March 2009 - jboss-user - Jboss List Archives

[JBoss Cache: Core Edition] - Architecture Advice: Exactly One Cache Instance Per Node

by mraccola

Would appreciate some advice on the best way to accomplish the following requirement. Current Architecture We are using JBoss Cache 1.4.1 SP9. We have an EAR file with one Web module (WAR). We deploy this application on both WebSphere and JBoss. So we include the JBoss Cache JAR file inside the WAR's WEB-INF/lib directory. In the case of WebSphere we also include the JBoss Cache dependencies (jboss-common.jar, etc). We set the class loader order so the Web module class loader is first. Our TreeCache configuration file is deployed to a folder outside the deployed app and this folder is added to the server's classpath using a vendor-specific mechanism. The end result is exactly one cache instance per application instance. The cache instances are configured to communicate with each other using REPL_SYNC. Target Architecture We are coming out with a new version of the app which includes multiple Web modules (WARs) in the same EAR. All the Web modules need the same cache contents. If we retain the existing architecture this will multiply the number of cache instances. This is undesirable because (a) each cache instance will require memory, (b) all cache instances need to stay in sync, multiplying the network traffic, (c) each cache instance will need its own configuration file, especially for TCP-based replication. What we want is a way to instantiate one cache instance for the entire JVM and register it so it can be accessed by JNDI or JMX. Then each Web module can just lookup the cache. This must work on both WebSphere and JBoss (and in the future WebLogic). We would strip all JBoss JARs from the WAR/EAR and deploy them to the server. Then the server would need to be instructed to create a cache instance as the server comes up and register it. We would have lookup code to get a handle on the cache instance when the Web module(s) came up. We would also upgrade to JBoss Cache 3.x at the same time so we didn't have to deal with conflicts in JBoss system libraries and the versions embedded in the app server (javax.management classes for example). I think it is fairly easy on JBoss AS. There are instructions for deploying a cache instance to JMX. This should create one instance per node. However, I am not sure if this is recommended on other app servers. We are thinking we can use the WAS Extended MBean Provider feature, http://publib.boulder.ibm.com/infocenter/wasinfo/v6r1/index.jsp?topic=/co.... Any advice on whether this is recommended or any tips to get it going? I would be happy to write up a Wiki article if we do get it working on WebSphere. The current Wiki articles on the topic on the JBoss Cache community site aren't very comprehensive. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215697#4215697 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215697

17 years, 1 month

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[JBoss Tools (users)] - Re: Dali plugin: which version

by Juergen.Zimmermann

I cannot create any project having the JPA facet enabled. Dali 2.1.1 can access PostgreSQL only via the default schema. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215696#4215696 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215696

17 years, 1 month

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[JBoss Portal] - Re: Applets in JBOSS-Portal-Server-2.7.0 with Internet Explo

by LeoLo

Additional note: My OS is Windows XP SP2, exact IE-version is 7.0.5730.13. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215694#4215694 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215694

17 years, 1 month

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[Remoting] - Re: Race condition in ConnectionValidator

by thammoud

Hi Ron, I think that their might be an issue with your suggestion. perhaps you can explain this behavior. I took your advice and bumped up the pingperiod to be more that the timeout and noticed that if we restart the server from under the client and the server comes back in less time than the ping period (Very possible), then the client's JMS connection listener does not get called yet the connection is invalid. If the pingperiod is relatively short, say 10 seconds then the listener gets called. I do not believe that this is a messaging issue. Not having the JMS connection listener be called causes the client to get into a funny state. Perhaps we can work around that, but it seems to me that you will be putting the burden of cleanups on all your clients. Not very developer friendly. Again, my fix allows a user to specify a very short ping period and the JMS connection listener gets called immediately. Thanks for your insight. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215692#4215692 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215692

