[jira] [Created] (CRUNCH-443) Pipeline#run returns null in some error situations

["Gabriel Reid (JIRA)" <ji...@apache.org>]

Gabriel Reid created CRUNCH-443:
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             Summary: Pipeline#run returns null in some error situations
                 Key: CRUNCH-443
                 URL: https://issues.apache.org/jira/browse/CRUNCH-443
             Project: Crunch
          Issue Type: Bug
            Reporter: Gabriel Reid
            Assignee: Gabriel Reid


In some error situations, when a pipeline fails to run, the returned PipelineResult will be null.

This means that running a pipeline and checking the result requires the following logic:

{code}
PipelineResult result = pipeline.run();
if (result == null || !result.succeeded()) {
    System.out.println("Pipeline failed");
}
{code}

The PipelineResult returned by Pipeline#run should never be null. Instead, it should contain enough information to see that the pipeline run failed.



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