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https://issues.apache.org/jira/browse/BEAM-7121?focusedWorklogId=240442&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-240442
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ASF GitHub Bot logged work on BEAM-7121:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 10/May/19 21:51
            Start Date: 10/May/19 21:51
    Worklog Time Spent: 10m 
      Work Description: charlesccychen commented on issue #8377: [BEAM-7121] 
Add deterministic proto coder
URL: https://github.com/apache/beam/pull/8377#issuecomment-491440504
 
 
   @yifanmai: That sounds like a good idea
   @robertwb: FYI on the flakiness since I believe that test was introduced in 
https://github.com/apache/beam/commit/57c8f93c04ee2ddff1d7b3166d8124f7723f39ab
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 240442)
    Time Spent: 2h 40m  (was: 2.5h)

> Provide deterministic version of Python's ProtoCoder
> ----------------------------------------------------
>
>                 Key: BEAM-7121
>                 URL: https://issues.apache.org/jira/browse/BEAM-7121
>             Project: Beam
>          Issue Type: Improvement
>          Components: runner-core
>            Reporter: Yifan Mai
>            Priority: Minor
>          Time Spent: 2h 40m
>  Remaining Estimate: 0h
>
> Passing deterministic=true to proto's 
> [SerializeToString|https://github.com/protocolbuffers/protobuf/blob/60b66a119d17f0a2a595a231bea87cd4f4cf2689/python/google/protobuf/message.py#L189-L204]
>  will result in deterministic encoding of maps in protos. This can be used to 
> provide a deterministic version of ProtoCoder.
> This would allow protos to be used as a key for grouping by key.



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