[jira] [Created] (UIMA-2642) DUCC should provide job cancel by proxy capability

["Lou DeGenaro (JIRA)" <de...@uima.apache.org>]

Lou DeGenaro created UIMA-2642:
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             Summary: DUCC should provide job cancel by proxy capability
                 Key: UIMA-2642
                 URL: https://issues.apache.org/jira/browse/UIMA-2642
             Project: UIMA
          Issue Type: Improvement
            Reporter: Lou DeGenaro
            Assignee: Lou DeGenaro


Presently, DUCC job submit provides the ability to wait for job completion before exiting via the --wait_for_completion flag, and to automatically cancel the job when ctrl-C is invoked via the --cancel_job_on_interrupt flag.  In the case where the submit+monitor CLI combination is terminated by, say, kill -9 the job is (unfortunately) not automatically canceled.

To remedy this deficiency, the DUCC webserver (WS) will act as proxy to receive periodic "I am alive" requests from the submit+monitor CLI, and if these requests cease to arrive for some ducc.properties configured interval, then the job is auto-canceled. 

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