GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/4023
[SPARK-5223] [MLlib] [PySpark] fix MapConverter and ListConverter in MLlib
It will introduce problems if the object in dict/list/tuple can not support
by py4j, such as Vector.
Also, pickle may have better performance for larger object (less RPC).
In some cases that the object in dict/list can not be pickled (such as
JavaObject), we should still use MapConvert/ListConvert.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark listconvert
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/4023.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 #4023
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commit 55d4ab27199fcfbae2a0c33afb83dfa4cf062fbd
Author: Davies Liu <[email protected]>
Date: 2015-01-13T18:31:55Z
fix MapConverter and ListConverter in MLlib
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