Search Postgresql Archives

Re: Locks in postgres causing system load and crash.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Sep 14, 2009 at 8:58 AM, Chris Barnes
<compuguruchrisbarnes@xxxxxxxxxxx> wrote:
> We have a situation where the database locks escalate and load causes
> problems or the system crashes in some circumstances.
>
> We have munin installed and notice that the locks (access share locks)
> climbed to 2.7k.
>
> I'm wondering what or how I can get a snapshot of the table(s) and perhaps
> the culprit that is causing this either from postgres internally or some
> other means?

The access share locks are likely a symptom, not the cause.  Look for
what they're waiting on for the lock.  It's usually an exclusive lock
of some kind that causes this problem.  We had an issue with a wayward
update with no where clause causing an issue like this a year ago.

-- 
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux