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Posted to common-dev@hadoop.apache.org by "Hanisha Koneru (JIRA)" <ji...@apache.org> on 2018/01/08 22:36:00 UTC

[jira] [Resolved] (HADOOP-15164) DataNode Replica Trash

     [ https://issues.apache.org/jira/browse/HADOOP-15164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hanisha Koneru resolved HADOOP-15164.
-------------------------------------
    Resolution: Duplicate

> 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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