> From: André Warnier [mailto:a...@ice-sa.com] > Subject: Re: CLOSE_WAIT and what to do about it > > Relatedly, does there exist any way to force a given > JVM process to do a full GC interactively, but from a > Linux command-line ?
Found a command line tool that will do what you want: http://code.google.com/p/jmxsh/ I've used it to trigger a GC in Tomcat via the following steps. 1) Start Tomcat with the following options: -Dcom.sun.management.jmxremote.port=<port> -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false (You can, of course, set the authentication and SSL options as needed.) 2) Start jmxsh from the directory its jar is in with this: java -jar jmxsh*.jar 3) Enter the following commands (but not the bracketed bits): jmx_connect -h localhost -p <port> [blank line to enter browse mode] 5 [selects java.lang] 1 [selects the Memory mbean] 5 [performs a GC] The doc for jmxsh indicates the above steps should be scriptable, but I haven't tried that. It is likely that you could use jmx_connect with a different kind of service and avoid opening up an RMI port; if I figure that out, I'll let you know. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
