pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Dan Harris <fbsd@drivefaster.net>
To: PostgreSQL Performance <pgsql-performance@postgresql.org>
Subject: vacuum full seems to hang on very small table
Date: Tue, 04 Apr 2006 08:59:47 -0600
Message-ID: <443289E3.7020801@drivefaster.net> (raw)

I have a table with 1 live row that I found has 115000 dead rows in it ( 
from a testing run ).  I'm trying to VACUUM FULL the table and it has 
run for over 18 hours without completion.  Considering the hardware on 
this box and the fact that performance seems reasonable in all other 
aspects, I'm confused as to why this would happen.  The database other 
than this table is quite large ( 70 gigs on disk ) and I would expect to 
take days to complete but I just did 'vacuum full table_stats'.  That 
should only do that table, correct?  I'm running 8.0.3.

                  Table "public.table_stats"
       Column        |            Type             | Modifiers
---------------------+-----------------------------+-----------
 count_cfs           | integer                     |
 count_ncfs          | integer                     |
 count_unitactivity  | integer                     |
 count_eventactivity | integer                     |
 min_eventmain       | timestamp without time zone |
 max_eventmain       | timestamp without time zone |
 min_eventactivity   | timestamp without time zone |
 max_eventactivity   | timestamp without time zone |
 geocoding_hitrate   | double precision            |
 recent_load         | timestamp without time zone |
 count_eventmain     | integer                     |


This is the table structure.

Any ideas where to begin troubleshooting this?

Thanks.




view thread (3+ messages)  latest in thread

Message-ID: <443289E3.7020801@drivefaster.net>
Permalink:  ../443289E3.7020801@drivefaster.net/
Also on:    postgresql.org/message-id/443289E3.7020801@drivefaster.net

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: fbsd@drivefaster.net
  Subject: Re: vacuum full seems to hang on very small table
  In-Reply-To: <443289E3.7020801@drivefaster.net>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox