GitHub user JoshRosen opened a pull request:
https://github.com/apache/spark/pull/11276
[SPARK-13407] Guard against garbage-collected accumulators in
TaskMetrics.fromAccumulatorUpdates
`TaskMetrics.fromAccumulatorUpdates()` can fail if accumulators have been
garbage-collected on the driver. To guard against this, this patch introduces
`ListenerTaskMetrics`, a subclass of `TaskMetrics` which is used only in
`TaskMetrics.fromAccumulatorUpdates()` and which eliminates the need to access
the original accumulators on the driver.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/JoshRosen/spark accum-updates-fix
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11276.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 #11276
----
commit a0e4e99abcc4f8b84f3c08ac22ffefe4a03f6ddf
Author: Josh Rosen <[email protected]>
Date: 2016-02-19T20:29:41Z
[SPARK-13407] Guard against garbage-collected accumulators in
TaskMetrics.fromAccumulatorUpdates()
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