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From Adrian Tarau <...@daxtechnologies.com>
Subject Re: Session closed after a while(random)
Date Thu, 13 Jul 2006 21:14:08 GMT
Debugging remove is not a problem, the problem is that I need to start 
the application in debug mode and keep the IDE with a breakpoint for 
days until it happens.

I think I will recompile the ActiveMQ and dump the thread stack trace :)

Sanjiv Jivan wrote:
> You can attach your debugger to the Java process on the remote machine 
> and
> set the breakpoint on the session.close() call. Once the breakpoint it 
> hit,
> you can examine the call stack in your debugger.
>
> Use the JPDA socket JVM args when starting your Java process. Eg :  
> -Xdebug
> -Xnoagent 
> -Djava.compiler=NONE-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 
>
>
>
> On 7/13/06, Adrian Tarau <ady@daxtechnologies.com> wrote:
>>
>> That's great but this usually happens on the remote machine, after a few
>> days :)
>>
>> James Strachan wrote:
>> > Maybe try run your code in a debugger and set breakpoints in the
>> > ActiveMQSession class to see where & why the session gets closed? (The
>> > code's pretty easy to follow, its a relatively simple class).
>> >
>> >
>> > On 7/13/06, Adrian Tarau <ady@daxtechnologies.com> wrote:
>> >> James, do you want the sources or can you recommend me some 
>> actions? To
>> >> create the session all the time, not to cache it?
>> >>
>> >> Adrian Tarau wrote:
>> >> > Ok, so who close the session? :)
>> >> >
>> >> > James Strachan wrote:
>> >> >> Sorry I forgot about that :)
>> >> >>
>> >> >> The only time a VM broker is shut down is explicitly via 
>> application
>> >> >> code or a shutdown handler.
>> >> >>
>> >> >> On 7/13/06, Adrian Tarau <ady@daxtechnologies.com> wrote:
>> >> >>> I use vm connector so no connection problems should be involved,
>> >> right?
>> >> >>>
>> >> >>> James Strachan wrote:
>> >> >>> > BTW are you using auto-reconnect? It could be that the

>> socket is
>> >> >>> > terminated due to some network issue?
>> >> >>> >
>> >> >>> >
>> >> >>>
>> >>
>> http://incubator.apache.org/activemq/how-can-i-support-auto-reconnection.html 
>>
>> >>
>> >> >>>
>> >> >>> >
>> >> >>> >
>> >> >>> > On 7/13/06, Adrian Tarau <ady@daxtechnologies.com>
wrote:
>> >> >>> >> I made a search for "close" in the source code and
except from
>> >> >>> produces,
>> >> >>> >> consumers and inputstream and outputstream I don't
close the
>> >> >>> connection
>> >> >>> >> or session, except on the JVM shutdown(Thread hook).
>> >> >>> >>
>> >> >>> >> I can provide you(private - not on the mailing list)
the
>> >> source code
>> >> >>> >> because this is very annoying.
>> >> >>> >> Thanks.
>> >> >>> >>
>> >> >>> >> James Strachan wrote:
>> >> >>> >> > Apart from inactivity timeouts on the transport
layer, we
>> >> >>> generally
>> >> >>> >> > don't close sessions. Are you sure nothing in
your 
>> application
>> >> >>> code is
>> >> >>> >> > trying to close the session?
>> >> >>> >> >
>> >> >>> >> > On 7/13/06, Adrian Tarau <ady@daxtechnologies.com>
wrote:
>> >> >>> >> >> I have this issue for some time with ActiveMQ
4.0 and 
>> 4.0.1.
>> >> >>> >> >>
>> >> >>> >> >> I use vm transport and create one session
used to 
>> produce and
>> >> >>> consume
>> >> >>> >> >> messages. Everything works fine, days in
a row, until it
>> >> start to
>> >> >>> >> throw
>> >> >>> >> >> exception that "Session is closed". There
are any watch
>> >> dogs that
>> >> >>> >> close
>> >> >>> >> >> sessions after a while, based on some criteria?
>> >> >>> >> >>
>> >> >>> >> >> I couldn't find any rule, when or why it
happens.
>> >> >>> >> >> Should I create the session all the time
- I understood  is
>> >> time
>> >> >>> >> >> consuming and it should be safe to cache
it.
>> >> >>> >> >>
>> >> >>> >> >> Thanks.
>> >> >>> >> >>
>> >> >>> >> >> *javax.jms.IllegalStateException: The Session
is closed
>> >> >>> >> >>     at
>> >> >>> >> >>
>> >> >>> >>
>> >> >>>
>> >> org.apache.activemq.ActiveMQSession.checkClosed(ActiveMQSession.java
>> :577)
>> >>
>> >> >>>
>> >> >>> >>
>> >> >>> >> >>
>> >> >>> >> >>     at
>> >> >>> >> >>
>> >> >>> >>
>> >> >>>
>> >> 
>> org.apache.activemq.ActiveMQSession.createConsumer(ActiveMQSession.java
>> :799)*
>> >>
>> >> >>>
>> >> >>> >>
>> >> >>> >> >>
>> >> >>> >> >>
>> >> >>> >> >>
>> >> >>> >> >
>> >> >>> >> >
>> >> >>> >>
>> >> >>> >>
>> >> >>> >
>> >> >>> >
>> >> >>>
>> >> >>>
>> >> >>
>> >> >>
>> >> >
>> >>
>> >>
>> >
>> >
>>
>>
>


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