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From aljoscha <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-3761] Introduction of key groups
Date Wed, 18 May 2016 11:46:43 GMT
Github user aljoscha commented on the pull request:

    @gyfora Yes, this is correct. We'll have to put the timers into partitioned state and
upon restarting iterate over the saved timers to re-set any callbacks at the `StreamTask`.
    Doing this naively would slow things down. What I had in mind is to still keep the timers
in an in-memory `Map` but before snapshotting put them into a partitioned state. This way,
we don't have the overhead every time that we deal with timers but just when checkpointing.

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