2016-08-23 21:55:38,159 WARN org.apache.hadoop.hdfs.server.namenode.FSNamesystem
: Encountered exception loading fsimage
java.io.IOException: NameNode is not formatted.
at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(
FSImage.java:225)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNam
esystem.java:975)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNa
mesystem.java:681)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNo
de.java:584)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.j
ava:644)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:
811)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:
795)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNo
de.java:1488)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:15
54)