Matt Whelan created SPARK-5841:
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Summary: Memory leak in DiskBlockManager
Key: SPARK-5841
URL: https://issues.apache.org/jira/browse/SPARK-5841
Project: Spark
Issue Type: Bug
Components: Block Manager
Affects Versions: 1.2.1
Reporter: Matt Whelan
DiskBlockManager registers a Runtime shutdown hook, which creates a hard
reference to the entire Driver ActorSystem. If a long-running JVM repeatedly
creates and destroys SparkContext instances, it leaks memory.
I suggest we deregister the shutdown hook if DiskBlockManager.stop is called.
It's redundant at that point.
PR coming.
See also
http://mail-archives.apache.org/mod_mbox/spark-user/201501.mbox/%3CCA+kjH+w_DDTEBE9XB6NrPxLTUXD=nc_d-3ogxtumk_5v-e0...@mail.gmail.com%3E
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