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From: Joshua D. Drake <jd@commandprompt.com>
To: girish R G peetle <giri.anamika0@gmail.com>
Cc: Eduardo Morras <emorrasg@yahoo.es>
Cc: pgsql-admin <pgsql-admin@postgresql.org>
Subject: Re: PostgreSQL Dump rate is too slow
Date: Thu, 15 Jan 2015 10:19:33 -0800
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On 01/15/2015 09:57 AM, girish R G peetle wrote:
> Thanks Joshua. Even if we have a long transaction running on the
> database, pg_dump shouldn't be affected right ? As it doesn't block
> readers or writers.

Correct. It does not block readers or writers, it does however block 
routine maintenance most of the time, which will cause bloat to pile up, 
making your reads (and writes) go slower as the pages become more 
fragmented.

JD

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