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Re: Re: [COMMITTERS] pgsql: Check compulsory parameters in recovery.conf in standby_mode, per

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

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From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
To: Simon Riggs <simon@2ndQuadrant.com>
Cc: Fujii Masao <masao.fujii@gmail.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2010-04-06T07:14:22Z
Lists: pgsql-hackers 
Simon Riggs wrote:
> On Mon, 2010-04-05 at 19:29 +0100, Simon Riggs wrote:
> 
>> Looking through the code some more I note that their are two timing
>> related parameters that are hardcoded into XLogPageRead(). At the very
>> least such things should be #defines, though one of them was previously
>> configurable using pg_standby, so I would like to see them both
>> accessible to user tuning.
> 
> ...the code says "we want to react quickly when the next WAL record
> arrives" and then sleeps for 100ms.

The comment continues ", so sleep only a bit". That's in comparison to
the 5 s wait when polling the archive.

-- 
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com