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https://issues.apache.org/jira/browse/BEAM-9977?focusedWorklogId=435048&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-435048
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ASF GitHub Bot logged work on BEAM-9977:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 19/May/20 16:32
            Start Date: 19/May/20 16:32
    Worklog Time Spent: 10m 
      Work Description: lukecwik commented on pull request #11715:
URL: https://github.com/apache/beam/pull/11715#issuecomment-630934841


   Should we be using the RangeEndEstimator when providing progress/splitting 
for ranges not ending at `Long.MAX_VALUE`?
   
   Lets say the range estimate is bad and is `MAX_VALUE - 3` but the real end 
is `5000`, then after a split we end up with `[0, (MAX_VALUE - 3) * 0.5)` and 
`[(MAX_VALUE - 3) * 0.5, MAX_VALUE)`. We may quickly learn that the residual is 
empty and then lose all effective progress on the primary.


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 435048)
    Time Spent: 1.5h  (was: 1h 20m)

> Build Kafka Read on top of Java SplittableDoFn
> ----------------------------------------------
>
>                 Key: BEAM-9977
>                 URL: https://issues.apache.org/jira/browse/BEAM-9977
>             Project: Beam
>          Issue Type: New Feature
>          Components: io-java-kafka
>            Reporter: Boyuan Zhang
>            Assignee: Boyuan Zhang
>            Priority: P2
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>




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