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From "Kenneth Knowles (JIRA)" <j...@apache.org>
Subject [jira] [Created] (BEAM-3475) Support --verbose and/or --debug options so users don't have to tweak logging backend for basic output
Date Fri, 12 Jan 2018 21:47:00 GMT
Kenneth Knowles created BEAM-3475:
-------------------------------------

             Summary: Support --verbose and/or --debug options so users don't have to tweak
logging backend for basic output
                 Key: BEAM-3475
                 URL: https://issues.apache.org/jira/browse/BEAM-3475
             Project: Beam
          Issue Type: New Feature
          Components: sdk-java-core
            Reporter: Kenneth Knowles


A good command line interface uses {{--verbose}} or {{--debug}} to control verbosity for users
and contributors to get more info about what is going on in the program. Currently IIUC a
user has to tweak JUL which is quite a poor experience and Java-centric rather than a good
command line interface. We should add support for this alongside our other tools (like pipeline
options parsing) for making it easy to build a pipeline {{main()}}.

Note that this is for the construction & submission side / core SDK. Each runner has its
own needs as far as how to control the worker logging, though it is probably still better
to have a general way.



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