Hanisha Koneru created HDFS-12996:
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Summary: DataNode Replica Trash
Key: HDFS-12996
URL: https://issues.apache.org/jira/browse/HDFS-12996
Project: Hadoop HDFS
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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