GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/9243
[SPARK-11271][Core] Use Spark BitSet instead of RoaringBitmap to reduce
memory usage
JIRA: https://issues.apache.org/jira/browse/SPARK-11271
As reported in the JIRA ticket, when there are too many tasks, the memory
usage of MapStatus will cause problem. Use BitSet instead of RoaringBitMap can
reduce the memory usage.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 mapstatus-bitset
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9243.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #9243
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commit 392975d3b5c48bc61bfa6caff7bfd23b9e095cde
Author: Liang-Chi Hsieh <vii...@appier.com>
Date: 2015-10-23T07:59:17Z
Use Spark BitSet instead of RoaringBitmap to reduce memory usage.
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