[FLINK-13649] Improve error message when job submission was not successful

• Type: Improvement
• Status: Open
• Priority: Not a Priority
• Resolution: Unresolved
• Component/s: Runtime / Web Frontend
• Labels: auto-deprioritized-major auto-deprioritized-minor
• Assignee: Unassigned
• Reporter: Timo Walther
• Created: 08/Aug/19 09:17
• Updated: 23/Nov/21 22:38

Description

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:

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)