[jira] [Created] (FLINK-20154) Improve error messages when using CLI with wrong target

["Till Rohrmann (Jira)" <ji...@apache.org>]

Till Rohrmann created FLINK-20154:
-------------------------------------

             Summary: Improve error messages when using CLI with wrong target
                 Key: FLINK-20154
                 URL: https://issues.apache.org/jira/browse/FLINK-20154
             Project: Flink
          Issue Type: Improvement
          Components: Command Line Client, Documentation
            Reporter: Till Rohrmann


According to the [CLI documentation|https://ci.apache.org/projects/flink/flink-docs-stable/ops/cli.html#job-submission-examples] one can use the CLI with the following {{--target}} values: "remote", "local", "kubernetes-session", "yarn-per-job", "yarn-session", "yarn-application" and "kubernetes-application". However, when running the following commands:

{{bin/flink run -t yarn-session -p 1 examples/streaming/WindowJoin.jar}} I get the following exception:

{code}
org.apache.flink.client.program.ProgramInvocationException: The main method caused an error: null
	at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:330)
	at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:198)
	at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114)
	at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:743)
	at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:242)
	at org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:971)
	at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1047)
	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:1754)
	at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
	at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1047)
Caused by: java.lang.IllegalStateException
	at org.apache.flink.util.Preconditions.checkState(Preconditions.java:182)
	at org.apache.flink.client.deployment.executors.AbstractSessionClusterExecutor.execute(AbstractSessionClusterExecutor.java:63)
	at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:1917)
	at org.apache.flink.client.program.StreamContextEnvironment.executeAsync(StreamContextEnvironment.java:128)
	at org.apache.flink.client.program.StreamContextEnvironment.execute(StreamContextEnvironment.java:76)
	at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1799)
	at org.apache.flink.streaming.examples.join.WindowJoin.main(WindowJoin.java:86)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:316)
	... 11 more
{code}

Similarly when running the command {{bin/flink run -t yarn-application -p 1 examples/streaming/WindowJoin.jar}} I get the exception:

{code}
org.apache.flink.client.program.ProgramInvocationException: The main method caused an error: No ExecutorFactory found to execute the application.
	at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:330)
	at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:198)
	at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114)
	at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:743)
	at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:242)
	at org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:971)
	at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1047)
	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:1754)
	at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
	at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1047)
Caused by: java.lang.IllegalStateException: No ExecutorFactory found to execute the application.
	at org.apache.flink.core.execution.DefaultExecutorServiceLoader.getExecutorFactory(DefaultExecutorServiceLoader.java:84)
	at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:1908)
	at org.apache.flink.client.program.StreamContextEnvironment.executeAsync(StreamContextEnvironment.java:128)
	at org.apache.flink.client.program.StreamContextEnvironment.execute(StreamContextEnvironment.java:76)
	at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1799)
	at org.apache.flink.streaming.examples.join.WindowJoin.main(WindowJoin.java:86)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:316)
	... 11 more
{code}

Obviously, the CLI is not intended to be started with these targets. I would suggest to improve the documentation stating which targets are valid and to improve the error messages when starting the CLI with a not supported target.

cc [~kkl0u], [~aljoscha]



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