17 years, 1 month

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[JBoss Portal] - Applets in JBOSS-Portal-Server-2.7.0 with Internet Explorer

by LeoLo

Hi, I'm evaluating the use of applets in a portlet-application on a jboss-portal-2.7.0.GA-server. I've set up a little portlet with a test-applet. It uses the applet-tag. (I've tested the same thing with the object-tag also.) A Java-Plugin 1.6.0.7 is installed for Firefox and for the Internet Explorer 7.0. The Applet on the portal-page is rendered correctly with FF. If I use IE to show the portal-page the IE kinda freezes. No error message, no hint, what happens, no Java-Plugin-Loading, nothing. If I use this IE to display some other applet on the www, the applet is shown correclty. The security settings in the IE for my portal-server are even lower than for the www. Any hint, what the problem may be? Regards, LeoLo View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215691#4215691 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215691

17 years, 1 month

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[JBoss jBPM] - Re: Problem deploying on JBoss 5

by gchanteb

Yep, When you go on https://jira.jboss.org/jira/browse/JBPM-1913, at the bottom of the page, somebody says "Include patches from SOA-1052" ==> SOA-1052 is here: https://jira.jboss.org/jira/browse/SOA-1052 and on the SOA-1052 page, there is a file named "jbpm-console.war.diff (11 kb)". When you open this file, you have all the lines that you need to replace in your 6 .xhtml files. For example, +++ jbpm-console.war/app/procdef.xhtml 2009-01-07 10:43:13.000000000 +0000 | - <ga:parameter name="fr" target="#{filter_running}" default="true"/> | + <ga:parameter name="fr" target="#{filter_running}" default="${true}"> | + <f:converter converterId="javax.faces.Boolean"/> | + </ga:parameter> It means you need to replace the line - <ga:parameter name="fr" target="#{filter_running}" default="true"/> by + <ga:parameter name="fr" target="#{filter_running}" default="${true}"> | + <f:converter converterId="javax.faces.Boolean"/> | + </ga:parameter> in jbpm-console.war/app/procdef.xhtml View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215687#4215687 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215687

17 years, 1 month

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[JBoss Messaging] - jms communications in the same jvm in the client side

by slimamar

Hello, Is it possible to make JMS communications between 2 clients in the same JVM at the client side that is outside the JBoss server. We need to do this for validation considerations. Thanks in advance. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215683#4215683 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215683

17 years, 1 month

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[Installation, Configuration & DEPLOYMENT] - deploying jsf application(developed in jdeveloper) in jboss-

by sangireddi＠gmail.com

Hi... this the error log what i am getting...it looks like missing some configuration .. If any one solve this ..please let me know.... oracle.adfinternal.view.faces.config.rich.FacesDatabindingConfigurator _setupAdfDatabindingForJsf SEVERE: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at oracle.adfinternal.view.faces.config.rich.FacesDatabindingConfigurator._setupAdfDatabindingForJsf(FacesDatabindingConfigurator.java:119) . . . . Caused by: java.lang.NullPointerException at com.sun.faces.config.WebConfiguration.getInstance(WebConfiguration.java:123) at com.sun.faces.application.ApplicationImpl.addPropertyEditorIfNecessary(ApplicationImpl.java:705) at com.sun.faces.application.ApplicationImpl.addConverter(ApplicationImpl.java:673) at oracle.adfinternal.view.faces.config.rich.AdfModelHelper.init(AdfModelHelper.java:37) ... 71 more thanks in advance View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215679#4215679 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215679

17 years, 1 month

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[Installation, Configuration & DEPLOYMENT] - Re: FacesDatabindingConfigurator in jboss

by sangireddi＠gmail.com

hi ... i also getting same error while deploying adf applications to jboss.i think i miss some jars..?can u tell me what wrong from my side...actually that is working fine with weblogic.. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215677#4215677 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215677

17 years, 1 month

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[JBoss Tools (users)] - Re: Dali plugin: which version

by max.andersen＠jboss.com

That is only the validation of column/tables that get affected right ? Everything else works fine ? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215676#4215676 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215676

17 years, 1 month

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jboss-user March 2009