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Ray 0.8.4
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@simon-mo simon-mo released this 02 Apr 17:44
ray-0.8.4
89aa470

Highlight

  • Add Python 3.8 support. (#7754)

Core

  • Fix asycnio actor deserialization. (#7806)
  • Fix importing Pyarrow lead to symbol collison segfault. (#7568)
  • ray memory will collect statistics from all nodes. (#7721)
  • Pin lineage of plasma objects that are still in scope. (#7690)

RLlib

  • Add contextual bandit algorithms. (#7642)
  • Add parameter noise exploration API. (#7772)
  • Add scaling guide. (#7780)
  • Enable restore keras model from h5 file. (#7482)
  • Store tf-graph by default when doing Policy.export_model(). (#7759)
  • Fix default policy overrides torch policy. (#7756, #7769)

RaySGD

  • BREAKING: Add new API for tuning TorchTrainer using Tune. (#7547)
  • BREAKING: Convert the head worker to a local model. (#7746)
  • Added a new API for save/restore. (#7547)
  • Add tqdm support to TorchTrainer. (#7588)

Tune

  • Add sorted columns and TensorBoard to Tune tab. (#7140)
  • Tune experiments can now be cancelled via the REST client. (#7719)
  • fail_fast enables experiments to fail quickly. (#7528)
  • override the IP retrieval process if needed. (#7705)
  • TensorBoardX nested dictionary support. (#7705)

Serve

  • Performance improvements:
    • Push route table updates to HTTP proxy. (#7774)
    • Improve serialization. (#7688)
  • Add async methods support for serve actors. (#7682)
  • Add multiple method support for serve actors. (#7709)
    • You can specify HTTP methods in serve.create_backend(..., methods=["GET", "POST"]).
    • The ability to specify which actor method to execute in HTTP through X-SERVE-CALL-METHOD header or in RayServeHandle through handle.options("method").remote(...).

Others

  • Progress towards highly available control plane. (#7822, #7742)
  • Progress towards Windows compatibility. (#7740, #7739, #7657)
  • Progress towards Ray Streaming library. (#7813)
  • Progress towards metrics export service. (#7809)
  • Basic C++ worker implementation. (#6125)

Thanks

We thank the following contributors for their work on this release:

@carlbalmer, @BalaBalaYi, @saurabh3949, @maximsmol, @SongGuyang, @istoica, @pcmoritz, @aannadi, @kfstorm, @ijrsvt, @richardliaw, @mehrdadn, @wumuzi520, @cloudhan, @edoakes, @mitchellstern, @robertnishihara, @hhoke, @simon-mo, @ConeyLiu, @stephanie-wang, @rkooo567, @ffbin, @ericl, @hubcity, @sven1977

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