Hi Emanuele,
I have checked in the fix for the false failure issue. Please update
your workspace and try out. Please let us know if it works for you or if
there still are some problems that need to be fixed.
Thanks
Sheetal
Emanuele wrote:
> I followed exactly Sheetal's code and the problems still remain.
> It seems a little strange behavior that I try to explain shortly:
> A node (say node1) instantiates two cluster (group1 and group2).
> Another node (node2) joins group1; so the two views are:
> group1: [node1, node2]
> group2: [node1]
> node1 and node2 do nothing until node2 crashes without doing a clean
> shutdown.
> When node1 get notified of node2 failure this scenario happens:
>
> 26-feb-2008 21.19.57 com.sun.enterprise.ee.cms.impl.common.Router
> notifyFailureSuspectedAction
> INFO: Sending FailureSuspectedSignals to registered Actions.
> Member:node2...
> 26-feb-2008 21.20.00 com.sun.enterprise.ee.cms.impl.jxta.ViewWindow
> getMemberTokens
> INFO: GMS View Change Received: Members in view (before change
> analysis) are :
>
> 26-feb-2008 21.20.00 com.sun.enterprise.ee.cms.impl.jxta.ViewWindow
> newViewObserved
> INFO: Analyzing new membership snapshot received as part of event :
> FAILURE_EVENT
> 26-feb-2008 21.20.00 com.sun.enterprise.ee.cms.impl.jxta.ViewWindow
> addFailureSignals
> INFO: The following member has failed: node1
>
> and the two views are:
> group1: [node1, node2]
> group2: []
>
> For Shoal, node1 seems to have crashed even if it is actually up and
> running. So the view of group2 is update eliminating node1. The view
> of group1 is not updated at all, containing an element that isn't
> running anymore.
> In addition, node1 can still access group1 (i.e. to get member list
> and so on)
>
> Emanuele
>
> Shreedhar Ganapathy wrote:
>> Hi Emanuele
>> Take at look at
>> shoal/gms/tests/com/sun/enterprise/ee/cms/tests/multigroupjoin/MultiGroupJoinTest.java
>> that Sheetal checked in recently.
>>
>> That should help.
>> regards
>> Shreedhar
>>
>> Emanuele wrote:
>>> Hi,
>>> In my app I need that a node instantiate three different group. Here
>>> it is the code:
>>>
>>> Runnable gms1R, gms2R, gms3R = null;
>>> Thread gms1T, gms2T, gms3T = null;
>>> Properties properties = new Properties();
>>> gms1R = GMSFactory.startGMSModule(
>>> "node1",
>>> "MainCluster",
>>> GroupManagementService.MemberType.CORE,
>>> properties);
>>> gms1T = new Thread(gms1R, "GMS_Main_Cluster_Thread");
>>> gms2R = GMSFactory.startGMSModule(
>>> "node1",
>>> "group1",
>>> GroupManagementService.MemberType.CORE,
>>> properties);
>>> gms2T = new Thread(gms2R, "GMS_My_Cluster_Thread");
>>> gms3R = GMSFactory.startGMSModule(
>>> "node1",
>>> "SupervisorCluster",
>>> GroupManagementService.MemberType.CORE,
>>> properties);
>>> gms3T = new Thread(gms3R, "GMS_All_Supervisor_Cluster_Thread");
>>> gms1T.start();
>>> gms2T.start();
>>> gms3T.start();
>>>
>>> It happens that the node always fails in two groups and I receive
>>> the node notification failure.
>>> It seems that the node remains in the two groups in which it has
>>> failed even if
>>> GroupManagementService.getGroupHandle().getAllCurrentMembers()
>>> returns a zero-size list. Moreover
>>> GMSFactory.getAllGMSInstancesForMember() returns all the three
>>> groups instantiated.
>>>
>>> Is this that correct way to instantiate multiple cluster or I'm
>>> missing something?
>>> Thanks.
>>>
>>> Emanuele
>>>
>>>
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>
>
>
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