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Re: Page header error on PGSQL 7.4.5

From: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
To: "Богданов В(dot)" <valeriy(at)yandex(dot)ru>
Cc: PGSQL_bugs forum <pgsql-bugs(at)postgresql(dot)org>
Subject: Re: Page header error on PGSQL 7.4.5
Date: 2008-12-18 10:33:25
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-bugs
Богданов В. wrote:
> We have PostgreSQL v. 7.4.5 and main application
> working with PGSQL via libpq. 
> Linux kernel

7.4.5 is very old. The latest minor version of the 7.4 series is 7.4.23. 
There has been a lot of bug fixes in between; you really should upgrade.

> We encounter page header error occasional occurence in 
> different tables, including system pg_xxx.
> Database is restored transactionally using restore.sql commands:
> drop table ..., create table ... , copy ... from ...
> from night dump automatically and we have no problems.
> Equipment: processor ST sh4-7100, RAM 128 MB.
> Disk partition size where the PostgreSQL is installed, is of 100 GB.
> Cluster size is about 90 MB.
> We have about a hundred of computer with similar configuration.
> On most of them the error doesn't appear for months, even when the equipment 
> is rather carelessly operated including power interruption without 
> due termination of PostgreSQL work.
> We have installed PostgreSQL 8.2.5 on several test devices, and the error didn't appear,
> but the test period was rather short. 
> After all this we are considering the necessity of moving to the latest version 
> of PostgreSQL, since the page header error also appeared under its version 8.3.1 
> with OS FreeBSD 7.0  :

That sounds very random. I suspect bad hardware, bad RAM perhaps. On how 
many computers does the error occur?

   Heikki Linnakangas

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