January 2008 - jboss-user - Jboss List Archives

by manik.surtani＠jboss.com

Sorry, I didn't quite understand your use case in the beginning. If you are adding data to .5 while at the same time reading the same data from the other nodes (causing data gravitation), this will naturally cause some timeouts since there is contention on a buddy backup subtree. In general though, we very strongly recommend that you have session affinity if you are using buddy replication. I.e., only perform reads and writes on ONE INSTANCE in the cluster for each key. Data gravitation should really only be used as a form of recovery if a node dies and your reads and writes are now redirected to a standby instance. See http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossCacheBuddyReplicationDesign. I guess judging by your access patterns, you need something like Partitioning, which won't be available for at least another 6 months or so - unless you're willing to help out! ;-) Without better knowledge of your application, I can't really recommend an alternative strategy - do you use a load balancer to distribute requests between caches? Do you use some form of session id per request and is data shared between "sessions"? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117056#4117056 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117056

18 years, 3 months

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[JBossWS] - Re: Relationship between wsconsume and wsimport

by jsolderitsch

Thanks for the confirmation. I am successfully using wsimport from maven to generate JAXB classes from a WSDL that seems to produce identical code compared to that produced by wsconsume. This allowed use to replace a .bat file in our workflow with a corresponding maven goal. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117055#4117055 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117055

18 years, 3 months

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[Installation, Configuration & DEPLOYMENT] - Successful deployment on GlassFish, but not on JBoss 4.2

by djkrite

Hello, I have a web application that I can deploy on GlassFish with no problems, but when I attempt to deploy on JBoss4.2 I get this error: 08:45:25,490 FATAL [application] JSF1029: The specified InjectionProvider implementation 'org.jboss.web.jsf.integration.injection.JBossInjectionProvider' does not implement the InjectionProvider interface. | 08:45:25,492 INFO [application] JSF1048: PostConstruct/PreDestroy annotations present. ManagedBeans methods marked with these annotations will have said annotations processed. | 08:45:25,822 ERROR [[/LoginV1]] Exception sending context initialized event to listener instance of class org.jboss.web.jsf.integration.config.JBossJSFConfigureListener | java.lang.ClassCastException: com.sun.faces.config.WebConfiguration | Code someone help me out? TK View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117054#4117054 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117054

18 years, 3 months

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[JBossCache] - Re: Does it matter with the warning

by manik.surtani＠jboss.com

Hi I can't say I've ever seen this before - it may well have to do with the fact that JBoss Cache is not an XA resource and hence doesn't go through the steps to register itself as an XA resource with an XA compliant TM. This should not impact any functionality though, except XA recovery, but in a cache's case this would typically be to flush the cache. Anyway, I have created a JIRA issue to investigate the WARN message: JBCACHE-1254 Could you please confirm - on the JIRA - the versions of JBoss Cache and JBoss TS, as well as the environment (i.e., within an app server, etc)? Cheers, Manik View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117053#4117053 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117053

18 years, 3 months

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[JBoss jBPM] - Re: A new task has been assigned to 'null'

by kukeltje

no it does not have anything to do with jbpm not supporting multiple swimlanes, because it does. It is/was a bug in the console that it did not display things correctly. It should have worked normally otherwise View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117052#4117052 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117052

18 years, 3 months

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[JBoss Seam] - Re: Retreiving data based on displayed data

by felixk2

I can do that, but is it possible though to have a bean with an @In and @Out then set the @In parameter when I load the page? Basically it would be great if I can just do something like: #{customerProductList.customer = customerHome.instance} in my view. (.customer being the @In of customerProductList) Then my datatable would check the @Out three times instead of firing off three db queries. Has anyone ever experienced the same situation? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117050#4117050 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117050

18 years, 3 months

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[JBossCache] - Re: Problem after loading Huge data

by manik.surtani＠jboss.com

In terms of limitations, there are no known memory or size limitations within JBoss Cache, as long as your JVM has adequate heap size. In terms of performance, tree breadth is represented as Maps containing child nodes for each parent node. If each parent node has a large number of children, the Map implementation may become a bottleneck. As of the current stable release (2.0.0.GA) we use java.util.concurrent.ConcurrentHashMaps here. I would say it is worthwhile profiling to see if this does become a bottleneck for you. In terms of depth, while 20 - 30 levels deep is probably close to the upper level of what I have seen in production use as most folk tend to prefer broader trees to deeper ones. THe limiting factor here is the cost of retrieving a node from the tree (since it walks the tree structure). Deeper trees means more walking. In 2.1.0 we will be optimising this by significantly reducing tree walking (JBCACHE-811). Again though, something I'd recommend profiling first to see how much of an impact it causes with your access patterns. Finally, regarding your issue of verifying existence, do you have any eviction configured? It could be that an eviction thread is removing nodes from the tree. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117049#4117049 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117049

18 years, 3 months

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[JBoss Seam] - Re: Server push

by Cloud

No but good suggestion, you may have put the finger on the right thing... that reminds me something interesting around the reverse ajax subject with jms but i don't remember what exactly :) or where i saw it to be precise. What were you thinking off around this ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117047#4117047 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117047

18 years, 3 months

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[EJB 3.0] - Re: How to define unique constraint on foreign keys ?

by hiasi29

Thanks, that worked for me, too! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117046#4117046 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117046

18 years, 3 months

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[Tomcat, HTTPD, Servlets & JSP] - Servlet Redirect filter based on declarative decision graph?

by rainersimon

Hi, -- Sorry for cross posting this from the jBPM group but it seems to be equally suitable for this group as well - I'm ready to get flamed ;-) -- I'm trying to achieve the following goal, and I don't know how to do it in a clever way yet - i.e. without creating a proprietary solution to a problem that someone else has probably solved (better) already: I'm planning to build a servlet filter that redirects visitors of the same URL to different documents. The redirect-decision should be made based on a decision graph - similar to a workflow graph - and a bunch of parameters stored in the HttpSession context. I could just hard-code the decision graph into the servlet filter. But I want to be able to change the graph (i.e. the decision logic) without changing the code of the Filter... I know this should be possible with jBPM. But since there is no interaction with with databases, Web services, or human actors in the decision logic, it seems that I'm following an overly complicated route to achieve a relatively simple goal. Is there an easier way to do this? Any comments are welcome. At the moment I don't even know what words to Google for ;-) Thanks, Ray View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117045#4117045 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4117045

18 years, 3 months

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jboss-user January 2008