GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/20493
[SPARK-23326][WEBUI]schedulerDelay should return 0 when the task is running
## What changes were proposed in this pull request?
When a task is still running, metrics like executorRunTime are not
available. Then `schedulerDelay` will be almost the same as `duration` and
that's confusing.
This PR makes `schedulerDelay` return 0 when the task is running which is
the same behavior as 2.2.
## How was this patch tested?
`AppStatusUtilsSuite.schedulerDelay`
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark SPARK-23326
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20493.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 #20493
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commit 7889fb0e5e4515ade35c2a07703017e16ee6194a
Author: Shixiong Zhu <zsxwing@...>
Date: 2018-02-03T00:25:34Z
schedulerDelay should return 0 when the task is running
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