GitHub user ankurdave opened a pull request:
https://github.com/apache/spark/pull/885
[SPARK-1931] Reconstruct routing tables in Graph.partitionBy
905173df57b90f90ebafb22e43f55164445330e6 introduced a bug in partitionBy
where, after repartitioning the edges, it reuses the VertexRDD without
updating the routing tables to reflect the new edge layout. Subsequent
accesses of the triplets contain nulls for many vertex properties.
This commit adds a test for this bug and fixes it by introducing
`VertexRDD#withEdges` and calling it in `partitionBy`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ankurdave/spark SPARK-1931
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/885.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 #885
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commit 9bdbaa41a4b93caf3352089b59704231bd4be8ef
Author: Ankur Dave <[email protected]>
Date: 2014-05-26T16:35:02Z
[SPARK-1931] Reconstruct routing tables in Graph.partitionBy
905173df57b90f90ebafb22e43f55164445330e6 introduced a bug in partitionBy
where, after repartitioning the edges, it reuses the VertexRDD without
updating the routing tables to reflect the new edge layout. Subsequent
accesses of the triplets contain nulls for many vertex properties.
This commit adds a test for this bug and fixes it by introducing
`VertexRDD#withEdges` and calling it in `partitionBy`.
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