Robert Burke created BEAM-9789:
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             Summary: Locking error in harness.go
                 Key: BEAM-9789
                 URL: https://issues.apache.org/jira/browse/BEAM-9789
             Project: Beam
          Issue Type: Bug
          Components: sdk-go
            Reporter: Robert Burke
            Assignee: Robert Burke
             Fix For: Not applicable


When there's an error on lookup or construction of an execution plan, the lock 
is accidentally held causing the worker to freeze. 

Shouldn't be user affecting, as most plans and lookups are correct without 
error, but if there's a transient GRPC issue on lookup, that might cause an 
otherwise healthy worker to deadlock.



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