Commit d5b89b18 authored by Derek Murray's avatar Derek Murray Committed by Amit Patankar
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[tf.contrib.data] Re-implement IteratorGetNext as an AsyncOpKernel. 

This prevents the op from consuming an inter-op thread pool thread
when blocked, and fixes a potential deadlock when many IteratorGetNext
ops are blocked. Fixes #10369.

PiperOrigin-RevId: 157878885
parent efa47468
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