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Top Forums Programming Java code to access the shared heap Post 302361407 by frustrated1 on Tuesday 13th of October 2009 06:29:35 AM
Old 10-13-2009
Java code to access the shared heap

Hi

Help needed and forgive me as I dont know Java so please bare with me.
I have searched this site and google but was unable to locate the information I need.

An application that we use - is based on java and stores some performance counters etc internally in the shared JVM. They are not held in an oracle db etc

What I want to be able to do is access the shared area in JVM and write out the contents, I am not 100% sure how the counters are stored etc so I would need to access the entire JVM memory and write it to a file on the unix filesystem assuming thats even possible..

Can you help? SmilieSmilieSmilie


Server information:
java version "1.4.2_10"
Solaris 10
 

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asadmin-delete-jvm-options(1AS) 				   User Commands				   asadmin-delete-jvm-options(1AS)

NAME
asadmin-delete-jvm-options, delete-jvm-options - deletes the JVM options from the Java configuration or profilerelements SYNOPSIS
delete-jvm-options --user admin_user [--password admin_password] [--host localhost] [--port 4848] [--secure|-s] [--passwordfile filename] [--terse=false] [--echo=false] [--interactive=true] [--profiler=false] (jvm_option_name=jvm_option_value)[:jvm_option_name=jvm_option_value]* Deletes the JVM options in the Java configuration or Profiler elements of the domain.xml file. You can enter more than one JVM option sepa- rated by a colon (:) . If the JVM option starts with a dash (-) then use two dashes (--) before the operand to distinguish that JVM option is an operand and not an option. JVM options are used to record the settings needed to get a particular profiler going. OPTIONS
--user authorized domain application server administrative username. --password password to administer the domain application server. --host machine name where the domain application server is running. --port port number of the domain application server listening for administration requests. --secure if true, uses SSL/TLS to communicate with the domain application server. --passwordfile file containing the domain application server password. --terse indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well- formatted data for consumption by a script. Default is false. --echo setting to true will echo the command line statement on the standard output. Default is false. --interactive if set to true (default), only the required password options are prompted. --profiler indicates if the JVM options is for the profiler. Profiler must exist for this option to be true. OPERANDS
jvm_option_name=jvm_optithevleft side of the equal sign (=) is the JVM option name. The right side of the equal sign (=) is the jvm_option_value. Additionally, you can use ":" as a delimiter for more than one jvm-option. If the jvm-option con- tains a ":", use the escape character to offset the ":" delimiter. Example 1: Using delete-jvm-options with double dash (--) asadmin> delete-jvm-options --user admin --password adminadmin --host fuyako --port 7070 --profiler=true -- "-DDebug=true":"-Xmx256m":" -Dcom.sun.aas.imqBin"="/export/as7se/imq/bin" JVM options deleted Where the JVM options are created. The double dash (--) is used between --profiler options and the operand because - indicated the end of the options and the following text is the operand. The double dash (--) is necessary here since there are single dashes (i.e., --DDebug) in the operand. To distinguish between the options and the operand, the double dash (--) is used. EXIT STATUS
0 command executed successfully 1 error in executing the command asadmin-create-jvm-options(1AS) J2EE 1.4 SDK March 2004 asadmin-delete-jvm-options(1AS)
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