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https://issues.apache.org/jira/browse/FLINK-4824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Greg Hogan reassigned FLINK-4824:
---------------------------------
Assignee: Greg Hogan
> CliFrontend shows misleading error message when main() method returns before
> env.execute()
> ------------------------------------------------------------------------------------------
>
> Key: FLINK-4824
> URL: https://issues.apache.org/jira/browse/FLINK-4824
> Project: Flink
> Issue Type: Bug
> Components: Client
> Affects Versions: 1.2.0
> Reporter: Robert Metzger
> Assignee: Greg Hogan
>
> While testing Flink by running the
> {{./examples/streaming/SocketWindowWordCount.jar}} example, I got the
> following error message:
> {code}
> ./bin/flink run ./examples/streaming/SocketWindowWordCount.jar
> Cluster configuration: Standalone cluster with JobManager at /127.0.0.1:6123
> Using address 127.0.0.1:6123 to connect to JobManager.
> JobManager web interface address http://127.0.0.1:8081
> Starting execution of program
> No port specified. Please run 'SocketWindowWordCount --port <port>', where
> port is the address of the text server
> To start a simple text server, run 'netcat -l <port>' and type the input text
> into the command line
> ------------------------------------------------------------
> The program finished with the following exception:
> org.apache.flink.client.program.ProgramInvocationException: The program
> didn't contain Flink jobs. Perhaps you forgot to call execute() on the
> execution environment.
> at
> org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:324)
> at
> org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:774)
> at org.apache.flink.client.CliFrontend.run(CliFrontend.java:250)
> at
> org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:985)
> at org.apache.flink.client.CliFrontend$2.run(CliFrontend.java:1032)
> at org.apache.flink.client.CliFrontend$2.run(CliFrontend.java:1029)
> at
> org.apache.flink.runtime.security.SecurityContext$1.run(SecurityContext.java:82)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
> at
> org.apache.flink.runtime.security.SecurityContext.runSecured(SecurityContext.java:79)
> at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1029)
> {code}
> I think the error message is misleading, because I tried executing a valid
> Flink job.
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