I ran a profiler on my Job and it seems that most of the time, its waiting :O See here: <http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/n11305/Tv6KnR6.png> Also, the following code snippet executes unexpectedly slow: as you can see in this call graph: <http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/n11305/Tv6KnR6.png> *Any ideas? *
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