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Trying To Increase The Maximum Heap Size To 8GB (Doc ID 1026225.1)

Last updated on APRIL 02, 2021

Applies to:

Oracle Java CAPS Enterprise Service Bus - Version R6 and later
Information in this document applies to any platform.
IBM AIX on POWER Systems (64-bit)
***Checked for relevance on 20-Mar-2012***
***Checked for relevance on 20-Aug-2013***


When trying to increase the Maximum Heap Size (-Xmx) to a value over 2Gb, the JVM fails to start:

$ ./startserv
admin username:admin
admin password: xxxx
master password: xxxx
Redirecting output to /sbcert/jcaps61/appserver/domains/domainCIH/logs/server.log
JVMJ9GC028E Option too large: '-Xmx8192m'
JVMJ9VM015W Initialization error for library j9gc23(2): Failed to initialize, parsing command line
Could not create the Java virtual machine.


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