GitHub user zhengruifeng opened a pull request:
https://github.com/apache/spark/pull/18154
[SPARK-20932][ML]CountVectorizer support handle persistence
## What changes were proposed in this pull request?
unpersist RDDs `input` & `wordCounts` after computation
## How was this patch tested?
existing tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zhengruifeng/spark CountVectorizer_unpsersit
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18154.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 #18154
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commit f7c54421ba02e5dead1b638233d008ac6cdad2af
Author: Zheng RuiFeng <ruife...@foxmail.com>
Date: 2017-05-31T04:04:40Z
create pr
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