[jira] [Created] (BEAM-7170) ExpansionServer throws exception when port is retrieved after close

["Maximilian Michels (JIRA)" <ji...@apache.org>]

Maximilian Michels created BEAM-7170:
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             Summary: ExpansionServer throws exception when port is retrieved after close
                 Key: BEAM-7170
                 URL: https://issues.apache.org/jira/browse/BEAM-7170
             Project: Beam
          Issue Type: Bug
          Components: sdk-java-core
            Reporter: Maximilian Michels
            Assignee: Maximilian Michels


The ExpansionServer can throw the following exception after shutdown because the port getter retrieves the port dynamically from the underlying service:
{noformat}
[Test worker] ERROR org.apache.beam.runners.fnexecution.jobsubmission.JobServerDriver - Error while closing the Expansion Service.
java.lang.IllegalStateException: Already terminated
	at org.apache.beam.vendor.grpc.v1p13p1.com.google.common.base.Preconditions.checkState(Preconditions.java:444)
	at org.apache.beam.vendor.grpc.v1p13p1.io.grpc.internal.ServerImpl.getPort(ServerImpl.java:174)
	at org.apache.beam.runners.core.construction.expansion.ExpansionServer.getPort(ExpansionServer.java:66)
	at org.apache.beam.runners.fnexecution.jobsubmission.JobServerDriver.stop(JobServerDriver.java:200)
	at sun.reflect.GeneratedMethodAccessor173.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at {noformat}



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