GitHub user wgtmac opened a pull request:
https://github.com/apache/spark/pull/15247
[SPARK-17672] Spark 2.0 history server web Ui takes too long for a single
application
## What changes were proposed in this pull request?
Added a new API getApplicationInfo(appId: String) in class
ApplicationHistoryProvider and class SparkUI to get app info. In this change,
FsHistoryProvider can directly fetch one app info in O(1) time complexity
compared to O(n) before the change which used an Iterator.find() interface.
Both ApplicationCache and OneApplicationResource classes adopt this new api.
## How was this patch tested?
manual tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wgtmac/spark SPARK-17671
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15247.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 #15247
----
commit db92f16cad0de0a5a022af75cff449094742a7b6
Author: Gang Wu <wgt...@uber.com>
Date: 2016-09-26T23:26:22Z
[SPARK-17672] Spark 2.0 history server web Ui takes too long for a single
application
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