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From dding3 <...@git.apache.org>
Subject [GitHub] spark pull request #15124: [SPARK-17559][MLLIB]persist edges if their storag...
Date Sat, 17 Sep 2016 01:21:13 GMT
GitHub user dding3 opened a pull request:

    https://github.com/apache/spark/pull/15124

    [SPARK-17559][MLLIB]persist edges if their storage level is non in PeriodicGraphCheckpointer

    ## What changes were proposed in this pull request?
    When use PeriodicGraphCheckpointer to persist graph, sometimes the edges isn't persisted.
As currently only when vertices's storage level is none, graph is persisted. However there
is a chance vertices's storage level is not none while edges's is none. Eg. graph created
by a outerJoinVertices operation, vertices is automatically cached while edges is not. In
this way, edges will not be persisted if we use PeriodicGraphCheckpointer do persist. We need
separately check edges's storage level and persisted it if it's none.
    
    
    ## How was this patch tested?
     manual tests
    


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/dding3/spark spark-persisitEdge

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/spark/pull/15124.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 #15124
    
----
commit bf94b4dbcc4e8e0602715dce92f5053608674b43
Author: ding <ding@localhost.localdomain>
Date:   2016-09-16T17:04:27Z

    persist edges if their storage level is non in PeriodicGraphCheckpointer

----


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