Support Article
Could not reserve enough space for object heap
SA-5440
Summary
Upgrading from PRPC 5.5 SP1 to Pega 7.1.7 generated the following error when starting the Java Virtual Machine (JVM) to import updates.
Error Messages
[java] Error occurred during initialization of VM
[java] Could not reserve enough space for object heap
[java] Could not create the Java virtual machine.
Steps to Reproduce
Upgrade and start the JVM.
Root Cause
A defect or configuration issue in the operating environment:
There was insufficient memory on the machine to allocate the JVM.
Resolution
Make the following change to the operating environment:
- Resume upgrade on a machine with sufficient memory to allocate the JVM.
- Set the -Xms JVM argument to 512 m.
Published November 8, 2016 - Updated October 8, 2020
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