to increase these values, you should do so on all
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standby servers first, before applying the changes to the primary server.
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Conversely, if you want to decrease these values, you should do so on the
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primary server first, before applying the changes to all standby servers.
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If these parameters
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are not set high enough then the standby will refuse to start.
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Higher values can then be supplied and the server
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restarted to begin recovery again. These parameters are:

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