GitHub user tedyu opened a pull request:
https://github.com/apache/spark/pull/12776
Use ConcurrentHashMap in place of HashMap for NewAccumulator.originals
## What changes were proposed in this pull request?
This PR proposes to use ConcurrentHashMap in place of HashMap for
NewAccumulator.originals
## How was this patch tested?
Existing unit test suite
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tedyu/spark master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12776.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 #12776
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commit f8eb88ea8ba11df955d05a52e5cf1f6037512842
Author: tedyu <yuzhih...@gmail.com>
Date: 2016-04-29T08:46:56Z
Use ConcurrentHashMap in place of HashMap for NewAccumulator.originals
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