After installing/upgrading to LMT/TAD4D 7.5 the application is failing to perform some very memory consuming tasks like: Software Catalog import, Aggregation, Recalculation.
This may especially affect the users using LMT/TAD4D sever based on embedded WebSphere Application Server (eWAS).
By default 'Maximum heap size' for JVM is set to 1024 MB.
In some cases this value may not be sufficient to perform complicated calculations - especially on environments with large number of agents reporting a wide range of software products.
In WAS(TIP) logs, a similar exception can be seen:
Alarm/Timer threw exception commonj.work.WorkCompletedException:
Caused by: java.lang.OutOfMemoryError
It is recommended to increase this value to at least 2048 MB.
You can increase the WebSphere JVM heap size, by navigating from Tivoli Integrated Portal to:
> Settings -> WebSphere Administrative Console -> Launch console
In the WebSphere web console, select:
>Servers -> Server Types -> WebSphere application servers -> server_name->
Server Infrastructure -> Java and Process Management -> Process definition ->
In Additional Properties section, select Java Virtual Machine and increase the value for "Maximum heap size".
In cases where the panel is not available to the user (for example after upgrading TIP to 18.104.22.168)
you can use the following workaround:
- please search for server.xml file in path like <eWAS_dir>/profiles/profile_name/config/cells/cell_name/nodes/node_name/servers/server1/
- you should find information similar to the following:
verboseModeClass="false" verboseModeGarbageCollection="false" verboseModeJNI="false" initialHeapSize="256" maximumHeapSize="1024" runHProf="false" hprofArguments="" debugMode="false" debugArgs="-Djava.compiler=NONE -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=11078" genericJvmArguments="">
- please check the values for initialHeapSize (should be set at 256) and maximumHeapSize (1024). It is recommended to increase the value of maximumHeapSize to at least 2048 MB.
After performing these changes please restart the server.