April 2010 - jboss-user - Jboss List Archives

Re: [jboss-user] [jBPM] - JPDL feature request

by Alexei none

Alexei none [http://community.jboss.org/people/Jump] replied to the discussion "JPDL feature request" To view the discussion, visit: http://community.jboss.org/message/536590#536590 -------------------------------------------------------------- Can anybody clear how g attribute relates to actual location & dimentions of visual block? If i'm not mistaken, first 2 numbers describe x & y coordinates of upper left conner for state blocks and circle's center for end & start blocks. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536590#536590] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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Re: [jboss-user] [JBoss Messaging] - Send message to Clustered Topic from external source

by mariqn nenchev

mariqn nenchev [http://community.jboss.org/people/mnenchev] replied to the discussion "Send message to Clustered Topic from external source" To view the discussion, visit: http://community.jboss.org/message/536587#536587 -------------------------------------------------------------- I could say it is something like bus which is visible across the cluster. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536587#536587] Start a new discussion in JBoss Messaging at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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Re: [jboss-user] [JCA Development] - JcaXAResourceRecovery

by Jesper Pedersen

Jesper Pedersen [http://community.jboss.org/people/jesper.pedersen] replied to the discussion "JcaXAResourceRecovery" To view the discussion, visit: http://community.jboss.org/message/536584#536584 -------------------------------------------------------------- After some digging around I managed to get the TransactionManagerService into the JMX component using the system-jmx module in AS. So no need to extend the current TMS MBean interface with the recovery methods. Jonathan, I'll keep you in the loop on my progress. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536584#536584] Start a new discussion in JCA Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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[JBoss Messaging] - Send message to Clustered Topic from external source

by mariqn nenchev

mariqn nenchev [http://community.jboss.org/people/mnenchev] created the discussion "Send message to Clustered Topic from external source" To view the discussion, visit: http://community.jboss.org/message/536581#536581 -------------------------------------------------------------- Hi, I have java se console application that must send jms messages to jboss topic. The problem is that i pass the ip where jboss is started and that way the console app knows how to lookup the topic. So i need to run two jboss instances in cluster. For every jboss i will run separate console application, but if one fails the console application must continue to send messages to the other, that is why the topic will be clustered. But i do not have to use ip, because if one fails the app could not lookup the topic. I thought about using external active mq about that, but if you have any ideas with jboss messaging it would be great. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536581#536581] Start a new discussion in JBoss Messaging at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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Re: [jboss-user] [EJB 3.0] - Stateless Pooling In JBoss AS.

by paata lominadze

paata lominadze [http://community.jboss.org/people/grdzeli_kaci] replied to the discussion "Stateless Pooling In JBoss AS." To view the discussion, visit: http://community.jboss.org/message/536575#536575 -------------------------------------------------------------- thank you for your reply jaikiran. The clients of my SLSB is other SLSB's and their client are simple servlets from another jboss as. I think that problem is into HTTP server which clients are my SLSB's. Problem are appearing at night, when requests achieve 100-150 per second. It's clear everything with StrictMaxPool, but if I set limit on it, I'll get blocked requests. It'll not resolve my problem, I think i must look into the http server. Anyway, Thank you very much. your reply was helpfull. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536575#536575] Start a new discussion in EJB 3.0 at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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Re: [jboss-user] [jBPM] - How to configure 4.3 the right way?

by Marcel de Koster

Marcel de Koster [http://community.jboss.org/people/marcel.de.koster] replied to the discussion "How to configure 4.3 the right way?" To view the discussion, visit: http://community.jboss.org/message/536570#536570 -------------------------------------------------------------- Hi Christian, You are missing the class attribute in your class-cache tags. I am currently testing with following hbm files for jbpm4. In my hibernate config I map these files instead of the standard hbm files that are in JBPM. To make the JobExecutor not use a query with a :now (timestamp) in it I needed to change the DbSessionImpl, to make the query cacheable. I now use current_timestamp() in the named query instead of the :now, that will be replaced by a timestamp parameter. I also added setCacheable on some of the queries that were in the DbSessionImpl. I am not running your tests, I do however see, the database isn't called as many times as before from the JobExecutor. Now the cache is being hit each time. Still need to test more though, but this was what I was testing. Using jbpm with ehcache does not yet seem to give any problems in our application. Regards, Marcel -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536570#536570] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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Re: [jboss-user] [jBPM] - How to assignee this tasks?

