Timo Walther created FLINK-13649:
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Summary: Improve error message when job submission was not successful
Key: FLINK-13649
URL:
https://issues.apache.org/jira/browse/FLINK-13649 Project: Flink
Issue Type: Improvement
Components: Runtime / Web Frontend
Reporter: Timo Walther
When submitting a job jar in the web frontend, a user only gets "Internal server error" when something went wrong.
For example, submitting a batch job with {{ExecutionEnvironment env = ExecutionEnvironment.createCollectionsEnvironment();}}.
The logs show a better error message:
{code}
2019-08-08 11:07:18,512 INFO org.apache.flink.api.java.ExecutionEnvironment - The job has 0 registered types and 0 default Kryo serializers
2019-08-08 11:07:18,537 ERROR org.apache.flink.runtime.webmonitor.handlers.JarRunHandler - Unhandled exception.
org.apache.flink.client.program.ProgramInvocationException: The program plan could not be fetched - the program aborted pre-maturely.
System.err: (none)
System.out: WC Hello 2
at org.apache.flink.client.program.OptimizerPlanEnvironment.getOptimizedPlan(OptimizerPlanEnvironment.java:108)
at org.apache.flink.client.program.PackagedProgramUtils.createJobGraph(PackagedProgramUtils.java:80)
at org.apache.flink.runtime.webmonitor.handlers.utils.JarHandlerUtils$JarHandlerContext.toJobGraph(JarHandlerUtils.java:126)
at org.apache.flink.runtime.webmonitor.handlers.JarRunHandler.lambda$getJobGraphAsync$6(JarRunHandler.java:142)
at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{code}
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