October 2007 - jboss-user - Jboss List Archives

[JBoss jBPM] - Re: async processes : favour termination instead of inceptio

by jeffj55374

Hi, I'm facing a similar issue. We need to process 100's of groups of files. Each file group results in the creation of a process instance. Each process has a number of steps. Some of these steps take 10's of minutes or hours to process. Therefore we are using the embedded async continuation method to allow for nodes to be processed in parallel to leverage our multi-cpu system. When a new job is created for each async node, it is given a due date of the current system time. | See Node.createAsyncContinuationJob: | | protected ExecuteNodeJob createAsyncContinuationJob(Token token) { | ExecuteNodeJob job = new ExecuteNodeJob(token); | job.setNode(this); job.setDueDate(new Date()); job.setExclusive(isAsyncExclusive); | return job; | } The job executor thread acquires jobs based on the results of a querying the JBPM_JOB table and sorting by due date. The JobExecutorThread acquires jobs by calling JobSession.getFirstAcquirableJob() which executes the query below. Note the results are ordered by due date. | | <query name="JobSession.getFirstAcquirableJob"> | <![CDATA[ | select job | from org.jbpm.job.Job as job | where ( (job.lockOwner is null) or (job.lockOwner = :lockOwner) ) | and job.retries > 0 | and job.dueDate <= :now | and job.isSuspended != true order by job.dueDate asc ]]> | </query> Essentially async nodes are processed in the order in which they were created, this is completely different than the order in which the process instances where created. This essentially means that all the early nodes of all processes instances are executed before the later nodes of the first process instance. i.e. I would really like the job executor to work on nodes associated with the first process instance before working on nodes associated with subsequent process instances. i.e. if possible complete ready process instance 1 jobs before working on process instance 2 jobs. Options I'm considering: | 1. Modify Node.createAsyncContinuationJob() to use the create date of the processes instance for the job due date rather than just using new Date(); | 2. Creating my own sub class of org.jbpm.job to add in another member that saves my priority and modify the JobSession.getFirstAcquirableJob query accordingly | 3. Modifying the JobSession.getFirstAcquirableJob query to order the list by process instance ID first and then due date. At the moment this seems like the most straight forward approach and doesn't require me to modify or extend jBPM code or modify the schema. | | | Anyone have other ideas? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091172#4091172 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091172

18 years, 6 months

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[Installation, Configuration & DEPLOYMENT] - Re: JBoss AS 4.2.1 with SSL with Tomcat Native on Linux

by dimitris＠jboss.org

Have you tried http://localhost:8080/ ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091171#4091171 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091171

18 years, 6 months

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[JBoss Seam] - Re: limiting size of query/result set

by matt.drees

It does that so that, if you're doing paging, you can tell if there's a next page or not (which is a cute trick, by the way). The getResultList() method will only have 3 results. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091170#4091170 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091170

18 years, 6 months

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[JBoss Seam] - Re: Accessing HttpSession in Jboss Seam

by matt.drees

You can even inject (non-Seam) session values into your Seam components: | @In("my_session_object_key") MySessionObjectType mySessionObject; | The cool thing about this is if you later decide to move your object to a different scope (eg conversation), you don't have to change this code at all! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091169#4091169 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091169

18 years, 6 months

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[JBoss Portal] - Re: weather portlet

by ebrennan＠hotmail.com

Have you found a solution for this yet? Our firewall asks for a username and password each time we go out. Is there a spot where I can set up this user name and password on the Portal server so the server can go out and get the RSS feeds. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091168#4091168 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091168

18 years, 6 months

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[JBoss Seam] - problem with deploy seam project in NetBeans IDE 6.0 M10

by juk

hello ! i just switch my Eclipse IDE on NetBeans and found that when i try to deploy project it's not creating ear file in JBoss 4.2 server/default/deploy directory. With Eclipse it works fine. Can anyone help me to solve this problem? Oh.. one more thing.. i'm using seam-gen to make a sceleton of a project. thanks in advice View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091167#4091167 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091167

18 years, 6 months

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[JBoss Seam] - Re: seam generate-entities failure

by max.andersen＠jboss.com

what is the DDL for that table ? apparently mysql is not returning a sql type that we have mapped. to workaround it you can adjust the reveng.xml file to include mappings from the column type to the relevant hibernate type you actually want. (see tools.hibernate.org for docs about reveng.xml) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091166#4091166 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091166

18 years, 6 months

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[JBoss Seam] - Re: Accessing HttpSession in Jboss Seam

by smithbstl

I don't think this is really a Seam issue but rather JSF FacesContext context = FacesContext.getCurrentInstance(); | HttpSession session = (HttpSession) context.getExternalContext().getSession(false); Of course you can use a Seam API to get the FacesContext org.jboss.seam.core.FacesContext View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091165#4091165 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091165

18 years, 6 months

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[JBoss Seam] - Re: SeamTest and expectedExceptions

by matt.drees

This one addresses the issue, I think: http://jira.jboss.com/jira/browse/JBSEAM-1190 I don't think I understand Gavin's last comment, though. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091163#4091163 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091163

18 years, 6 months

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[JBoss Seam] - Re: Problems with migration to 2.0

by dustismo

I use jfreechart throughout my application. All the components are packaged regularly in the .jar file. (the whole package is an .ear). More experimenting shows it is not jfreechart only (if I comment out the @Name("chartGraphPage") then it dies on the next component). It exceptions on any of my classes that include anything from the war/WEB-INF/lib. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091161#4091161 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4091161

18 years, 6 months

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jboss-user October 2007