April 2009 - jboss-user - Jboss List Archives

[Clustering/JBoss] - Cluster nodes not discovered

by sureshrk19

Hi, I'm trying to setup 2 node cluster; Jboss 4.2.3 Jdk 1.5 APache 2.2 with mod_jk 1.2.x On local desktop everything works fine; I configured 2 nodes (all and copy_of_all) on single machine and configured cluster. Application (.war file) is copied to '/all/farm/' directory and the same is notified to second node on startup. Loadbalancing, fail-over all works fine. Now, I'm trying the same setup on remote linux boxes i.e., 2 Jboss nodes on 2 different boxes. In this case, the nodes are not recognizing the other cluster node. On both the nodes, I see the following messages... --------- 15:18:02,378 INFO [DefaultPartition] Number of cluster members: 1 15:18:02,378 INFO [DefaultPartition] Other members: 0 15:18:02,378 INFO [DefaultPartition] Fetching state (will wait for 30000 milliseconds): 15:18:02,379 INFO [DefaultPartition] State could not be retrieved (we are the first member in group) --------- As I copied the application to "/farm" directory of node1 (of machine 1)... the application is served by the same node all the time. If I kill the node1 then, node2 throws 404 (As the application is not deployed on that) As I remember I didn;t do anything extra while setting up locally. Do I need to setup something like multicasting for remote machines?? Am I missing anything? Thanks, Suresh View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224155#4224155 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224155

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[EJB/JBoss] - Re: Initializing log4j in standalone EJB client

by Ralph_

Works. Thank you very much. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224153#4224153 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224153

17 years

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[JBoss Messaging] - Re: Definitive Correct postgres-persistence-service.xml for

by javadba＠gmail.com

I'm using EAP 4.3 CP 03 The docs/examples/jms one has issues. I guess I will try to work through redhat support: this may be specific to their EAP releases. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224150#4224150 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224150

17 years

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[JBoss Cache: Core Edition] - Re: What is the definition of Node in treecache? Passive?

by yangju

Thanks. So, the eviction queue should not be the cause of our problem as the content in the queue is pretty small. I think we have found out the problem we had in production. It is the hot deployment. I know jboss does not recommend redeployment in production, we use it once in a while to add new datasources. What happened in our case is like this: We turned on hot deployment for adding a new datasource. But we also changed the treecache.xml so that the Max node number can be reduced. When the hot deployment runs, it redeployed treecache. Also, we have hibernate session factory service (mbean) depends on the treecache mbean. So all the session factories got redeployed. At that moment, jboss was hosed and refused to take in requests. What we do not know is that what happens in hot deployment of treecache with actively being used by hibernate. Does this explain why our eviction queue got so big? Thanks. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224149#4224149 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224149

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[JBoss Messaging] - Re: Distributed messaging without clustering

by fs5＠gmx.net

>From what I have understood from the documentation, you will get a distributed messaging system as long the JBoss application server underneath is clustered. So in this setup, you can in-queue a message in one node and out-queue this message in another node. But what if the two application server instances are not forming a cluster? In this case, is there a way to achieve the same result? - I mean, sending a message through a queue that is not deployed locally and receiving this message on a different application server instance also from a queue that is not deployed locally? Is such a scenario feasible? Thank you for your help, Frank View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224147#4224147 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224147

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[JBoss Cache: Core Edition] - Re: What is the definition of Node in treecache? Passive?

by bstansberry＠jboss.com

The queue contains instances of: http://anonsvn.jboss.org/repos/jbosscache/core/branches/1.4.X/src/org/jbo... As you can see it contains ref to an Fqn, two ints, a boolean and a long. Every time you read or write to the cache one of those is created and added to the queue. When the eviction thread runs they are pulled off the queue, data is used in eviction decisions, and the EvictedEventNode is discarded. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224146#4224146 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224146

17 years

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[JBoss Portal] - Re: Good framework to use in JBoss Portal?

by apemberton

If the JBoss Portlet Bridge is still a bit too cutting edge for your shop, we've used Spring Portlet MVC successfully in several large scale JBoss Portlet projects. Though, it does come with the typical spring headaches (verbose xml, type safety issues). The answer here depends on a number of factors specific to your project: - skillset of your development team / re-training costs - number and kind of existing applications to migrate - number and kind of new applications to be developed The idea of writing Seam apps and using the JSR301 / Portlet Bridge to suck them into the portal is *very* appealing; though, I can't say from experience how "ready" the stack is: https://jira.jboss.org/jira/browse/PBR Good luck! View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224142#4224142 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224142

17 years

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[JBoss Cache: Core Edition] - Re: What is the definition of Node in treecache? Passive?

by yangju

200,000 seems pretty big to me. But my question is how big of each object in the eviction queue? What is the content of objects in the eviction queue? Is it just wrapper around the cached objects or just a pointer to the cached object? If it is a replication of each cached object, then 200,000 such objects can takes significant memory. Could you give us more info on this eviction queue so that we can better understand our outofmemory Thanks. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224141#4224141 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224141

17 years

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[JBoss Messaging] - Re: Definitive Correct postgres-persistence-service.xml for

by PeterJ

The one located at doc/examples/jms works for me with durable topics. I made only one change: changed DefaultDS to another datasource. By the way, which version of JBoss AS (and Messaging if you updated it). View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224139#4224139 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224139

17 years

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[Installation, Configuration & DEPLOYMENT] - Re: JBOSS service running with max 10024MB

by PeterJ

2048M is a larger heap than what Java can handle on 32-bit Windows - the largest I have seen is around 1.7GB. Also, whenever you run into issues like this you should try running it from the command line to see what output you get, rather than running it as a service. There will never be any information about what went wrong in the event logs. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224135#4224135 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4224135

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jboss-user April 2009