Mailing-List: contact users-help@tomcat.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "Tomcat Users List" <users@tomcat.apache.org>
Received-SPF: pass (nike.apache.org: domain of afkham@gmail.com designates
 74.125.82.173 as permitted sender)
MIME-Version: 1.0
In-Reply-To: 
 <CAG7MYh=itrdWHsSPt6Nhfy6ePUec+1G+HQ-Ztn6d7iY3NJOrww@mail.gmail.com>
References: 
 <CAG7MYhmkZvk7Nfk9L--jnoOevDv0XnhNYuiLZz2+MPr4iHM3kQ@mail.gmail.com>
 <65775494-0122-4ceb-84e1-759c916ad481@arizona.hanik.com>
 <CAG7MYh=itrdWHsSPt6Nhfy6ePUec+1G+HQ-Ztn6d7iY3NJOrww@mail.gmail.com>
From: Afkham Azeez <afkham@gmail.com>
Date: Tue, 24 Apr 2012 14:08:49 +0530
Message-ID: 
 <CAG7MYhk94vhTtVve+ZLawoxgs0ioqS+nxNKmnqv03ufqG32XTQ@mail.gmail.com>
Subject: Re: Tribes coordinator
To: Tomcat Users List <users@tomcat.apache.org>
Content-Type: multipart/alternative; boundary=001636d34cd2434e7104be68b082

--001636d34cd2434e7104be68b082
Content-Type: text/plain; charset=ISO-8859-1

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
>> >
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>

--001636d34cd2434e7104be68b082--