GitHub user kayousterhout opened a pull request:
https://github.com/apache/spark/pull/13646
[SPARK-15927] Eliminate redundant DAGScheduler code.
## What changes were proposed in this pull request?
To try to eliminate redundant code to traverse the RDD dependency graph,
this PR creates a new function getShuffleDependencies that returns shuffle
dependencies that are immediate parents of a given RDD. This new function is
used by getParentStages and getAncestorShuffleDependencies.
cc @squito @markhamstra
FYI @rxin
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kayousterhout/spark-1 SPARK-15927
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13646.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 #13646
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commit 5078bb2037201cbcd51223d2acf971a7a7fcc0cb
Author: Kay Ousterhout <kayousterh...@gmail.com>
Date: 2016-06-10T23:12:02Z
[SPARK-15927] Eliminate redundant DAGScheduler code.
commit 42a8d16ed0b7e8175a58d1d6fa21685cc36c85c2
Author: Kay Ousterhout <kayousterh...@gmail.com>
Date: 2016-06-13T19:43:32Z
Improved method comment
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