That option is not available in Java 6. With Java 6, you can use jmap to take a heap dump.
Bill On Thu, Jun 3, 2010 at 9:12 AM, Kaushal Shriyan <kaushalshri...@gmail.com>wrote: > Hi, > > I am running tomcat 5.5.27 on ubuntu 8.04, java version is > > java -version > java version "1.6.0_06" > Java(TM) SE Runtime Environment (build 1.6.0_06-b02) > Java HotSpot(TM) 64-Bit Server VM (build 10.0-b22, mixed mode) > > I did added JAVA_OPTS="-Xms512m -Xmx4500m -XX:+HeapDumpOnCtrlBreak > -XX:+HeapDumpOnOutOfMemoryError" on tomcat init script > > Unrecognized VM option '+HeapDumpOnCtrlBreak' > Could not create the Java virtual machine. > done. > > > Please suggest > > Thanks, > > Kaushal >
