Hi Lachlan, Checking direct actions is a great idea. We also do a periodic "netstat -n | grep CLOSE_WAIT", kill the instances which have too many connections in CLOSE_WAIT state and send alert emails with additional info (mysql process list, app's intance log tail, instance's dump, open files via lsof).
Arguably, this is a bit easier to implement and maintain on a server with lots of different apps. Especially, when you cannot modify the app itself. On Mon, Jan 25, 2010 at 9:40 AM, Lachlan Deck <[email protected]> wrote: > Hi all, > > just polling for ideas / techniques people use in detecting dead instances. > Naturally when there's lots of instances running in deployment it can be hard > to know if a particular instance has locked up for some reason (and this can > sometimes have a flow on affect with the adaptor). > > Thanks. > > with regards, > -- > > Lachlan Deck > > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Webobjects-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/webobjects-dev/dfrolov%40demax.ru > > This email sent to [email protected] > _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
