users@glassfish.java.net

Re: EJB timer service can not automatically migration

From: <shockwave_115_at_hotmail.com>
Date: Mon, 2 Feb 2009 10:50:53 +0800

Hi
   I continue to investigate this problem by turn on the log of "Group
Management Service", I found some error logs on "FailureNotification", I
don't know if it is the root cause the timer automatic migration failure.

[#|2009-02-02T10:27:06.122+0800|INFO|sun-appserver9.1|ShoalLogger|_ThreadID=21;_ThreadName=com.sun.enterprise.ee.cms.impl.common.Router
Thread;instance2;|Sending FailureSuspectedSignals to registered Actions.
Member:instance2...|#]

[#|2009-02-02T10:27:06.174+0800|WARNING|sun-appserver9.1|javax.enterprise.system.stream.err|_ThreadID=21;_ThreadName=com.sun.enterprise.ee.cms.impl.common.Router
Thread;_RequestID=26e5a26b-7b1c-4eb9-be38-1be1c42a1ae7;|Exception in thread
"com.sun.enterprise.ee.cms.impl.common.Router Thread" |#]

[#|2009-02-02T10:27:06.176+0800|WARNING|sun-appserver9.1|javax.enterprise.system.stream.err|_ThreadID=21;_ThreadName=com.sun.enterprise.ee.cms.impl.common.Router
Thread;_RequestID=26e5a26b-7b1c-4eb9-be38-1be1c42a1ae7;|java.lang.ClassCastException:
timer.TimerFailureNotificationAction cannot be cast to
com.sun.enterprise.ee.cms.core.FailureSuspectedAction
        at
com.sun.enterprise.ee.cms.impl.common.Router.notifyFailureSuspectedAction(Router.java:299)
        at
com.sun.enterprise.ee.cms.impl.common.SignalHandler.analyzeSignal(SignalHandler.java:120)
        at
com.sun.enterprise.ee.cms.impl.common.SignalHandler.handleSignals(SignalHandler.java:103)
        at
com.sun.enterprise.ee.cms.impl.common.SignalHandler.run(SignalHandler.java:85)
        at java.lang.Thread.run(Thread.java:619)
|#]

Does it mean the callback failed to perform the timer migration when it got
the SuspectedFailureNotification?

BRs
Jason

--------------------------------------------------
From: <glassfish_at_javadesktop.org>
Sent: Sunday, January 18, 2009 1:39 PM
To: <users_at_glassfish.dev.java.net>
Subject: Re: EJB timer service can not automatically migration

> I think this is a very good question. I do not know where the automatic
> failover is done.
> Is that done by the DAS server???
> If the DAS server is down where is then the failover performed? We must be
> sure not to have a single point of failure in our system. If the DAS is
> single point of failure then the EJB timer is not feasable.
>
> I had a look at Quartz that can be performed from a Servlet.
> Is there somebody who has experience with Quartz vs EJB Timer on
> GlassFishV2?
> Where can I find more information about automatic failover of the EJB
> Timer in GlassFish?
>
> Thanks
> Jelte
> p.s. I cannot use GlassFishV3 since it is still prelude.
> [Message sent by forum member 'jeltejansons' (jeltejansons)]
>
> http://forums.java.net/jive/thread.jspa?messageID=326679
>
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