Ian Evans wrote:
> Any ideas why the user is seeing this behavior with the Timer service?
The EJB Timer Service is not targeted towards very fine-grained
timeouts, so there's a default minimum timeout interval of 7 ms defined
within Glassfish. That property can be changed via the
minimum-delivery-interval-in-millis attribute in domain.xml.
--ken
>
> -ian
>
> ------------------------------------------------------------------------
>
> Subject:
> [Fwd: Java EE Tutorial Feedback - Programming Question]
> From:
> Eric Jendrock <Eric.Jendrock_at_Sun.COM>
> Date:
> Tue, 28 Aug 2007 12:48:59 -0400
> To:
> Ian Evans <Ian.Evans_at_sun.com>
>
> To:
> Ian Evans <Ian.Evans_at_sun.com>
>
>
> You want to field this one? Here's a case where a user is taking your
> basic example, timersession, and is trying to extend/enhance it. (But
> she's encountering problems.) If you solve the problem, maybe it is
> worth a look into whether you want to add it as an enhancement to the
> example?
>
> ~Eric
>
> ------------------------------------------------------------------------
>
> Subject:
> Java EE Tutorial Feedback - Programming Question
> From:
> amitabak_at_gmail.com
> Date:
> Tue, 28 Aug 2007 08:50:32 -0700 (PDT)
> To:
> j2eetutorial-feedback_at_sun.com
>
> To:
> j2eetutorial-feedback_at_sun.com
>
>
>name: Ami Tabak
>url: http://java.sun.com/javaee/5/docs/tutorial/doc/Session4.html
>chapter: SessionBean
>tutorial_version: EE 5
>comments: I run the timersession example.
>As to try a more real life example I then changed the TimerSessionBean so instead of a single event the timer will run a repeatative mode. I did that by changing the code to:
> Timer timer = timerService.createTimer(0, intervalDuration, "Created new timer");
>As to follow up on the accuracy of the events I've enhanced the log to:
>logger.info(System.currentTimeMillis() + ": Timeout occurred");
>
>The client doClient method is configured to call the bean with a value of 3000[mSec]
>
>To my suprise the events are triggered every 7[sec] rather then 3[sec]
>
>1188315664484: Timeout occurred
>1188315671562: Timeout occurred
>1188315678578: Timeout occurred
>1188315685578: Timeout occurred
>1188315692593: Timeout occurred
>
>I've run similar Time mechansims based on MBean infrastructure and it workes perfectly so the issue is not with the hardware / OS / JVM.
>
>Any suggestions
>
>Best regards
>
>Ami Tabak
>mailfrom: amitabak_at_gmail.com
>mailsubject: Java EE Tutorial Feedback - Programming Question
>thanks_url: http://java.sun.com/javaee/5/docs/tutorial/information/auto-reply.html
>category: javaee
>Time Stamp: Tue Aug 28 08:42:21 PDT 2007
>Feedback Page Referer: http://java.sun.com/javaee/5/docs/tutorial/doc/Session4.html
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