GitHub user ajbozarth opened a pull request:
https://github.com/apache/spark/pull/14673
[SPARK-15083] [Web UI] History Server can OOM due to unlimited TaskUIData
## What changes were proposed in this pull request?
Based on #12990 by @tankkyo
Since the History Server currently loads all application's data it can OOM
if too many applications have a significant task count. `spark.ui.trimTasks`
(default: false) can be set to true to trim tasks by `spark.ui.retainedTasks`
(default: 10000)
(This is a "quick fix" to help those running into the problem until a
update of how the history server loads app data can be done)
## How was this patch tested?
Manual testing and dev/run-tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ajbozarth/spark spark15083
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14673.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 #14673
----
commit d0aeae6d8c9b623a2f2966af8803c3d7933f6c51
Author: Alex Bozarth <[email protected]>
Date: 2016-08-12T21:37:48Z
Added optonal task trimming (based on @tankkyo code)
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