[pgpool-general: 1530] Re: Mysterious Load Spikes

Quentin Hartman qhartman at direwolfdigital.com
Thu Mar 28 00:24:49 JST 2013

On Wed, Mar 27, 2013 at 9:15 AM, Lonni J Friedman <netllama at gmail.com>wrote:

> FWIW, I also see roughly the same behavior, although my environment is
> somewhat different than yours.  Previously my pgpool server was
> running on RHEL6, however it was migrated to Fedora17 (without
> changing the pgpool version).  Before the migration the load on the
> server was typically less than 1.00.  Since migrating the load average
> is 30+ (with spikes up to 60 quite often).  Yet there's nothing
> obvious causing the load.  I'm certain something in pgpool is causing
> this behavior, because the load drops to 0 during the rare times when
> we need to stop pgpool for maintenance.

Thanks for the quick reply Lonni. I'm glad to hear that it's not a problem
limited to Ubuntu. Like you I suspect it has something to do with the 3.x
kernel series. I'm going to be doing some experimentation soon to try to
isolate and eliminate this problem. I'll update this thread with my

If anyone else is interested in coordinating efforts, I'd be glad for the

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