Re: Function to kill backend
Rod Taylor <pg@rbt.ca>
From: Rod Taylor <pg@rbt.ca>
To: Josh Berkus <josh@agliodbs.com>
Cc: Bruce Momjian <pgman@candle.pha.pa.us>, Tom Lane <tgl@sss.pgh.pa.us>, Magnus Hagander <mha@sollentuna.net>, PostgreSQL Development <pgsql-hackers@postgresql.org>
Date: 2004-04-06T19:59:50Z
Lists: pgsql-hackers
On Tue, 2004-04-06 at 15:10, Josh Berkus wrote: > Bruce, > > > OK, you have a runaway report. You want to stop it. Query cancel is > > only going to stop the current query, and once you do that the next > > query is fed in so there is no way to actually stop the report, > > especially if the report is not being run from the same machine as the > > server (you can't kill the report process). How do you stop it without > > SIGTERM? You don't want to shut down the postmaster. > > Hmmm ... but, at least in the case of my apps, killing the PG connection > wouldn't fix things. Most apps I work on are designed to detect connection > failure and reconnect. I suspect that most platforms that use connection > pooling are the same. So your case would only work if you actually blocked > all connections from that host -- not a capability we'd discussed. That would be a likely second step (go into pg_hba to block). But you still have to get rid of the idlers at some point.