Re: Hot Standby query cancellation and Streaming Replication integration

Bruce Momjian <bruce@momjian.us>

From: Bruce Momjian <bruce@momjian.us>
To: Dimitri Fontaine <dfontaine@hi-media.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Greg Stark <gsstark@mit.edu>, Josh Berkus <josh@agliodbs.com>, pgsql-hackers@postgresql.org
Date: 2010-02-26T22:20:37Z
Lists: pgsql-hackers
Dimitri Fontaine wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > Doesn't the system already adjust the delay based on the length of slave
> > transactions, e.g. max_standby_delay.  It seems there is no need for a
> > user switch --- just max_standby_delay really high.
> 
> Well that GUC looks like it allows to set a compromise between HA and
> reporting, not to say "do not ever give the priority to the replay while
> I'm running my reports". At least that's how I understand it.

Well, if you set it high, it effectively is that.

-- 
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com
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