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 PG East: http://www.enterprisedb.com/community/nav-pg-east-2010.do + If your life is a hard drive, Christ can be your backup. +