Solution : https://service.sap.com/sap/support/notes/1406549 (SAP Service marketplace login required)
Key words :
'cluster-data'->'instance_idxxxxxxx'->'server_idxxxxxxxxx'-> general-xms2048m initial heap size-xmx2048m maximum heap size-xconcurrentbackground1 controls, -xmx1024m maximum heap size'cluster-data'->'instance_idxxxxxxx'->'dispatcher_idxxxxxxxxx'-> 'general', -xms200m initial heap size -xmx200m maximum heap size -verbose, running '/opt/ibmjava2-ppc64-142/jre/bin/java -fullversion', application'cluster-data'->'instance_idxxxxxxx'->'message server & bootstrap', lang=en_us&source=swg-ibmjavaisvthe access key, shorten gc pause times-xconcurrentlevel6 controls, starting concurrent gc work-xsoftrefthreshold0 controls, softreferences survive-xconmeter2 instructive parameter, xgccon garbagecollector output inclusive additional
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