Re: Restart after power outage: createdb

From: Jim Nasby <jim(at)nasby(dot)net>
To: lapham(at)jandr(dot)org
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Restart after power outage: createdb
Date: 2006-09-27 05:34:06
Message-ID: B7B1E607-38F5-4274-9B0F-7C25BDB3541B@nasby.net
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On Sep 26, 2006, at 7:06 AM, Jon Lapham wrote:
> While trying to reproduce power outage restart problem I reported
> earlier, I have found something odd when pulling the plug on a VM
> during a createdb operation.
>
> If I run...
> sleep 3; echo starting; createdb bar
> ...and power off the VM while the "createdb bar" is running.
>
> Upon restart, about 50% of the time I can reproduce the following
> error message:
>
> [lapham(at)localhost ~]$ psql bar
> psql: FATAL: database "bar" does not exist
> [lapham(at)localhost ~]$ createdb bar
> createdb: database creation failed: ERROR: could not create
> directory "base/65536": File exists
> [lapham(at)localhost ~]$ createdb bar
> CREATE DATABASE
>
> So, running "createdb bar" a second time works. This is probably
> not a bug, but I thought I'd mention it anyway as it could
> potentially cause problems for people running scripts.

Could this be a timing issue? IE: are you just issuing the first
createdb bar too soon after the database has started?

I suspect this is a bug...
--
Jim Nasby jim(at)nasby(dot)net
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)

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