[ 
https://issues.apache.org/jira/browse/BEAM-3061?focusedWorklogId=266698&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-266698
 ]

ASF GitHub Bot logged work on BEAM-3061:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 25/Jun/19 14:20
            Start Date: 25/Jun/19 14:20
    Worklog Time Spent: 10m 
      Work Description: iemejia commented on pull request #7805: [BEAM-3061] 
Done notifications for BigtableIO.Write
URL: https://github.com/apache/beam/pull/7805#discussion_r297213909
 
 

 ##########
 File path: 
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigtable/BigtableIO.java
 ##########
 @@ -466,7 +469,7 @@ public String toString() {
   @Experimental(Experimental.Kind.SOURCE_SINK)
   @AutoValue
   public abstract static class Write
-      extends PTransform<PCollection<KV<ByteString, Iterable<Mutation>>>, 
PDone> {
+      extends PTransform<PCollection<KV<ByteString, Iterable<Mutation>>>, 
PCollection<Void>> {
 
 Review comment:
   Is really a PR that is literally changing the current API the best place to 
decide that we should remove the `Experimental` characteristic of the IO? I 
mean the APIs have been very stable but this decision is probably worth of a 
different issue, and given the uncertain future of Writes with return type I 
think probably it is wise to let it at least for the Write signature for some 
time.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 266698)
    Time Spent: 11h 50m  (was: 11h 40m)

> BigtableIO should support emitting a sentinel "done" value when a bundle 
> completes
> ----------------------------------------------------------------------------------
>
>                 Key: BEAM-3061
>                 URL: https://issues.apache.org/jira/browse/BEAM-3061
>             Project: Beam
>          Issue Type: Improvement
>          Components: io-java-gcp
>            Reporter: Steve Niemitz
>            Assignee: Steve Niemitz
>            Priority: Major
>          Time Spent: 11h 50m
>  Remaining Estimate: 0h
>
> There was some discussion of this on the dev@ mailing list [1].  This 
> approach was taken based on discussion there.
> [1] 
> https://lists.apache.org/thread.html/949b33782f722a9000c9bf9e37042739c6fd0927589b99752b78d7bd@%3Cdev.beam.apache.org%3E



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