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https://issues.apache.org/jira/browse/BEAM-5428?focusedWorklogId=306405&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-306405
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ASF GitHub Bot logged work on BEAM-5428:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 04/Sep/19 16:08
            Start Date: 04/Sep/19 16:08
    Worklog Time Spent: 10m 
      Work Description: mxm commented on pull request #9418: [BEAM-5428] 
Implement cross-bundle user state caching in the Python SDK
URL: https://github.com/apache/beam/pull/9418#discussion_r320655683
 
 

 ##########
 File path: sdks/python/apache_beam/runners/portability/fn_api_runner.py
 ##########
 @@ -1660,6 +1671,12 @@ def process_bundle(self, inputs, expected_outputs):
 
     return result, split_results
 
+  @staticmethod
+  def _generate_cache_token():
+    return beam_fn_api_pb2.ProcessBundleRequest.CacheToken(
+        user_state=beam_fn_api_pb2.ProcessBundleRequest.CacheToken.UserState(),
+        token=bytes(bytearray(random.getrandbits(8) for _ in range(16))))
 
 Review comment:
   Have replaced this with a generator with a counter and a human-readable name.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 306405)
    Time Spent: 15h 50m  (was: 15h 40m)

> Implement cross-bundle state caching.
> -------------------------------------
>
>                 Key: BEAM-5428
>                 URL: https://issues.apache.org/jira/browse/BEAM-5428
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-py-harness
>            Reporter: Robert Bradshaw
>            Assignee: Rakesh Kumar
>            Priority: Major
>          Time Spent: 15h 50m
>  Remaining Estimate: 0h
>
> Tech spec: 
> [https://docs.google.com/document/d/1BOozW0bzBuz4oHJEuZNDOHdzaV5Y56ix58Ozrqm2jFg/edit#heading=h.7ghoih5aig5m]
> Relevant document: 
> [https://docs.google.com/document/d/1ltVqIW0XxUXI6grp17TgeyIybk3-nDF8a0-Nqw-s9mY/edit#|https://docs.google.com/document/d/1ltVqIW0XxUXI6grp17TgeyIybk3-nDF8a0-Nqw-s9mY/edit]
> Mailing list link: 
> [https://lists.apache.org/thread.html/caa8d9bc6ca871d13de2c5e6ba07fdc76f85d26497d95d90893aa1f6@%3Cdev.beam.apache.org%3E]



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