Re: the un-vacuumable table

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Andrew Hammond" <andrew(dot)george(dot)hammond(at)gmail(dot)com>
Cc: Hackers <pgsql-hackers(at)postgresql(dot)org>, "Heikki Linnakangas" <heikki(at)enterprisedb(dot)com>
Subject: Re: the un-vacuumable table
Date: 2008-07-07 19:33:10
Message-ID: 18421.1215459190@sss.pgh.pa.us
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"Andrew Hammond" <andrew(dot)george(dot)hammond(at)gmail(dot)com> writes:
>> On Thu, Jul 3, 2008 at 3:47 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>> Have you looked into the machine's kernel log to see if there is any
>>> evidence of low-level distress (hardware or filesystem level)?

> Jun 19 03:06:14 db1 kernel: mpt1: attempting to abort req
> 0xffffffff929b9f88:6812 function 0
> Jun 19 03:06:14 db1 kernel: (da1:mpt1:0:0:0): WRITE(16). CDB: 8a 0 0 0
> 0 1 6c 99 9 c0 0 0 0 20 0 0
> Jun 19 03:06:14 db1 kernel: (da1:mpt1:0:0:0): CAM Status: SCSI Status Error
> Jun 19 03:06:14 db1 kernel: (da1:mpt1:0:0:0): SCSI Status: Check Condition
> Jun 19 03:06:14 db1 kernel: (da1:mpt1:0:0:0): UNIT ATTENTION asc:29,0
> Jun 19 03:06:14 db1 kernel: (da1:mpt1:0:0:0): Power on, reset, or bus
> device reset occurred
> [etc]

> I think this is a smoking gun.

Yeah, sure looks like one. Time to replace that disk drive?

Also, I suggest filing a bug with your kernel distributor --- ENOSPC was
a totally misleading error code here. Seems like EIO would be more
appropriate. They'll probably want to see the kernel log.

regards, tom lane

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