Re: WAL shipping question

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От SHARMILA JOTHIRAJAH
Тема Re: WAL shipping question
Дата
Msg-id 672978.2169.qm@web31110.mail.mud.yahoo.com
обсуждение исходный текст
Ответ на WAL shipping question  (SHARMILA JOTHIRAJAH <sharmi_jo@yahoo.com>)
Ответы Re: WAL shipping question  (Erik Jones <erik@myemma.com>)
Re: WAL shipping question  (Greg Smith <gsmith@gregsmith.com>)
Список pgsql-general


> This basically archives the data in the primary server itself...right!!!
> But how can I set up continuous archiving from primary to a directory
> (WAL archive directory) on the stand-by server ?

>>The closest thing to a worked out example of how to do this I'm aware of
>>is at http://archives.postgresql.org/sydpug/2006-10/msg00001.php

I tried this example
I have the primary and standby server setup. The primary server is archiving the wal segments in the standby server's directory. My question is that, as per that example in step 15 the standby server should gives messages in its log whenever some WAL activity is triggered in the master. I see the archive directory in standby server getting filled up, but there are no log messages generated. Whay? What am I missing here?

Also what does step 16 mean in that above example?
" To initiate a failover from the master to the slave, create the 'trigger file':
touch ~/pg82demo/trigger
This should immediately cause the slave to finish processing archived
segments, exitrecovery mode, and come up ready for use "


Does the wal archives are applied to the standby server at this point and it has all the
contents(tables,indexes,tabledata etc) at this point?

Thanks
sharmila






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