Re: Hot standby 9.2.6 -> 9.2.6 PANIC: WAL contains references to invalid pages

From: Andres Freund <andres(at)2ndquadrant(dot)com>
To: Sergey Konoplev <gray(dot)ru(at)gmail(dot)com>
Cc: Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, pgsql-bugs <pgsql-bugs(at)postgresql(dot)org>, Maxim Boguk <maxim(dot)boguk(at)gmail(dot)com>, Максим Панченко <Panchenko(at)gw(dot)tander(dot)ru>, Сизов Сергей Павлович <sizov_sp(at)gw(dot)tander(dot)ru>, Tomonari Katsumata <katsumata(dot)tomonari(at)po(dot)ntts(dot)co(dot)jp>
Subject: Re: Hot standby 9.2.6 -> 9.2.6 PANIC: WAL contains references to invalid pages
Date: 2013-12-20 20:09:31
Message-ID: 20131220200931.GA31909@alap2.anarazel.de
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On 2013-12-20 12:01:55 -0800, Sergey Konoplev wrote:
> For me it looks like something completely different from the
> Tomonari's bug. I does not have problems with restarting and it always
> has something to do with vacuum. The error message is the same every
> time it breaks down:

Well, you didn't mention that it wasn't related to restarts before. You
said that you just had re-cloned the standby, so assuming a restart
isn't unreasonable.

> Also, the issue is reproducible on the production site of a big
> enterprise company and it is always a long lasting pain to negotiate
> and deploy even a little patch. So I would like to ask you to review
> this issue more carefully before I start the negotiation process,
> please.

I have to say, attitude-wise, I find that statement a bit
problematic. You're working with the community here, not somebody you're
paying.

Greetings,

Andres Freund

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

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