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From "Li Lu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4102) Add an "incremental" mode for timeline schema creator
Date Tue, 01 Sep 2015 20:56:46 GMT
Li Lu created YARN-4102:
---------------------------

             Summary: Add an "incremental" mode for timeline schema creator
                 Key: YARN-4102
                 URL: https://issues.apache.org/jira/browse/YARN-4102
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Li Lu
            Assignee: Li Lu


When debugging timeline POCs, we may need to create hbase tables that are added in some ongoing
patches. Right now, our schema creator will exit when it hits one existing table. While this
is a correct behavior with end users, this introduces much trouble in debugging POCs: every
time we have to disable all existing tables, drop them, run the schema creator to generate
all tables, and regenerate all test data. 

Maybe we'd like to add an "incremental" mode so that the creator will only create non-existing
tables? This is pretty handy in deploying our POCs. Of course, consistency has to be kept
in mind across tables. 



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