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https://issues.apache.org/jira/browse/BEAM-13532?focusedWorklogId=701415&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-701415
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ASF GitHub Bot logged work on BEAM-13532:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 28/Dec/21 05:21
            Start Date: 28/Dec/21 05:21
    Worklog Time Spent: 10m 
      Work Description: dpcollins-google commented on pull request #16366:
URL: https://github.com/apache/beam/pull/16366#issuecomment-1001875299


   Hi Tamir, 
   
   Thank you for your contribution to beam. Changes to PubsubIO like this will 
not properly work on dataflow jobs, as the dataflow runner replaces Pub/Sub 
reads and writes with an internal implementation.
   
   If you want to dynamically dispatch to Pub/Sub Topics for your own 
pipelines, you might be able to get this working in the shorter term by writing 
a relatively simple DoFn using the Pub/Sub java client library in your code 
that identifies the topic from an attribute and publishes to the correct topic.
   
   If this is a feature that you'd like to see added to PubsubIO, I'd suggest 
bringing it up on the dev mailing list, where you could coordinate and discuss 
this with the owners of the internal runner.
   
   -Daniel
   


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

    Worklog Id:     (was: 701415)
    Time Spent: 20m  (was: 10m)

> Pubsub-IO dynamic destination
> -----------------------------
>
>                 Key: BEAM-13532
>                 URL: https://issues.apache.org/jira/browse/BEAM-13532
>             Project: Beam
>          Issue Type: Improvement
>          Components: io-java-gcp
>            Reporter: tamir
>            Priority: P2
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Change topic name to be part of the PubsubMessage and pass it using dynamic 
> destinations (like in BigQuery-IO). This will allow writing to new topics 
> without restart the job.



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