I am looking into this...
Will reply shortly.
Shreedhar Ganapathy wrote:
> Hi Jason
> I have cc'd Mahesh and the users list for others benefit. Mahesh,
> could you help Jason figure this out?
>
> Thanks
> Shreedhar
>
> shockwave_115_at_hotmail.com wrote:
>> Hi
>> I have tested it again:
>>
>> environment:
>> Windows X86 32bit
>> jdk 1.6
>> glassfish 9.1
>> two instances of two agents on one machine
>>
>> operation:
>> 1 deploy timer service EJB on AS
>> timer service active on instance1
>> 2 kill agent1 then kill instance1
>> timer service can not automatically migrate from instance1 to
>> instance2
>>
>> Then I add my owner "TimerFailureSuspectedAction" into
>> GroupManagementService to migrate timer service, and it is OK.
>>
>>
>> ************************************************************************************************************************************
>>
>> String clusterName = "cluster1";
>> try {
>> GroupManagementService gms =
>> GMSFactory.getGMSModule(clusterName );
>> FailureNotificationActionFactory
>> myFailureNotificationAction = new
>> TimerFailureNotificationActionFactory();
>> FailureSuspectedActionFactory myFFailureSuspectedAction
>> = new TimerFailureSuspectedActionFactory();
>> gms.addActionFactory(myFailureNotificationAction);
>> gms.addActionFactory(myFFailureSuspectedAction);
>> GroupHandle groupHanlder = gms.getGroupHandle();
>> List<String> nodeList = groupHanlder.getAllCurrentMembers();
>> for(String node : nodeList)
>> {
>> System.out.println("We have Node: " + node);
>> if(groupHanlder.isMemberAlive(node))
>> {
>> System.out.println("We have Alive Node: " + node );
>> }
>> else
>> {
>> System.out.println("We have dead Node: " + node );
>> }
>> }
>> } catch (GMSNotEnabledException e1) {
>> // TODO Auto-generated catch block
>> e1.printStackTrace();
>> } catch (GMSNotInitializedException e1) {
>> // TODO Auto-generated catch block
>> e1.printStackTrace();
>> } catch (GMSException e1) {
>> // TODO Auto-generated catch block
>> e1.printStackTrace();
>> }
>>
>> ************************************************************************************************************************************
>>
>>
>> public class TimerFailureSuspectedAction implements
>> FailureSuspectedAction{
>>
>> @Override
>> public void consumeSignal(Signal signal) throws ActionException {
>> System.out.println("the group to which the member involved in
>> the Signal belonged to: " + signal.getGroupName());
>> System.out.println("the identity token of the member that
>> caused this signal to be generated: " + signal.getMemberToken());
>> DistributedEJBService timerService =
>> DistributedEJBServiceFactory.getDistributedEJBService();
>> String serverId = signal.getMemberToken();
>> timerService.migrateTimers(serverId );
>> }
>>
>> }
>>
>> ************************************************************************************************************************************
>>
>>
>>
>> Actually we don't want to implement the auto-migration ourselves, but
>> we can not fix the problem, do you have any clue of it?
>>
>>
>> BRs
>> //Jason
>>
>> --------------------------------------------------
>> From: "Shreedhar Ganapathy" <Shreedhar.Ganapathy_at_Sun.COM>
>> Sent: Monday, February 02, 2009 1:13 PM
>> To: <users_at_glassfish.dev.java.net>
>> Subject: Re: EJB timer service can not automatically migration
>>
>>> Hi Jason
>>> Wrote a separate note to you on the shoal user mailing list. In
>>> addition to that could you share exact steps to reproduce this problem?
>>>
>>> Thanks
>>> Shreedhar
>>>
>>> shockwave_115_at_hotmail.com wrote:
>>>> 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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>>>>>
>>>>>
>>>>
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>>>>
>>>
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>>>
>
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