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From "Tarun Parimi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-9465) Support to alter table properties in HBaseTimelineSchemaCreator
Date Tue, 09 Apr 2019 14:57:00 GMT
Tarun Parimi created YARN-9465:
----------------------------------

             Summary: Support to alter table properties in HBaseTimelineSchemaCreator
                 Key: YARN-9465
                 URL: https://issues.apache.org/jira/browse/YARN-9465
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: timelinereader
    Affects Versions: 3.2.0
            Reporter: Tarun Parimi
            Assignee: Tarun Parimi


HBaseTimelineSchemaCreator currently only creates tables if they don't exist. Only creating
hbase tables without altering is the desired behavior for most of the use cases.

However, in certain scenarios we might need to alter tables.
 For example after upgrade, we might need to point to a new coprocessor jar in yarn.timeline-service.hbase.coprocessor.jar.hdfs.location
. 
 A user might also want to change the ttl of the tables afterwards to control the data retention.
Currently user has to manually find the tables related to atsv2 and alter them with hbase
shell, which is not straightforward.

To support such scenarios, it will be useful to have an option to alter table if required
in HBaseTimelineSchemaCreator.



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