GitHub user wgtmac opened a pull request:
https://github.com/apache/spark/pull/15303
changed implementation of HistoryServer.getApplicationInfoList for lazy
evaluation
## What changes were proposed in this pull request?
Changed implementation of HistoryServer.getApplicationInfoList() to lazily
evaluation the time-consuming transformation. In this way,
ApplicationListResource can return an iterator without evaluating the whole
input iterator.
## How was this patch tested?
No API added. Just manual unit tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wgtmac/spark SPARK-17671-merged
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15303.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 #15303
----
commit fbf1a65ce7c3f7b9020d4a22031febafd331b526
Author: Gang Wu <wgt...@uber.com>
Date: 2016-09-29T20:51:37Z
changed implementation of HistoryServer.getApplicationInfoList for lazy
evaluation
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