Hi Kristof, there is no such mechanism as far as I know. Instead of terminating the threads that are idling, they are suspended, in order to be resumed if required. They could be self-terminating, but creating a new thread is quite resource intensive and it is better to reuse existing threads (in nearly every case). This is most likely the reason why the number does never decrease.
I assume that you will have the same results if creating a new empty WebObjects Application if refreshing its main page as fast as possible in the browser (maybe a Thread.sleep(1000) will be required every time a session is created in order to enforce "concurrency"). Andri >>> Kristof Cossement <kristof.cossem...@nss.be> schrieb am Mittwoch, 14. Oktober 2009 um 14:06 in Nachricht <ae12cf24-ffe4-41cc-afe8-5443e1d69...@nss.be>: > Hi all, > > when deploying a webobjects app, we can see the min and max number of > WOWorkerThread specified by variables 'WOWorkerThreadCountMin' and > 'WOWorkerThreadCountMax' > > root 43233 0.1 1,5 2612824 498428 ?? R Mi10am > 160:15.03 /usr/bin/java -XX:NewSize=2m -Xmx64m -Xms32m - > DWORootDirectory=/System -DWOLocalRootDirectory= -DWOUserDirectory=/ > System/Library/WebObjects/JavaApplications/wotaskd.woa - > DWOEnvClassPath= -DWOApplicationClass=Application -DWOPlatform=MacOS - > Dcom.webobjects.pid=43233 -Xms512m -Xmx2048m -DWOHost=192.168.11.8 - > DDatabasePoolSize=20 -classpath WOBootstrap.jar > com.webobjects._bootstrap.WOBootstrap -WOPort 12346 -WOCachingEnabled > YES -WODebuggingEnabled NO -WOOutputPath /Library/WebObjects/Logs/ > AdvitServer-1 -WOAutoOpenInBrowser NO -WOAutoOpenClientApplication NO - > WOLifebeatInterval 30 -WOLifebeatEnabled YES - > WOLifebeatDestinationPort 1085 -WOAdaptor WODefaultAdaptor - > WOWorkerThreadCount 8 -WOListenQueueSize 128 -WOWorkerThreadCountMin > 16 -WOWorkerThreadCountMax 256 -NSProjectSearchPath () - > WOSessionTimeOut 3600 -WOApplicationName AdvitServer -WOMonitorEnabled > YES -WONoPause YES -DWOHost=192.168.11.8 -DDatabasePoolSize=20 > > > At some point, the number of threads in my application is 326, of > which 256 of them are WOWorkerThread's (dumped the threads with jstack) > > Even if load decreases, the 256 WOWorkerThread's do not disappear > anymore, it seems once created, they don't get released anymore. > > Is there a mechanism in WebObjects that should release > WOWorkerThread's when not needed anymore ? > > > greetz > > Kristof > > Looking for Web-to-Print Solutions? > Visit our website : http://www.vit2print.com > > > This e-mail, and any attachments thereto, is intended only for use by the > addressee(s) named herein and may contain legally privileged and/or > confidential information and/or information protected by intellectual > property rights. > If you are not the intended recipient, please note that any review, > dissemination, disclosure, alteration, printing, copying or transmission of > this e-mail and/or any file transmitted with it, is strictly prohibited and > may be unlawful. > If you have received this e-mail by mistake, please immediately notify the > sender and permanently delete the original as well as any copy of any e-mail > and any printout thereof. > We may monitor e-mail to and from our network. > > NSS nv Tieltstraat 167 8740 Pittem Belgium --- Disclaimer: --------------------------------------------------------- This email and contents is for use only by the intended recipient. If you are not the individual or entity to whom it is addressed, you are hereby formally notified that any use, copying or distribution of this email and attachments, in whole or in part, is strictly prohibited. If you have received this email in error, please notify the sender and delete the message and attachment(s) from your system. Any views, opinions or information, expressed or contained in this email, are those of the sender and not necessarily reflect those of CEDES. To help protect our environment, please avoid printing out this information unnecessarily. _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
