commit | 3d28cdc6032ef271510e85df9ab5f95a98f1c6a8 | [log] [tgz] |
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author | Andrew Audibert <aaudibert@google.com> | Thu Jan 14 10:20:04 2021 -0800 |
committer | TensorFlower Gardener <gardener@tensorflow.org> | Thu Jan 14 10:26:18 2021 -0800 |
tree | b7e80069b2fb46aca976f53efed6ea2f482b5e3d | |
parent | e687cab61615a95b8aea79120c9f168d4cc30955 [diff] |
[tf.data service] Improve cancellation for tf.data service requests. 1. If a DataServiceDataset iterator is cancelled, it will now call TryCancel on its outstanding RPCs. 2. As a result, we can reduce the frequency of returning from blocked round-robin requests to check whether the iterator is cancelled. This may avoid delays in GetNext() that could happen if one consumer reads from a round earlier than others, and needs to perform multiple retries with exponential backoff. 3. Because of (2), server shutdown may take up to 1 minute if a round-robin request is blocked waiting for other consumers. To prevent slow unit tests, certain tests store their servers globally so that they are destroyed immediately at process exit without waiting for their outstanding RPCs to finish. Running data_service_ops_test.py locally, this CL reduces the time from 27 seconds to 20 seconds PiperOrigin-RevId: 351825888 Change-Id: Iba20a456bdabf251d03b94f090fe760616d3da4d
Documentation |
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TensorFlow is an end-to-end open source platform for machine learning. It has a comprehensive, flexible ecosystem of tools, libraries, and community resources that lets researchers push the state-of-the-art in ML and developers easily build and deploy ML-powered applications.
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