Github user andrewor14 commented on the pull request:
https://github.com/apache/spark/pull/1056#issuecomment-49684190
@sryza I don't know of a correct way to check the size of your akka
message, but one quick way to find out approximately how large your messages
are is use `SizeEstimator` to measure the size of the list of `TaskMetrics`
each executor is sending over. We should run this on a somewhat stressful Spark
application that caches and uncaches RDDs frequently. The default max akka
frame size is currently `10MB`, so as long as we're nowhere near that limit
(which is likely) then it should be fine. Maybe others have more to add on
finding an easy way to report akka frame size directly.
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