| From: | Markus Schaber <schabi(at)logix-tt(dot)com> |
|---|---|
| To: | pgsql-performance(at)postgresql(dot)org |
| Cc: | Matteo Sgalaberni <sgala(at)sgala(dot)com> |
| Subject: | Re: database bloat,non removovable rows, slow query etc... |
| Date: | 2006-09-01 16:09:31 |
| Message-ID: | 44F85B3B.6080106@logix-tt.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
Hi, Tom and Matteo,
Tom Lane wrote:
> Matteo Sgalaberni <sgala(at)sgala(dot)com> writes:
>> 22 daemons that have a persistent connection to this database(all
>> connection are in "idle"(no transaction opened).
>
> You may think that, but you are wrong.
>
>> INFO: "cliente": found 0 removable, 29931 nonremovable row versions in 559 pages
>> DETAIL: 29398 dead row versions cannot be removed yet.
>
> The only way the above can happen is if there are some fairly old open
> transactions. Looking in pg_stat_activity might help you identify the
> culprit(s).
Another possibility might be an outstanding two-phase-commit transaction.
HTH,
Markus
--
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf. | Software Development GIS
Fight against software patents in EU! www.ffii.org www.nosoftwarepatents.org
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Guillaume Cottenceau | 2006-09-01 17:00:52 | increasing shared buffers: how much should be removed from OS filesystem cache? |
| Previous Message | Patrick Hatcher | 2006-09-01 15:33:34 | Re: database bloat,non removovable rows, slow query etc... |