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From s1ck <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-2590] fixing DataSetUtils.zipWithUnique...
Date Mon, 31 Aug 2015 16:49:00 GMT
Github user s1ck commented on the pull request:

    @tillrohrmann While writing the new tests for both methods, I encountered that `zipWithIndex`
is broken, too. It sometimes throws `ConcurrentModificationException`. This is because each
task sorts a broadcasted list in the `open` method. This could not fail before due to parallelism
= 1.
    I would fix this by creating a local copy of that list (which should be small in that
specific case). Shall I fix this in the same issue or do you want me to create a new issue
for that?

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