Re: Stats collector constant I/O

Hello

we had similar issue - you can try to move statfile to ramdisc

http://serverfault.com/questions/495057/too-much-i-o-generated-by-postgres-stats-collector-process

Regards

Pavel Stehule

2014-05-15 6:18 GMT+02:00 Craig James <cjames(at)emolecules(dot)com>:

> 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.
>
> Is this normal?
>
> Craig
>