GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/4208
[SPARK-5355] use j.u.c.ConcurrentHashMap instead of TrieMap
j.u.c.ConcurrentHashMap is more battle tested.
cc @rxin @JoshRosen @pwendell
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark safe-conf
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/4208.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 #4208
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commit a1d769a34f2da210f5ff966ba0de8b225fd5bf2e
Author: Davies Liu <[email protected]>
Date: 2015-01-21T20:00:35Z
make SparkConf thread-safe
commit f8fa1cf4e94e0367ce126812eb3e434802e54df4
Author: Davies Liu <[email protected]>
Date: 2015-01-21T21:30:46Z
change to TrieMap
commit ae4d305eb96f8d4f9d08b08ba2c7f590b196494d
Author: Davies Liu <[email protected]>
Date: 2015-01-22T01:16:52Z
change to j.u.c.ConcurrentMap
commit da14ced75e1413e8c107b58388f99a3cbcae1acd
Author: Davies Liu <[email protected]>
Date: 2015-01-26T16:31:28Z
Merge branch 'master' of github.com:apache/spark into safe-conf
Conflicts:
core/src/main/scala/org/apache/spark/SparkConf.scala
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