| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Alessandro Gagliardi <alessandro(at)path(dot)com> |
| Cc: | Peter van Hardenberg <pvh(at)pvh(dot)ca>, Steve Crawford <scrawford(at)pinpointresearch(dot)com>, Andy Colson <andy(at)squeakycode(dot)net>, Thom Brown <thom(at)linux(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: set autovacuum=off |
| Date: | 2012-03-21 14:32:26 |
| Message-ID: | CA+TgmoZTKY+MpD6tXHOYN5QMagcNJsR_DBJ+fWPqU-voDrkb=Q@mail.gmail.com |
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| Lists: | pgsql-performance |
On Thu, Feb 23, 2012 at 3:28 PM, Alessandro Gagliardi
<alessandro(at)path(dot)com> wrote:
> I'm unable to make sense of pg_locks. The vast majority are
> locktype='transactionid', mode='ExclusiveLock', granted=t. There are some
> 'relation' locks with mode='RowExclusiveLock' and fewer with
> 'AccessShareLock'. I have no idea what I should be looking for here.
If you have lock contention, you'll see locks with granted='f', at
least from time to time. Those are the ones you want to worry about.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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