Aljoscha Krettek created BEAM-3087:
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Summary: Extend lock scope in Flink UnboundedSourceWrapper
Key: BEAM-3087
URL: https://issues.apache.org/jira/browse/BEAM-3087
Project: Beam
Issue Type: Bug
Components: runner-flink
Reporter: Aljoscha Krettek
Assignee: Aljoscha Krettek
Fix For: 2.3.0
In {{UnboundedSourceWrapper}} the lock scope is not big enough: we synchronise
in {{emitElement()}} but should instead synchronise inside the reader loop in
{{run()}} because the {{Source}} interface does not allow concurrent calls.
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