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https://issues.apache.org/jira/browse/FLINK-4824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15589415#comment-15589415
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ASF GitHub Bot commented on FLINK-4824:
---------------------------------------
GitHub user greghogan opened a pull request:
https://github.com/apache/flink/pull/2662
[FLINK-4824] [client] CliFrontend shows misleading error message
When a Flink program throws `ProgramParametrizationException` the optional
message is printed to stderr and the stacktrace is ignored.
I modified Gelly's `JaccardIndex` driver to use this functionality as an
example.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/greghogan/flink
4824_clifrontend_shows_misleading_error_message_when_main_method_returns_before_env_execute
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2662.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2662
----
commit af0b2223a4fe03016f223e2605e12d00e177999c
Author: Greg Hogan <[email protected]>
Date: 2016-10-13T16:40:53Z
[FLINK-4824] [client] CliFrontend shows misleading error message
When a Flink program throws ProgramParametrizationException the
optional message is printed to stderr and the stacktrace is ignored.
----
> 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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