Unrecognized VM option '+HeapDumpOnCtrlBreak'

2010-06-03 Thread Kaushal Shriyan 
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

Re: Unrecognized VM option '+HeapDumpOnCtrlBreak'

2010-06-03 Thread Bill Au 
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.comwrote:

 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

Re: Unrecognized VM option '+HeapDumpOnCtrlBreak'

2010-06-03 Thread Kaushal Shriyan 
On Thu, Jun 3, 2010 at 6:55 PM, Bill Au bill.w...@gmail.com wrote:

 That option is not available in Java 6.  With Java 6, you can use jmap to
 take a heap dump.

 Bill


Hi Bill

Please let me know the jmap option to take a heap dump

Thanks,

Kaushal

RE: Unrecognized VM option '+HeapDumpOnCtrlBreak'

2010-06-03 Thread Caldarale, Charles R 
 From: Kaushal Shriyan [mailto:kaushalshri...@gmail.com]
 Subject: Re: Unrecognized VM option '+HeapDumpOnCtrlBreak'
 
 Please let me know the jmap option to take a heap dump

Please do a little work on your own.
http://www.lmgtfy.com/?q=jmap+heap+dump

 - Chuck


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