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https://issues.apache.org/jira/browse/BEAM-6231?focusedWorklogId=179197&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-179197
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ASF GitHub Bot logged work on BEAM-6231:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/Dec/18 19:20
            Start Date: 27/Dec/18 19:20
    Worklog Time Spent: 10m 
      Work Description: boyuanzz commented on pull request #7356: [BEAM-6231] 
Make Dataflow runner harness work with FixedWindow
URL: https://github.com/apache/beam/pull/7356#discussion_r244211729
 
 

 ##########
 File path: 
runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/graph/CreateExecutableStageNodeFunction.java
 ##########
 @@ -191,6 +195,37 @@ public Node apply(MutableNetwork<Node, Edge> input) {
         Iterables.filter(input.nodes(), InstructionOutputNode.class)) {
       InstructionOutput instructionOutput = node.getInstructionOutput();
 
+      // If this is the input PCollection or the output PCollection for an 
ExecutableStage, it's
 
 Review comment:
   From my understanding, the input and output PCollection go through fnapi 
data channel between runner harness and sdk harness. Taking sending value from 
runner harness as an example, it needs a coder(```element coder``` + ```window 
coder```) to encode value then send it to sdk harness. The ```element coder``` 
is got from component by ```coderId```, and ```window coder``` is got from 
WindowingStrategy by ```windowingStrategyId```.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 179197)
    Time Spent: 1.5h  (was: 1h 20m)

> Triage test failures introduced by use_executable_stage_bundle_execution
> ------------------------------------------------------------------------
>
>                 Key: BEAM-6231
>                 URL: https://issues.apache.org/jira/browse/BEAM-6231
>             Project: Beam
>          Issue Type: Test
>          Components: runner-dataflow
>            Reporter: Boyuan Zhang
>            Assignee: Boyuan Zhang
>            Priority: Major
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>




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