by Anand Kumar

Anand Kumar [http://community.jboss.org/people/akstifr] replied to the discussion "How to assignee this tasks?" To view the discussion, visit: http://community.jboss.org/message/536566#536566 -------------------------------------------------------------- Thank you once again for your reply :) http://community.jboss.org/people/rebody Huisheng Xu, > I think what you want to do is sending message between different branches of process instance. If ADMIN have not assign the task to a employee, the starter of process instance could have a chance to end the process instance. But if ADMIN is already assign the task to a emloyee, the starter of process instance could not cancel the process instance any more. Do you mean that? Yes i mean what you said above.. Then how should i can proceed further ?? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536566#536566] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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Re: [jboss-user] [jBPM] - How to configure 4.3 the right way?

by Christian Moser

Christian Moser [http://community.jboss.org/people/Krossi] replied to the discussion "How to configure 4.3 the right way?" To view the discussion, visit: http://community.jboss.org/message/536565#536565 -------------------------------------------------------------- Thank you for your replies! Huisheng I took the standard configuration for 4.3. Where can I decrease transaction isolation? Maciej: I added your configuration part to jbpm.hibernate.cfg.xml. The results are better, but 70 ms vs. 25 ms is not really good. jbpm.hibernate.cfg.xml <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE hibernate-configuration PUBLIC -//Hibernate/Hibernate Configuration DTD 3.0//EN http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd> <hibernate-configuration> <session-factory> <property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/jbpm</property> <property name="hibernate.connection.username">username</property> <property name="hibernate.connection.password">password</property> <property name="hibernate.hbm2ddl.auto">create-drop</property> <property name="hibernate.format_sql">true</property> <property name="hibernate.use_sql_comments">true</property> <property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property> <property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property> <property name="hibernate.cache.use_second_level_cache">true</property> <property name="hibernate.cache.use_query_cache">true</property> <mapping resource="jbpm.repository.hbm.xml" /> <mapping resource="jbpm.execution.hbm.xml" /> <mapping resource="jbpm.history.hbm.xml" /> <mapping resource="jbpm.task.hbm.xml" /> <mapping resource="jbpm.identity.hbm.xml" /> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> <class-cache usage="nonstrict-read-write"/> </session-factory> </hibernate-configuration> Regards, Christian -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536565#536565] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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Re: [jboss-user] [EJB 3.0 Development] - BOMs Away - Composing Dependency Management

by Carlo de Wolf

Carlo de Wolf [http://community.jboss.org/people/wolfc] replied to the discussion "BOMs Away - Composing Dependency Management" To view the discussion, visit: http://community.jboss.org/message/536558#536558 -------------------------------------------------------------- Right now we duplicate the versions of each components that we expose in both the bom and the profile. That's not how it's supposed to work. If I read the maven manual correctly they are saying that the user (== ejb3_1) should import the bom (== as6). Which of course can't happen. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536558#536558] Start a new discussion in EJB 3.0 Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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[jBPM] - Pessimistic locking in a clustered environment

by des kane

des kane [http://community.jboss.org/people/kaned] created the discussion "Pessimistic locking in a clustered environment" To view the discussion, visit: http://community.jboss.org/message/536554#536554 -------------------------------------------------------------- Hi, Our first implementation of jBPM uses 3.2.6 and we need to cater for concurrent users in a clustered Tomcat environment. More specifically we need to ensure that when we update a process definition, it is "locked" until the update completes and any other threads wait until the lock is released before being able to read or write the process definition. We were under the impression (advice given by a Redhat consultant) that the getProcessInstanceForUpdate(processInstanceId) method on the JbpmContext class would carry out a "SELECT FOR UPDATE" at the database level and we have implemented our solution around this. However, having read the java doc for this method - http://docs.jboss.org/jbpm/v3/javadoc/org/jbpm/JbpmContext.html#loadProce... (http://docs.jboss.org/jbpm/v3/javadoc/org/jbpm/JbpmContext.html#loadProce... it simply states that it is a convenience class that means that will automatically save the updates to the process instance when the context is closed. I've seen anothe post that suggests we need to apply the SELECT FOR UPDATE lock programatically http://community.jboss.org/message/373432#373432 Can someone confirm the way to apply pessimistic locking in a clustered environment ? Cheers, Des Kane. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536554#536554] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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jboss-user April 2010