Re: pg_standby stuck on a wal file size <16MB

From: Vlad Kosilov <vkosilov(at)contigo(dot)com>
To: Ioannis Tambouras <ioannis(at)akroninc(dot)net>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: pg_standby stuck on a wal file size <16MB
Date: 2008-05-18 00:18:42
Message-ID: 482F75E2.8080206@contigo.com
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is this wrong of me to expect that postgres would not make a wal file
available to archive_command unless it was completely ready to let go of
that wal file?
thanks,
V.
Ioannis Tambouras wrote:
>> archive_command = 'test ! -f /usr/local/wal_archive_local/%f && cp %p
>> /usr/local/wal_archive_local/%f'
>>
>
> The archive command tests if the wal segment exists and is a file,
> but it does not check if the file is still being written. You need to
> copy the file after writing has finished (it reached 16777216 bytes).
> I don't have sources of pg_standby near me, but I remember in the
> C code checks for complete segment sizes.
>
>
> thanks
> Ioannis Tambouras
>
>
>

--
________________________________________
Vladimir (Vlad) Kosilov
Senior Systems Administrator
Contigo Systems Inc.
604.683.3106 (phone)
604.648.9886 (fax)
vkosilov(at)contigo(dot)com
www.contigo.com
________________________________________

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