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Re: starting postgres with an empty px_xlog folder

From: Craig Ringer <ringerc(at)ringerc(dot)id(dot)au>
To: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: mbroers(at)gmail(dot)com, pgsql-admin(at)postgresql(dot)org
Subject: Re: starting postgres with an empty px_xlog folder
Date: 2012-06-24 07:15:40
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
On 06/24/2012 03:45 AM, Kevin Grittner wrote:
> As previously stated, make sure you understand how this happened, so
> you can make sure it doesn't happen again.  The contents of the
> pg_xlog directory are an integral part of your database cluster.

People not backing up pg_xlog, deleting its contents, etc happens often 
enough that I wonder if it should have a prominent 00_README or 
00_WARNING_DONT_DELETE file created by initdb - or simply be renamed to 
something scarier like "base_txrecords".

The annoyance of a readme is that it'd need translation.

People are used to logs being disposable. Anyone who's been responsible 
for a database should ideally know better than to assume that 
*transation* logs are disposable, but everyone has to learn sometime, 
and not everybody does so by reading TFM (unfortunately).

Craig Ringer

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