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From Afkham Azeez <afk...@gmail.com>
Subject Re: Tribes coordinator
Date Tue, 24 Apr 2012 08:38:49 GMT
Hi Filip,
I have integrated the NonBlockingCoordinator & committed to the Axis2
trunk. One thing I noticed is that even if the current coordinator is
alive, and a new member joins, it is possible for the new member to be made
the coordinator while the existing coordinator transforms into a normal
member. Is this the intended behavior? Is it possible to change the
coordinator only if the existing coordinator fails?

Thanks
Azeez

On Tue, Apr 24, 2012 at 11:26 AM, Afkham Azeez <afkham@gmail.com> wrote:

> Thanks for the pointers Filip. I will take a look.
>
>
> On Mon, Apr 23, 2012 at 9:12 PM, Filip Hanik Mailing Lists <
> devlists@hanik.com> wrote:
>
>>
>> http://tomcat.apache.org/tomcat-7.0-doc/api/org/apache/catalina/tribes/group/interceptors/package-summary.html
>>
>> Take a look at SimpleCoordinator and NonBlockingCoordinator
>>
>> Equally simple to implement your own based on the requirement you have
>> for leader election.
>>
>> It does depend on what you need leader ship for, sometimes, like virtual
>> synchrony, leaders are used to determine atomic delivery of a message to an
>> entire group. Either the entire group gets it, or doesn't.
>>
>> Filip
>>
>> ----- Original Message -----
>> > From: "Afkham Azeez" <afkham@gmail.com>
>> > To: "Tomcat Users List" <users@tomcat.apache.org>
>> > Sent: Monday, April 23, 2012 6:38:31 AM
>> > Subject: Tribes coordinator
>> >
>> > We are using Tribes in Axis2. In a cluster, we want to have leader
>> > election, and one member to be designated as the coordinator. How can
>> > this
>> > be achieved using Tribes?
>> >
>> > Thanks
>> > Azeez
>> >
>>
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>>

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