Re: Streaming replication status

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>
Cc: Simon Riggs <simon(at)2ndQuadrant(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Greg Smith <greg(at)2ndQuadrant(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Streaming replication status
Date: 2010-01-12 21:35:05
Message-ID: 201001122135.o0CLZ5g20395@momjian.us
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Stefan Kaltenbrunner wrote:
> >> Let's get a reasonable feature set implemented and then come back in 8.6
> >> to improve it. For example, there is no need for a special
> >> 'replication' user (just use super-user), and monitoring should be
> >> minimal until we have field experience of exactly what monitoring we
> >> need.
> >>
> >> The final commit-fest is in 5 days --- this is not the time for design
> >> discussion and feature additions. If we wait for SR to be feature
> >> complete, with design discussions, etc, we will hopelessly delay 8.5 and
> >> people will get frustrated. I am not saying we can't talk about design,
> >> but none of this should be a requirement for 8.5.
> >
> > We can't add monitoring until we know what the performance
> > characteristics are. Hmmm. And how will we know what the performance
> > characteristics are, I wonder?
>
> well I would say we do exactly how we have done in the past with other
> features - by debugging the stuff with low level tools until we fully
> understand what it really is and then we can always add more
> "accessible" stats.

Right, so what is the risk of shipping without any fancy monitoring?

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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