On Fri, Apr 14, 2017 at 10:12 AM, Moreno Andreo <moreno.and...@evolu-s.it> wrote:
> Hi all, > About 2 hours and half ago, suddenly (and on the late afternoon of the > Easter Friday), customers reported failing connections to our server, or > even very slow. > After a bit of checking (that also involved server reboot) I noticed > (using top) that every process regarding postgres is using exactly the > amout I configured as work_mem (3 GB). And AFAIK it's not good. > > 30085 postgres 20 0 *3370048* 156656 153876 S 6.7 0.3 0:00.20 postgres > 29833 postgres 20 0 *3370000* 65260 62416 S 1.7 0.1 0:00.17 postgres > 29632 postgres 20 0 *3372468* 11712 6028 S 0.7 0.0 0:00.60 postgres > They are all sharing the same shared_buffers (not work_mem), and that shared space is being listed for each one of them. This is unlikely to be related to your current problems. Nothing shown in that output is alarming. > What can be happened? > What error messages are the customers getting when they fail to connect? What error messages are showing up in the server log file? What do you see in pg_stat_actvity? Cheers, Jeff
