DNA_SHUTDOWN command is never sent by the NN
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Key: HDFS-2987
URL: https://issues.apache.org/jira/browse/HDFS-2987
Project: Hadoop HDFS
Issue Type: Improvement
Components: data-node
Reporter: Todd Lipcon
Priority: Trivial
The DataNode has a code path to handle a DNA_SHUTDOWN command, but in fact this
command has never been sent by the NN (it was introduced by HADOOP-641 in
0.8.0!)
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