GitHub user jinxing64 opened a pull request:
https://github.com/apache/spark/pull/17112
Measurement for SPARK-16929.
## What changes were proposed in this pull request?
This pr doesn't target for merging. It's a measurement for
https://github.com/apache/spark/pull/16867, in which store successful taskIds
in `successfulTaskIdsSet` in `TreeSet`, thus the time complexity is O(n/2) when
get median duration in `checkSpeculatableTasks`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jinxing64/spark SPARK-16929-measurement
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17112.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 #17112
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commit 6825bd741933df9bc25b1dd87080b3edfd2a3e30
Author: jinxing <jinxing6...@126.com>
Date: 2017-03-01T02:50:19Z
Measurement for SPARK-16929.
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