AW: Orion running out of memory ?
Hi, the problem of the maximum number of instances has been fixed some time ago. You have to provide an orion-ejb-jar.xml along with the ejb-jar.xml to give the server the information, how much instances for each EJB type may be used (without this, there seems to be no limit, only timeouts). It should look like this. http://www.orionserver.com/dtds/orion-ejb-jar.dtd";> ... After you added this to your application, you should delete the application-deployment files and restart the server. While deploying the application, it should say something like "Copied deployment descriptor to ...". You can check it looking on the orion-ejb-jar.xml generated by the server among the deployed files: if your settings are in there (amongst others, automatically generated), everything works. Unfortunately there is no overall setting for all entity bean instances or, even better, a simple memory limit, which lets orion begin to free some (old) instances. You'll have to experiment with the number of instances and your application to see how it scales. My tip: choose a very high timeout and play around with the max-instances settings until you are satisfied with memory consumption. Regards, Jens Stutte > -Ursprüngliche Nachricht- > Von: Michael Jara [mailto:[EMAIL PROTECTED]] > Gesendet am: Mittwoch, 30. Mai 2001 20:40 > An: Orion-Interest > Betreff: Re: Orion running out of memory ? > > We have had similar problems, using Orion 1.4.5. > > The first problem seems to be that Orion does not re-use > instances... I > beleive that the orion-ejb-jar.xml defaults to allow an > infinite number of > instances per EJB. If you are creating a lot of instances, > this might help > your problem. > > The second problem seems to relate to bug#251. If you are performing > operations on entity beans, you might try setting their > "reentrant" property > to "true" and see if the problem goes away. If that works, I > think it is a > short-term workaround at best... I'm not sure how Orion > handles entity bean > reentrancy. > > Has anyone found these problems to be fixed in later (beta) > versions of > Orion? > > Mike > > - Original Message - > From: "Tony Fonager" <[EMAIL PROTECTED]> > To: "Orion-Interest" <[EMAIL PROTECTED]> > Sent: Wednesday, May 30, 2001 5:50 AM > Subject: Orion running out of memory ? > > > > I have a test website project, running on Orionserver - > after running for > > maybe 15-20 hours, it suddently stops working, with the > message : "Out of > > Memory - No Stack Trace Available" > > > > Is there some setting, where I setup the amount of memory for the > > Orionserver ? > > > > I have monitored "memory usage" and it keeps growing during the test > period, > > until it suddently stops working, with the above memory error. > > > > What can I do - either there is a leak or it uses > incredible much memory. > > > > (I dont use any objects, which earlier has been mentioned > on this list for > > leaking!) > > > > Any ideas, people ? > > > > > > - > > Regards, > > Tony Fonager > > > > Netcoders ApS - http://www.netcoders.dk > > > >
Re: Orion running out of memory ?
edit the orion-ejb-jar.xml file in /$ORION_HOME$/application-deployments/$YOUR_PROJECT$-ejb.jar directory. set the attribute max-instances='x' in all the EJBs deployed, where x is the maximum number of EJBs you allow in memory at any time. this will prevent your system from running out of memory. i've included a sample line below (taken from the orion-ejb-jar.xml file): > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, May 30, 2001 1:51 PM > To: [EMAIL PROTECTED] > Subject: Orion running out of memory ? > > > I have a test website project, running on Orionserver - after running for > maybe 15-20 hours, it suddently stops working, with the message : "Out of > Memory - No Stack Trace Available" > > Is there some setting, where I setup the amount of memory for the > Orionserver ? > > I have monitored "memory usage" and it keeps growing during the test period, > until it suddently stops working, with the above memory error. > > What can I do - either there is a leak or it uses incredible much memory. > > (I dont use any objects, which earlier has been mentioned on this list for > leaking!) > > Any ideas, people ? > > > - > Regards, > Tony Fonager > > Netcoders ApS - http://www.netcoders.dk
Re: Orion running out of memory ?
