Hi 2015-12-22 8:59 GMT+01:00 Artem Tomyuk <ad...@leboutique.com>:
> Hi. > > I've noticed huge decrease in performance. > During this in htop i see a lot (200 - 300) of connections in state > "startup", each of them eats 3-3% of CPU time. This processes are not > visible in pg_stat_activity so i cant understand what they are doing, and i > cant kill them. I cant see the bottleneck in Disk IO to. The logs of > postgres says nothing to. I am confused..... > What can be the cause of huge amount of "startup" connections.... > Maybe its better to start use connection pooler such as pgbouncer? > Thanks a lot. > What is your max_connections? Can you ran "perf top" ? What is there. Too high number can enforce system overloading. You cannot to see these connections in pg_stat_activity because the process in this state isn't fully initialized. There was lot of bugfix releases after 9.1.2 - currently there is PostgreSQL 9.2.19. Try to upgrade first. Regards Pavel > > PS. > Server config is: > 2 * Intel Xeon 2660 CPU with 64 gigs of RAM. > Hardware RAID10. > Centos 6.6, PostgreSQL 9.1.2 > > > >
