I've thought about using these kinds of generalized frameworks to help piece together various aspects of the LDAP replication system. At various stages I thought that these toolkits may be as you thought heavy.  In most cases, I felt that they were hard to fashion into something LDAP specific.  I've always felt like you have to create the message transport layer and directly implement the group management since it was defined by the replication agreement. 

Also I think there's something like this out there used by JINI: Javaspaces I think.  FYI JINI is now an Apache project called River I think so the code should be there.


On Tue, Jan 13, 2009 at 9:13 AM, ayyagarikiran <ayyagarikiran@gmail.com> wrote:
hi Guys,

  Am currently looking for a framework/toolkit which provides reliable network management I mean group management, node
  election etc. including application level message transfer.

  To put it in a simple way, a process group communication toolkit like JGroups (http://jgroups.org) (it is licensed
  under LGPL, so we cannot use it)

  This is for managing the network nodes present in a ADS Multi Master Replication System

  One idea is to use ActiveMQ with it 'Network of Brokers' feature. IMO this might be heavy with all the JMS thingy but
  am still evaluating the feasibility of using ActiveMQ.

  And another one I have come across is ZooKeeper(http://hadoop.apache.org/zookeeper/)

 from the web site
  ZooKeeper is a high-performance coordination service for distributed applications. It exposes common services - such
  as naming, configuration management, synchronization, and group services - in a simple interface so you don't have to
  write them from scratch. You can use it off-the-shelf to implement consensus, group management, leader election, and
  presence protocols. And you can build on it for your own, specific needs.

  did any one use it before? or do you have any other suggestions.

  As am still trying for a possible solution, I think this is the right time to ask for your suggestions.

I appreciate your time :)

Kiran Ayyagari