[jira] Created: (HADOOP-4865) Trigger block scans for datanode

[Brian Bockelman (JIRA)]

Trigger block scans for datanode
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                 Key: HADOOP-4865
                 URL: https://issues.apache.org/jira/browse/HADOOP-4865
             Project: Hadoop Core
          Issue Type: New Feature
          Components: dfs
            Reporter: Brian Bockelman


Provide a mechanism to trigger block scans in a datanode upon request.  Support 
interfaces for commands sent by the namenode and through the HTTP interface.

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