On Dec 13, 2007 3:43 PM, Tena Sakai <tsakai@xxxxxxxxxxxxxx> wrote: > > My next question: > What would be a good way to tell if some > query is hung? That would really depend on what you mean by hung. Just running a really long time, or waiting for a lock that some other session is not will to commit / rollback like above? I take it you just mean long running queries. You can do a couple of things. You can set the value for statement_timeout and any statement that takes over that amount of time will generate a timeout and you then log it in the logs. You can use pg_stat_activity to see how long a query's been running. Something like select datname, usename, current_query, waiting, now() - query_start from pg_stat_activity order by query_start; can show you how long each query has been running. ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster
