Binglin Chang created HDFS-4292:
-----------------------------------

             Summary: Sanity check not correct in 
RemoteBlockReader2.newBlockReader
                 Key: HDFS-4292
                 URL: https://issues.apache.org/jira/browse/HDFS-4292
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Binglin Chang
            Assignee: Binglin Chang
            Priority: Minor


{code}
    if ( firstChunkOffset < 0 || firstChunkOffset > startOffset ||
        firstChunkOffset >= (startOffset + checksum.getBytesPerChecksum())) {
{code}
should be:
{code}
    if ( firstChunkOffset < 0 || firstChunkOffset > startOffset ||
        firstChunkOffset <= (startOffset - checksum.getBytesPerChecksum())) {
{code}


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