We have had similar problems, using Orion 1.4.5. The first problem seems to be that Orion does not re-use instances... I beleive that the orion-ejb-jar.xml defaults to allow an infinite number of instances per EJB. If you are creating a lot of instances, this might help your problem. The second problem seems to relate to bug#251. If you are performing operations on entity beans, you might try setting their "reentrant" property to "true" and see if the problem goes away. If that works, I think it is a short-term workaround at best... I'm not sure how Orion handles entity bean reentrancy. Has anyone found these problems to be fixed in later (beta) versions of Orion? Mike - Original Message - From: "Tony Fonager" <[EMAIL PROTECTED]> To: "Orion-Interest" <[EMAIL PROTECTED]> Sent: Wednesday, May 30, 2001 5:50 AM Subject: Orion running out of memory ? > I have a test website project, running on Orionserver - after running for > maybe 15-20 hours, it suddently stops working, with the message : "Out of > Memory - No Stack Trace Available" > > Is there some setting, where I setup the amount of memory for the > Orionserver ? > > I have monitored "memory usage" and it keeps growing during the test period, > until it suddently stops working, with the above memory error. > > What can I do - either there is a leak or it uses incredible much memory. > > (I dont use any objects, which earlier has been mentioned on this list for > leaking!) > > Any ideas, people ? > > > - > Regards, > Tony Fonager > > Netcoders ApS - http://www.netcoders.dk >
Re: Orion running out of memory ?
Java? Memory leak? Um, not likely. Make sure you don't have some kind of infinite loop in your application. I did that once, and got the error after Orion grew to 512MB of RAM, used up all the swap space too, then orion tried to recover and it couldn't. If you ask me, I think it does a good job of handling situations like that. If you don't have an infinite loop, try to 'force' a garbage collect at some point in your test and see if it helps. Hey but what the heck do I know, I'm just a rookie. R At 01:50 PM 5/30/2001 +0200, you wrote: >I have a test website project, running on Orionserver - after running for >maybe 15-20 hours, it suddently stops working, with the message : "Out of >Memory - No Stack Trace Available" > >Is there some setting, where I setup the amount of memory for the >Orionserver ? > >I have monitored "memory usage" and it keeps growing during the test period, >until it suddently stops working, with the above memory error. > >What can I do - either there is a leak or it uses incredible much memory. > >(I dont use any objects, which earlier has been mentioned on this list for >leaking!) > >Any ideas, people ? > > >- >Regards, >Tony Fonager > >Netcoders ApS - http://www.netcoders.dk Robert S. Sfeir Director of Software Development PERCEPTICON corporation San Francisco, CA 94123 w - http://www.percepticon.com/ e- [EMAIL PROTECTED] t - (415) 749-2900 x205
RE: Orion running out of memory ?
Try (just for a test) to have some servlet/ejb,... run from time to time a System.gc(); We have seen in our servlet-environments that free-memory would shrink in continuation... calling gc() from time to time would free the memory again. Cannot really explain the whereabouts, but it might work for you too. regards Alexander -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 1:51 PM To: [EMAIL PROTECTED] Subject: Orion running out of memory ? I have a test website project, running on Orionserver - after running for maybe 15-20 hours, it suddently stops working, with the message : "Out of Memory - No Stack Trace Available" Is there some setting, where I setup the amount of memory for the Orionserver ? I have monitored "memory usage" and it keeps growing during the test period, until it suddently stops working, with the above memory error. What can I do - either there is a leak or it uses incredible much memory. (I dont use any objects, which earlier has been mentioned on this list for leaking!) Any ideas, people ? - Regards, Tony Fonager Netcoders ApS - http://www.netcoders.dk
Orion running out of memory ?
I have a test website project, running on Orionserver - after running for maybe 15-20 hours, it suddently stops working, with the message : "Out of Memory - No Stack Trace Available" Is there some setting, where I setup the amount of memory for the Orionserver ? I have monitored "memory usage" and it keeps growing during the test period, until it suddently stops working, with the above memory error. What can I do - either there is a leak or it uses incredible much memory. (I dont use any objects, which earlier has been mentioned on this list for leaking!) Any ideas, people ? - Regards, Tony Fonager Netcoders ApS - http://www.netcoders.dk
