GitHub user sitalkedia opened a pull request:
https://github.com/apache/spark/pull/17485
[SPARK-20163] Kill all running tasks in a stage in case of fetch failure
## What changes were proposed in this pull request?
Currently, the scheduler does not kill the running tasks in a stage when it
encounters fetch failure, as a result, we might end up running many duplicate
tasks in the cluster. There is already a TODO in TaskSetManager to kill all
running tasks which has not been implemented.
## How was this patch tested?
Unit tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sitalkedia/spark kill_tasks_on_stage_failure
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17485.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 #17485
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commit ec2ac3484330547b4bd7c756ad9123f6c5b2931b
Author: Sital Kedia <ske...@fb.com>
Date: 2017-03-30T20:38:02Z
[SPARK-20163] Kill all running tasks in a stage in case of fetch failure
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