Dear Arun, Have you had a chance to take a snapshot of the memory while ode freezes before restarting servicemix? If you investigate the memory dump you will going to have a chance to find the leak.
regards On Thu, Jan 24, 2013 at 6:22 PM, arunjolly <[email protected]> wrote: > > Hi, > > We use apache ode 1.3.3 inside Servicemix 3.3.2 for implementing our > workflows. When the load increases (ie number of flow invocations per unit > time ), ode freezes, stops processing new requests and hangs. Usullay, we > solve the issue by doing a Servicemix restart after a cleanup of the 'data' > folder. > > Initially, i thought that this was a thread problem ( lack of threads for > ode to use ). After increasing the 'thread pool size' in > ode-jbi.properties, > this problem got addressed to an extend. But still, under heavy load, ode > continues to hang. > > Further investigation, with additional logging revealed that under heavy > load, ode is unable to get enough connections to the DB > (NoManagedConnectionException ) to persist its state. Our ode persistence > configuration is INTERNAL (refer to ode-jbi.db.mode=INTERNAL ) where the > connection pool is maintained by the container/runtime itself. Efforts to > migrate it to a EXTERNAL jndi datasource configuration ( where we can > configure the connection pool parameters ) has not yet borne fruit ( Thanks > to my inability to comprehend the zillion errors that keep cropping up at > each stage :( :) ) > > So i tried the other available option, 'In-Memory execution' of my > processes. This works fine in a 'test setup' and it no longer throws the > 'NoManageConnectionException' under simulated load. > > But i have a few concerns about moving this to PROD. How different is > In-Memory execution different from 'persisted' execution ? How much more > memory will this consume ? Will this affect the reliability of my PROD > setup > by causing 'OutOfMemoryOutages'. > > We have about 10 deployed bpel processes. And the load (no. of requests > )...well it is usually minimal, but sometimes spikes up ( that's where i > need my processes to run really fast but without causing any OutOfMemory > PROD outages...hopefully :D :) :P ) > > Need your thoughts, suggestions and advice on this. > > Thanks in advance, > Arun > -- > View this message in context: > http://old.nabble.com/Apache-ODE-1.3.5---In-Memory-Execution---How-stable---tp34941139p34941139.html > Sent from the Apache Ode User mailing list archive at Nabble.com. > >
