On May 14, 2014 9:19 PM, "Craig James" <cjames@emolecules.com> wrote:
>
> Day and night, the postgres stats collector process runs at about 20 MB/sec output. vmstat shows this:
>
> $ vmstat 2
> procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
> r b swpd free buff cache si so bi bo in cs us sy id wa
> 0 0 55864 135740 123804 10712928 4 6 445 2642 0 0 5 1 92 2
> 1 0 55864 134820 123804 10713012 0 0 0 34880 540 338 1 1 98 0
> 0 0 55864 135820 123812 10712896 0 0 0 20980 545 422 1 1 98 0
>
> iotop(1) shows that it's the stats collector, running at 20 MB/sec.
This is normal for 9.2 and below if you have hundreds of databases in the cluster.
Cheers,
Jeff