GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/11163
[SPARK-13234] [SQL] remove duplicated SQL metrics
For lots of SQL operators, we have metrics for both of input and output,
the number of input rows should be exactly the number of output rows of child,
we could only have metrics for output rows.
After we improved the performance using whole stage codegen, the overhead
of SQL metrics are not trivial anymore, we should avoid that if it's not
necessary.
This PR remove all the SQL metrics for number of input rows, add SQL metric
of number of output rows for all LeafNode. All remove the SQL metrics from
those operators that have the same number of rows from input and output (for
example, Projection, we may don't need that).
The new SQL UI will looks like:
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark remove_metrics
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11163.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 #11163
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commit 319f30d9bad3e32d793a6325e545cb5acdacd911
Author: Davies Liu <[email protected]>
Date: 2016-02-10T23:10:16Z
remove duplicated SQL metrics
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