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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDDS-1269) [Ozone Upgrade] Add the ability to read block information from Namenode.
Date Thu, 14 Mar 2019 00:22:00 GMT
Anu Engineer created HDDS-1269:
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             Summary: [Ozone Upgrade] Add the ability to read block information from Namenode.
                 Key: HDDS-1269
                 URL: https://issues.apache.org/jira/browse/HDDS-1269
             Project: Hadoop Distributed Data Store
          Issue Type: Sub-task
          Components: upgrade
            Reporter: Anu Engineer


When upgrading an HDFS cluster, the user can choose to upgrade with zero data moves. However,
it is also a good point to evaluate what-if? conditions and make optimal decisions for both
HDFS and Ozone. First step in this process is to learn information about HDFS, FSImage provides
then Namespace information, this JIRA will provide the blocks and data nodes part of HDFS.



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