Skip site navigation (1) Skip section navigation (2)

Re: Patch to remove sort files, temp tables, unreferenced files

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: Patch to remove sort files, temp tables, unreferenced files
Date: 2001-05-30 23:28:03
Message-ID: 200105302328.f4UNS3B22257@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-patches
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> >> No we don't.  I'm not convinced that we have a problem at all anymore.
> 
> > We already know that crashes will leave these files around, and as we
> > start using file versioning for CLUSTER and DROP COLUMN, I expect those
> > orphaned files to continue.
> 
> I don't.  The intention (not yet implemented, but Vadim's referred to it
> repeatedly) is that relation file creation/deletion will be logged in
> WAL, and so it can be redone or undone after a crash.  That seems a much
> more secure approach than anything you've proposed in this thread.

I prefer a WAL cleanup myself, especially if it can be done for 7.2, but
how do we do that without fsync'ing the WAL every time we create a file?

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

In response to

Responses

pgsql-patches by date

Next:From: Tom LaneDate: 2001-05-31 00:32:31
Subject: Re: Patch to remove sort files, temp tables, unreferenced files
Previous:From: Don BaccusDate: 2001-05-30 22:56:35
Subject: Re: Support for %TYPE in CREATE FUNCTION

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group