[FLINK-934] Job and TaskManager startup scripts always set JVM heap size

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.6-incubating
• Assignee: Ufuk Celebi
• Reporter: Ufuk Celebi
• Created: 12/Jun/14 18:28
• Updated: 17/Jun/14 22:19
• Resolved: 13/Jun/14 14:38

Description

The default distribution config stratosphere-conf.yaml contains keys jobmanager.heap.mb and taskmanager.heap.mb for the heap sizes of the JobManager and TaskManager JVMs. If they are not set, config.sh has default values for them.

We always use one of these values and set the Xms and Xmx properties. After a short discussion with rmetzger and StephanEwen we actually expected that they should not be set if not found in stratosphere-conf.yaml. This would result in a fall back to the respective JVM default (imho 1/4th of the physical memory since Java 6).