On 03/09/10 11:16, Pavel Stehule wrote:
> 2010/8/31 Tom Lane<tgl(at)sss(dot)pgh(dot)pa(dot)us>:
>> Pavel Stehule<pavel(dot)stehule(at)gmail(dot)com>  writes:
>>> there is a dump from 8KB files
>>
>> Well, those certainly look like tables/indexes not temp files.
>> So we can rule out one theory.
>>
>> You're *certain* these aren't referenced from pg_class.relfilenode
>> of any of the databases in the server?
>
> I have a info, so these files are not in pg_class.relfilenode. More -
> these files are three months old, and in this time was server two
> times restarted.

Maybe they're tables that were created in a transaction, but the process 
crashed hard before committing? Like:

BEGIN;
CREATE TABLE foo (...);
COPY foo FROM ...;
kill -9 postgres

That will leave behind a file like that. Do you do something like that 
in the application?

-- 
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com

In response to

• Re: thousand unrelated data files in pg_default tablespace at 2010-09-03 08:16:12 from Pavel Stehule

Responses

• Re: thousand unrelated data files in pg_default tablespace at 2010-09-03 12:40:47 from Pavel Stehule

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Next:	From: Heikki Linnakangas	Date: 2010-09-03 11:19:20
	Subject: Streaming a base backup from master
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	Subject: Re: Interruptible sleeps (was Re: CommitFest 2009-07: Yay, Kevin! Thanks, reviewers!)