nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Memory leak when birt runtime is restarted / undeployed

donino

<p>Hi, </p><p> </p><div>When we restart a J2EE application embedding a birt runtime (i tried from v3.7 to v4.3.2), there is a large memory leak in "PermGen" memory of the application server such Tomcat or jBoss. Both Eclipse WebViewer and apparently the toolkit viewer have this problem: if we restart them a few times in Tomcat we quickly run OutOfMemory.</div><div> </div><div>In fact all classes are kept in memory, we loose about 50Mb each time we restart / undeploy the application. I reported this issue 2 years ago as <a data-ipb='nomediaparse' href='https://bugs.eclipse.org/bugs/show_bug.cgi?id=373761'>bug 373761</a>, does anyone have news about it? Or is it considered as an unavoidable behavior that we should deal with?</div><div> </div><div>Unfortunately the ability to restart applications separately is a key point in many J2EE contexts, and sometimes applications are rejected because of this. Please let me know if i missed something, and how i could help to investigate and fix this problem. </div><div> </div><div>Thanks!</div>

Find more posts tagged with

Comments

mwilliams

<p>It looks like you had a good response to this bug filing. Hopefully they'll get to your new post soon. You say you're having the issue with BIRT Viewer Toolkit both? When did you download the Toolkit? A new release was put out not too long ago. I don't know that this solved this issue, but you never know. If you confirm it's still happening with the latest release, I can file an internal bug report for the BVT.</p><p> </p><p>The source is also available if you want to investigate the leak. If you find it, you could always propose a patch.</p>

donino

<p>Hi Michael,</p><p> </p><p>Thank you for your reply. In the meantime i got a few snapshots of the WebViewer 4.3.2, for each one Eclipse Memory Analyzer says the classloader can't be garbaged because 5 threads are still alive when a BIRT platform has been shutdowned. Here they are:</p><p> </p><p>

mwilliams

<p>Yeah. If the issue is resolved with the BIRT Engine, the next release of the BIRT Viewer Toolkit would have the fix.</p><p> </p><p>You can download the current build of 4.4 to test, from eclipse.org/birt.</p>