GitHub user bastiliu opened a pull request:

    https://github.com/apache/beam/pull/3819

    JStorm-runner: Performance improvement

    1. remove some logs on critical path
    2. register "TimestampedValue" in Kryo to reduce the serialized size of 
event value
    
    Follow this checklist to help us incorporate your contribution quickly and 
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/bastiliu/beam jstorm-runner

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/beam/pull/3819.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 #3819
    
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commit 43492000a49e81b6d9a2420148fb2df1735301b0
Author: basti.lj <[email protected]>
Date:   2017-09-08T04:19:49Z

    JStorm-runner: Performance improvement
    1. remove some logs on critical path
    2. register "TimestampedValue" in Kryo to reduce the serialized size of 
event value

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