GitHub user ajbozarth opened a pull request:
https://github.com/apache/spark/pull/10405
[SPARK-12339] [WebUI] Added a null check that was removed in SPARK-11206
Updates made in SPARK-11206 missed an edge case which cause's a
NullPointerException when a task is killed. In some cases when a task ends in
failure taskMetrics is initialized as null (see
JobProgressListener.onTaskEnd()). To address this a null check was added.
Before the changes in SPARK-11206 this null check was called at the start of
the updateTaskAccumulatorValues() function.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ajbozarth/spark spark12339
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/10405.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 #10405
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commit 0a4655999772eed9296de438a61319765389e588
Author: Alex Bozarth <ajboz...@us.ibm.com>
Date: 2015-12-20T02:54:53Z
Added null check that was removed in SPARK-11206
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