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23-Jan-2018 |
Jeremy Lau <lauj@google.com> |
Reject retried RecvTensor requests.
Retried RecvTensorRequests are problematic because a RecvTensor with no
corresponding sender will wait forever, and the tensor may have been delivered
to a previous retry.
This change adds a unique request_id to each RecvTensor request, and we check
these request_ids against a set of recent request_ids. If a request_id is in the
recent set, we reject the RecvTensor request.
PiperOrigin-RevId: 182863245
/external/tensorflow/tensorflow/core/distributed_runtime/recent_request_ids.cc
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