Problem

-- to troubleshoot memory issues such as a possible memory leak, we sometimes need to generate an hprof dump of the java process (trading engine, control node etc..)

-- how to generate this dump ?

Resolution

This example is for the trading engine node. Similar procedure applies to other Interchange nodes

* find the TE node Process ID (PID) by running:

> ps -ef | grep java | grep -e "-Daxway.cluster.node.type=TE"

Note: The PID is the number that appears right after the username in the output

* create and configure dumps folder - Ex : /home/<username>/dumps

* set permissions :

> chmod 777 dumps

* Generate heap dump - Two options:

Manual dump:

- navigate to /root/Axway/Interchange/jre/bin

- run: ./jmap -dump:format=b,file=/home/<userhome>/dumps/dumpHeap-NodeTE.hprof <PID>

Automatic dump on OutOfMemory:

- edit: /<installation_path>/Axway/Interchange/conf/jvmArguments.xml

- under <NodeType type="TE" class="com.axway.clusterold.startup.Boot"> add:

<Option>XX:+HeapDumpOnOutOfMemoryError</Option> <Option>XX:HeapDumpPath=/home/<userhome>/dumps/heapOutOfMemory_TE.hprof</Option>