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From "Lei (Eddy) Xu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-8860) Remove Replica hardlink / unlink code
Date Wed, 05 Aug 2015 22:45:04 GMT
Lei (Eddy) Xu created HDFS-8860:

             Summary: Remove Replica hardlink / unlink code
                 Key: HDFS-8860
                 URL: https://issues.apache.org/jira/browse/HDFS-8860
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Lei (Eddy) Xu
            Assignee: Lei (Eddy) Xu

{{ReplicaInfo#unlinkBlock()}} is effectively disabled by the following code, because {{isUnlinked()}}
always returns true.

if (isUnlinked()) {
  return false;

Several test cases, e.g., {{TestFileAppend#testCopyOnWrite}} and {{TestDatanodeRestart#testRecoverReplicas}}
are testing against the unlink 
Lets remove the relevant code to eliminate the confusions. 

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