Re: Transaction ID wrap limit is log entries

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Armand du Plessis <adp(at)bank(dot)io>
Cc: "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Transaction ID wrap limit is log entries
Date: 2013-05-19 16:08:33
Message-ID: CA+U5nMKfm0xrMgy_ND=1LKBrYUCC0bU_g_=V7m_Jpa8zDe=scg@mail.gmail.com
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On 19 May 2013 13:54, Armand du Plessis <adp(at)bank(dot)io> wrote:

> We started seeing 1000s of messages like the ones below in our logs starting
> last night. There's been no changes but performance has dropped
> significantly.

> Any ideas what would be causing this?

The database has not been issuing VACUUMs on some or all of the
relations, so the system needs to issue "anti-transactional
wraparound" VACUUMs.

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

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