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Got error java.io.IOException: NameNode is not formatted, but no option to format the name node

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"Version: Cloudera Enterprise Data Hub Edition Trial 5.11.0 (#101 built by jenkins on 20170412-1249 git: 70cb1442626406432a6e7af5bdf206a384ca3f98)" 

 

Failed to start Name Server for HDFS. with the following error "java.io.IOException: NameNode is not formatted." 

 

2017-07-03 00:14:56,117 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: Failed to start namenode.
java.io.IOException: NameNode is not formatted.
at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:222)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1096)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:780)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:614)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:676)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:844)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:823)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1547)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1615)

 

Try to follow "http://www.cloudera.com/documentation/manager/5-0-x/Cloudera-Manager-Managing-Clusters/cm5mc_nn.html" to format the name node directory. but there is no such action in the action menu for the selected Name node instance. 

 

 

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