GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/18301
[SPARK-21052][SQL][WIP] Add hash map metrics to join
## What changes were proposed in this pull request?
This adds the average hash map probe metrics to join operator such as
`BroadcastHashJoin` and `ShuffledHashJoin`.
This PR adds the API to `HashedRelation` to get average hash map probe.
## How was this patch tested?
Related test cases are added.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 SPARK-21052
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18301.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 #18301
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commit b320feb73ba3f4324ac6a2115375a63ed55cbdb5
Author: Liang-Chi Hsieh <[email protected]>
Date: 2017-06-11T13:19:04Z
Add hash map metrics to join.
commit babef4241b595fab5bca6dd3448a61d6a13005b1
Author: Liang-Chi Hsieh <[email protected]>
Date: 2017-06-14T03:04:03Z
Merge remote-tracking branch 'upstream/master' into SPARK-21052
commit 14e65e828a7ca58f32225581e8c07380dfb8999f
Author: Liang-Chi Hsieh <[email protected]>
Date: 2017-06-14T08:45:03Z
Add related test cases.
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