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https://issues.apache.org/jira/browse/BEAM-9562?focusedWorklogId=418913&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-418913
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ASF GitHub Bot logged work on BEAM-9562:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 08/Apr/20 21:33
            Start Date: 08/Apr/20 21:33
    Worklog Time Spent: 10m 
      Work Description: robertwb commented on pull request #11314: [BEAM-9562] 
Send Timers over Data Channel as Elements
URL: https://github.com/apache/beam/pull/11314#discussion_r405825392
 
 

 ##########
 File path: sdks/python/apache_beam/runners/worker/bundle_processor.py
 ##########
 @@ -846,6 +870,30 @@ def process_bundle(self, instruction_id):
         data_channels[input_op.data_channel].append(input_op.transform_id)
         input_op_by_transform_id[input_op.transform_id] = input_op
 
+        # Set up timer output stream
+      timer_output_streams = {}
+      for transform_id, timer_list in self.timer_ids.items():
+        output_streams = {}
+        for timer_id in timer_list:
+          output_streams[
+              timer_id] = self.timer_data_channel.output_timer_stream(
+                  instruction_id, transform_id, timer_id)
+          timer_output_streams[transform_id] = output_streams
+        self.process_timer_ops[
+            transform_id].user_state_context.update_timer_output_streams(
 
 Review comment:
   Nit: rather than this double nesting, it might simplify things to have an 
`update_timer_output_streams(timer_id, output_stream)` method that could be 
called repeatedly. 
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 418913)
    Time Spent: 14h 40m  (was: 14.5h)

> Remove timer from PCollection and treat timers as Elements 
> -----------------------------------------------------------
>
>                 Key: BEAM-9562
>                 URL: https://issues.apache.org/jira/browse/BEAM-9562
>             Project: Beam
>          Issue Type: New Feature
>          Components: sdk-java-harness, sdk-py-harness
>            Reporter: Boyuan Zhang
>            Assignee: Boyuan Zhang
>            Priority: Major
>             Fix For: 2.21.0
>
>          Time Spent: 14h 40m
>  Remaining Estimate: 0h
>




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