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The -Xms value specifies the minimum heap size the JVM should start with and -Xmx is the maximum heap size it can grow. The previous fix imposed minimum limit of 1G which is unreasonably for small deployments. The fix is to start with 256MB and limit to 2G for cloudstack-agent process. This was tested on DevCloud/KVM and then again on a ACS/KVM deployment on real hardware. With these values, it's possible for the agent to work in a DevCloud/KVM environment and if JVM needs it can increase the heap size to 2G. The fix also ports these settings to Debian cloud-agent init.d script as well. Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com> (cherry picked from commit bb81082e58d90da9971b7e06f4c3f8639446b2d2) Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>