GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/5465
[SPARK-6858][SQL] Register Java HashMap for SparkSqlSerializer
Since now kyro serializer is used for `GeneralHashedRelation` whether kyro
is enabled or not, it is better to register Java `HashMap` in
`SparkSqlSerializer`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 register_hashmap
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/5465.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 #5465
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commit 9062601c22c4b6b61303ffc27fa12b1c611978e5
Author: Liang-Chi Hsieh <[email protected]>
Date: 2015-04-11T08:30:39Z
Register Java HashMap for SparkSqlSerializer.
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