Yes, both Explain and Explain Analyse are taking time. As you suggested I set the lock parameters, but no locks are observed. Also checked pg_stat_activity and none of the sessions are either waiting are blocked. I agree we must upgrade to latest version (9.1.10), but unfortunately kind of resources (not only man power) we are having it is going to be extremely challenging task for us. Of course all other options are not working then we have to take the tough route. No choice. I am also working with sys admin to rule any issues at the OS or VM level. Thanks. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Hot-Standby-performance-issue-tp5774673p5775332.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
