• Breaking clustering code out of the AS

    Looking for input on repository naming conventions. To help support Remoting and Messaging, I'm looking to extract some of the common usage clustering code out of AS cluster module into a separate project so it can p...
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  • ClusterPartition vs HAPartition

    Been doing a lot of refactoring, etc. related to ClusterPartition due to using JBoss Cache for state and multiplexer for the Channel. One thing that is confusing me is the distinction between HAPartition, HAPartition...
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  • System property expansion with Multiplexer

    One multiplexer integration problem I've noticed is using the JBoss system property expansion technique doesn't work with multiplexer-stacks.xml. E.g. <UDP mcast_port="45588" mcast_addr="${jboss.partition.udpGro...
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  • JBAS-2394 - multicast addr not working

    I ran Branch_4_0 with -u 228.1.2.4 and looked at the debug logging here's the output and config: It claims it is using the config: 2005-10-21 11:07:34,841 DEBUG [org.jboss.ha.framework.server.ClusterPartition] Sett...
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  • JBAS-2499 Configurable Policy to Elect HASingleton Master

    Discussion forum for http://jira.jboss.com/jira/browse/JBAS-2499 . See also http://www.jboss.com/index.html?module=bb&op=viewtopic&t=78336. Some very brief and rough thoughts on configurable policies for det...
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  • TC6 versions of (InstanceOf)AopMarker

    For AS 5 Bill's created a org.jboss.web.tomcat.tc6 package structure that parallels the old tc5 packages. As a result, interfaces o.j.w.t.tc6.session.(InstanceOf)AopMarker have been created. Does anyone see any reaso...
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  • General Discovery Service in Clustering

    The Remoting project includes a service discovery framework (Detectors). AS Clustering also includes a service simple discovery mechanism in HA-JNDI AutoDiscovery. As discussed at http://www.jboss.com/index.html?modul...
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  • Cluster membership with JGroups 2.3 multiplexer

    From an email thread: I'm running tests using the JGroups multiplexer in a situation where a service isn't present on all nodes in a cluster. For example, assume a two node cluster with two clustered application serv...
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  • ejb3 sfsb failover and replication

    This is a cross post from ejb3. http://www.jboss.com/index.html?module=bb&op=viewtopic&t=83763 Any further discussion, let's do it over there as in one place.
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  • Refactoring of HAPartition-related services

    Thoughts re: other cleanup of stuff that uses HAPartition. DRM, DS, HASessionState -- all are going to use JBC in 5.0. Currently ClusterPartition creates HAPartition, which then creates DRM and DS. We need to get a re...
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  • Http session passivation Design

    Hi all, below is a draft of the design doc for this feature. I have couple of conerns that I'd appreciate your feedback on. Regards, Hany. HTTP Session passivation/activation feature design ====================...
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  • JChannelFactory integration in JBoss AS

    Discussions of http://jira.jboss.com/jira/browse/JBAS-3148 . Copied from a recent e-mail by Bela: Example of how a Multiplexer MBean can be created is in http://jira.jboss.com/jira/browse/JGRP-112 . The multiplexer...
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  • HA-JNDI and twiddle

    JBAS-3138 reports that when HA-JNDI is used with twiddle to return attributes for an mbean deployed on one server in a cluster, the operation frequently fails. For example, the following works sporadically. twiddle -...
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  • FarmMemberService looks up HAPartition in JMX every time it

    FarmMemberService is doing a JMX lookup of the HAPartition every time its deploy() method is invoked (i.e. every time its scanner finds a new file in /farm). Is anyone aware of a reason for doing this and not holding...
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  • Seeking Contributors for AS Clustering Projects

    We are always very happy to work with contributors from the JBoss community on AS Clustering projects. To make it easier for contributors to identify suitable projects, we've created a wiki page where we'll highlight ...
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  • AbstractScheduleProvide shouldn't be HASingleton

    I'm looking at cases like http://jira.jboss.com/jira/browse/JBAS-3082 http://jira.jboss.com/jira/browse/JBAS-2615 I think our current implementation of the ScheduleProviders being HASingletons, is a bad idea. It put...
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  • Singleton and/or Deployer is too brittle

    opening discussion thread for http://jira.jboss.com/jira/browse/JBAS-73 .
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  • Adding a GUID to JGroups Views

    Wanted to float the idea of adding a "cluster instance id" to JGroups views. This relates to http://jira.jboss.com/jira/browse/JBAS-1476 and the related discussion at http://www.jboss.com/index.html?module=bb&op=...
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  • JBAS-1476 Need to include a notion of cluster instance in th

    Discussion thread for http://jira.jboss.com/jira/browse/JBAS-1476. I originally intended to open this thread to talk through some design decisions I'd made in how to implement the fix proposed on the JIRA issue, but ...
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  • JBAS-2957: using JGroups for AutoDiscovery

    JBAS-2957 prescribes the use of JGroups as the underlying communication mechanism for HA-JNDI AutoDiscovery. For design background, the current implementation works as follows. The NamingContext attempts to discover ...
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