Re: streaming replication - pgsql 9.2.3

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От Jim Mercer
Тема Re: streaming replication - pgsql 9.2.3
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Msg-id 20140414215143.GA38476@reptiles.org
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Ответ на Re: streaming replication - pgsql 9.2.3  (Jason Mathis <jmathis@redzonesoftware.com>)
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On Mon, Apr 14, 2014 at 03:14:46PM -0600, Jason Mathis wrote:
> Just keep in mind that while wal archiving and replication sound very similar they are intended for two different
things.??
>
> Wal Archiving = backup/DR/PITR/standby
> Replication = High availability/reporting??

it would be nice if the documentation reflected this.

the current information i derived, basically says to do both.

i'm looking to revise my settings to:
- nullify/NOP the archive_command and restore_command
- use the slave to do a pg_dumpall as the backup

the standby node serves as a read-only slave, which allows for some
performance gains.

the standby node could be promoted to master, should the master have issues.

the backup would allow for a recovery from a catestrophic/cascading error
(ie. drop all tables).

does this make sense?

--
Jim Mercer     Reptilian Research      jim@reptiles.org    +1 416 410-5633
"He who dies with the most toys is nonetheless dead"


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