Re: BUG #9635: Wal sender process is using 100% CPU

From: Andres Freund <andres(at)2ndquadrant(dot)com>
To: jkoceniak(at)mediamath(dot)com
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #9635: Wal sender process is using 100% CPU
Date: 2014-05-06 22:41:39
Message-ID: 20140506224139.GD24808@awork2.anarazel.de
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Hi,

On 2014-03-19 17:13:56 +0000, jkoceniak(at)mediamath(dot)com wrote:
> Periodically throughout the day, we keep seeing the wal sender process
> utilize 100% of the CPU. We began noticing this after we added 2 new slave
> servers, going from 2 to 4 slaves. See top results and I also included our
> wal settings. Thanks!

A typical reason for this is that the standbys are connecting over
ssl. Is that the case? If so, intentionally?

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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