From: | Andrew Sullivan <andrew(at)libertyrms(dot)info> |
---|---|
To: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: index file bloating still in 7.4 ? |
Date: | 2003-10-21 10:56:56 |
Message-ID: | 20031021105655.GB9837@libertyrms.info |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-performance |
On Mon, Oct 20, 2003 at 05:42:52PM -0400, Tom Lane wrote:
> hold of these dead rows instead of recycling them. I suspect you have
> a client process somewhere that is holding an open transaction for a
> long time ... probably not doing anything, just sitting there with an
> unclosed BEGIN ...
Which could be because you're doing something nasty with one of the
"autocommit=off" clients. Most of the client libraries implement
this by doing "commit;begin;" at every commit. This means you have
way more idle in transaction connections than you think. Look in
pg_stat_activity, assuming you've turned on query echoing.
A
--
----
Andrew Sullivan 204-4141 Yonge Street
Afilias Canada Toronto, Ontario Canada
<andrew(at)libertyrms(dot)info> M2P 2A8
+1 416 646 3304 x110
From | Date | Subject | |
---|---|---|---|
Next Message | Harry Broomhall | 2003-10-21 11:40:26 | Re: Performance weirdness with/without vacuum analyze |
Previous Message | Josh Berkus | 2003-10-21 00:55:12 | SRFs ... no performance penalty? |