[jira] [Work logged] (BEAM-3913) Support custom runner primitives in Fusion

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-3913?focusedWorklogId=83289&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-83289 ]

ASF GitHub Bot logged work on BEAM-3913:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 22/Mar/18 18:56
            Start Date: 22/Mar/18 18:56
    Worklog Time Spent: 10m 
      Work Description: tgroh opened a new pull request #4938: [BEAM-3913] Allow Fusion to Continue with unknown PTransforms
URL: https://github.com/apache/beam/pull/4938
 
 
   If the transforms are executed in a Runner, they should be handled by
   the runner. If they are executed in an Environment, the environment
   should be able to handle them, but we should be maximally restrictive in
   terms of what Stage they are placed in.
   
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Issue Time Tracking
-------------------

            Worklog Id:     (was: 83289)
            Time Spent: 10m
    Remaining Estimate: 0h

> Support custom runner primitives in Fusion
> ------------------------------------------
>
>                 Key: BEAM-3913
>                 URL: https://issues.apache.org/jira/browse/BEAM-3913
>             Project: Beam
>          Issue Type: Improvement
>          Components: runner-core
>            Reporter: Thomas Groh
>            Assignee: Thomas Groh
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Effectively, register runner-provided transform URNs in the GreedyPCollectionFusers to understand runner-specific primitives, and don't ever fuse them.
>  
> It's probably appropriate to continue to crash when encountering truly unknown URNs



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