August 2008 - jboss-user - Jboss List Archives

[Beginners Corner] - Re: How to communicate between a SessionBean and a servlet?

by TIm Ward

OK ... it's as easy as moving the singleton POJO from the .war to the .jar, even though it is logically part of the web application logic. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171823#4171823 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171823

17 years, 8 months

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[JBoss jBPM] - Re: Problem with depoly jbpm-bpel-1.1.1

by rusbob

Russian proverb: Perseverance wins. I know a little, in usergude is written that simply!!! But I had to configure Hibernate and JBoss. For me all was not simple. Well I know a little Hibernate and one secret ;-) I am already employed ;-) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171822#4171822 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171822

17 years, 8 months

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[Installation, Configuration & DEPLOYMENT] - Re: JBoss as Windows service - stopping the service powers d

by PeterJ

The service description looks OK, but I cringe at seeing JBossAS installed in Program Files - having spaces in a path can cause some Java libraries fits. I keep mine at d:\opt\jboss\jboss-4.2.3.GA. If you move it out of Program Files and the problem goes away, I will add this problem to my growing list of things that can go wrong when running Java apps in a path with spaces in it. I was hoping that "sc qc" would also list the services that the jboss service depends on, but it doesn't. Could you look that up in the services manager window? It is the Dependencies tab on the Properties dialog box for the service. Also, please provide the information I asked for in my prior post. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171821#4171821 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171821

17 years, 8 months

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[Performance Tuning] - Re: JVM pauses periodically

by PeterJ

Sounds like you are hitting a major collection - I can see that taking 4-30 seconds to clean up the tenured generation based on the heap size. You could greatly improve your performance by setting the young generation size. For details, see my presentation at http://www.cecmg.de/doc/tagung_2007/agenda07/24-mai/2b3-peter-johnson/ind... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171818#4171818 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171818

17 years, 8 months

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[Installation, Configuration & DEPLOYMENT] - Re: Can't remote to Jboss, -b 0.0.0.0 not working

by PeterJ

Bombarta wrote : It's irrelevent simply because I've tried -b 0.0.0.0 from the cmd prompt as well as trying to include it in the executable line of run.bat . | | run.bat -b 0.0.0.0 You never come out and say it, but this statement implies that even when you use -b 0.0.0.0 to start the app server from the command line that you still cannot access the app server remotely. Is that really the case? If so, when you run from the command line, look for a a line that looks like: 2008-08-21 07:50:43,343 INFO [Http11Protocol] Starting Coyote HTTP/1.1 on http-0.0.0.0-8080 It will be a few lines before the "Started in xxx seconds" line. The IP address mentioned here is what the port was bound to. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171817#4171817 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171817

17 years, 8 months

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[Installation, Configuration & DEPLOYMENT] - Deploying to a remote server - how do I do this?

by HappySpaceInvader

I've searched this forum and struggled to find anything via Google. I'm trying to get the Codehaus jboss-maven-plugin to work using the target jboss:deploy (as opposed to harddeploy). There's some example code on their site (http://docs.codehaus.org/display/M2ECLIPSE/Using+Maven+with+application+s...), but the specified deployUrlPath value just makes Maven cry out in pain. I'd like to start by trying to understand how I can deploy something to a remote JBoss server without Maven. Is this possible? Can someone point me to the right documentation? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171816#4171816 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171816

17 years, 8 months

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[Performance Tuning] - Re: JVM pauses periodically

by kjkoster

Hmm. I'm curious, what is the machine doing during those 4-30 seconds? Is it burning CPU or I/O maybe? Is the JVM in RAM completely or are portions of it paged out to disk? You could run "vmstat 2" in a terminal next to "tail -f acces.log". As soon as you see the access log stall, check the vmstat to see what the box is doing, cpu or disk. Kees Jan http://java-monitor.com/forum View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171811#4171811 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171811

17 years, 8 months

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[Tomcat, HTTPD, Servlets & JSP] - Re: servlet: how to spawn all processors

by kjkoster

Which leaves the question: are you sure that your application is written such that it does not serialize requests internally? If you have synchronisation bottlenecks you can start as many threads as you like, but only a few may actually be runnable. You can check samples of the state of your threads using jconsole. If you find that most of them are waiting, blocked on a lock of some kinds it makes no difference how many processors you have. So, what makes you so sure that all threads in your application are free to run? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171807#4171807 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171807

17 years, 8 months

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[Installation, Configuration & DEPLOYMENT] - Re: Error [org.jboss.ha.framework.server.ClusterPartition]

by PeterJ

The location you posted has me puzzled - besides a typo there is a directory missing. Is the location c:\jboss3.2.7\server\all\deploy or c:\jboss3.2.7\server\default\deploy? Are you starting the app server as: run -c all or just as: run If you are running 'all' then you cannot just comment out the offending line because it is required for the cluster. Instead, you need to supply it with the port number. If you are not running clustered, you should be running the 'default' config, not the 'all' config. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171802#4171802 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171802

17 years, 8 months

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[Beginners Corner] - How to communicate between a SessionBean and a servlet?

by TIm Ward

I need to move some information between an EJB SessionBean and a servlet. This is a push scenario - something has happened out in the world, this event finds its way to a SessionBean and I need to get it out to the browsers via an Ajax push mechanism. First attempt goes like this: (1) Make a POJO singleton object. (2) Have the servelets do wait( timeout ) on this singleton object. (3) Have the SessionBean call into the singleton object to pass it new data as and when it arises. (4) Have the singleton object wake up the waiting servlets and return the data to the browsers. The bit that doesn't work, with the POJO singleton in the .war file, is step (2), because I get NoClassDefFound, apparently because the EJB side of things and the web application use different class loaders. How can I communicate between a web application and a load of EJB stuff running in the same JBoss instance? - this can hardly be a rare thing to want to do! (I have found several pages on class loader mechanisms on the JBoss site but haven't found one that I can actually begin to understand.) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171799#4171799 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4171799

17 years, 8 months

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jboss-user August 2008