Michael Moss created SPARK-22567:
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Summary: spark.mesos.executor.memoryOverhead equivalent for the
Driver when running on Mesos
Key: SPARK-22567
URL: https://issues.apache.org/jira/browse/SPARK-22567
Project: Spark
Issue Type: Improvement
Components: Mesos
Affects Versions: 2.2.0
Reporter: Michael Moss
Priority: Minor
spark.mesos.executor.memoryOverhead is:
"The amount of additional memory, specified in MB, to be allocated per
executor. By default, the overhead will be larger of either 384 or 10% of
spark.executor.memory"
It is important for every JVM process to have memory available to it, beyond
its heap (Xmx) for native allocations.
When using the MesosClusterDispatcher and running the Driver on Mesos
(https://spark.apache.org/docs/latest/running-on-mesos.html#cluster-mode), it
appears that the Driver's mesos sandbox is allocated with the same amount of
memory (configured with spark.driver.memory) as the heap (Xmx) itself. This
increases the prevalence of OOM exceptions.
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