GitHub user zhagnlu opened a pull request:
https://github.com/apache/spark/pull/10785
https://issues.apache.org/jira/browse/SPARK-12838
there is a bug in PythonRDD.scala to cause a time gap betweeen worker.py
and PythonRdd.scala because the socket can't send the command's length and
command in time. if modified, the gap disappears. and I did some experiments
to valicate it .
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zhagnlu/spark master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/10785.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 #10785
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