[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-2864) Injection not working with concurrent clients

Wed Apr 9 08:49:54 EDT 2008

    [ http://jira.jboss.com/jira/browse/JBSEAM-2864?page=comments#action_12407879 ] 

Marcell Barbacena commented on JBSEAM-2864:
-------------------------------------------

This example project only use GET requests, my real production project uses GET and POST (as you imagine) and my load test do test this having the bug appearing as well. Then it is not a problem with GET request only.

> Injection not working with concurrent clients
> ---------------------------------------------
>
>                 Key: JBSEAM-2864
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-2864
>             Project: JBoss Seam
>          Issue Type: Bug
>          Components: Core, Performance and Scalability
>    Affects Versions: 2.0.1.CR1, 2.0.1.CR2, 2.0.1.GA
>         Environment: Jboss AS 4.2.2.GA, Windows
>            Reporter: Marcell Barbacena
>         Attachments: myproject.zip, Performance.jmx
>
>
> When I was loading testing my application I was getting some NPE.
> I narrowed down the error and created the example app based on a seam-gen one (just stripped the lib directory).
> Basically, what I want to execute the place GET at the following URLs:
> http://localhost:8080/myproject/performance/startsession.seam
> http://localhost:8080/myproject/performance/start.seam
> http://localhost:8080/myproject/performance/search.seam?parameter=1&cid=2
> http://localhost:8080/myproject/performance/end.seam?cid=2
> If after you start jboss you execute the above it goes ok. The debug page shows that the long-running conversation is gone and everything is ok.
> Then I created a JMeter test, just capturing the "cid" from start, and use it at search and end page (see attached jmeter test). If you run the script with 1 thread no loop, it goes ok. If you run with 5 (in my pc) it goes ok. But when you put more then 20, it starts to get NPE at SimpleAction#search when it calls the DAO.
> The log at search.xhtml shows the error and the sysos at SimpleAction#search shows it as well.
> Please, provide a workaround in 2.0.1.CR1.

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