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From "Hanisha Koneru (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-15164) DataNode Replica Trash
Date Mon, 08 Jan 2018 22:32:01 GMT
Hanisha Koneru created HADOOP-15164:

             Summary: DataNode Replica Trash
                 Key: HADOOP-15164
                 URL: https://issues.apache.org/jira/browse/HADOOP-15164
             Project: Hadoop Common
          Issue Type: New Feature
            Reporter: Hanisha Koneru
            Assignee: Hanisha Koneru
         Attachments: DataNode_Replica_Trash_Design_Doc.pdf

DataNode Replica Trash will allow administrators to recover from a recent delete request that
resulted in catastrophic loss of user data. This is achieved by placing all invalidated blocks
in a replica trash on the datanode before completely purging them from the system. The design
doc is attached here.

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