on reconnect, DN can connect to NN even with different source versions
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Key: HDFS-2120
URL: https://issues.apache.org/jira/browse/HDFS-2120
Project: Hadoop HDFS
Issue Type: Bug
Reporter: John George
Assignee: John George
DN or NN does not check for source versions in cases when NN goes away or has
lost connection. The only check that is done by NN is for LAYOUT_VERSION and DN
does not check for any version mismatch.
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