> Hello all, > > I've been seeing lots of this processes in my database DEALLOCATE > pdo_stmt_00000001 with idle state. >
> Executing *select * from pg_stat_activity where query like > 'DEALLOCATE%';*I can see some of them are idle for +/- 30 minutes, and
> there is one idle > for 4 days. >
> When I checked one of the pid by executing *select * from pg_stat_activity > where pid = 63882;* (for example), after few minutes (can be longer), it > became *DISCARD ALL* and after that it was removed from pg_stat_activity.
> > I was wondering if this is the normal behavior, since some of them are > idle > for +/- 30 minutes. > > I am using PostgreSQL 9.3.2 and PgBouncer. > > Any help is appreciated. > > Regards, > > -Laurentius
Yes.
9.3 - On an idle connection the value of query is the last executed query - which in this case is some form session cleanup command before returning the connection to the pool.