Hi I'm getting similar problem while installing cloudera manager on ubuntu. I'm installing with cloudera-manager-installer.bin 16/10/15 15:48:18 INFO namenode.NNConf: XAttrs enabled? true 16/10/15 15:48:18 INFO namenode.NNConf: Maximum size of an xattr: 16384 16/10/15 15:48:18 INFO namenode.FSImage: Allocated new BlockPoolId: BP-466403930-192.168.0.5-1476568098276 16/10/15 15:48:18 WARN namenode.NameNode: Encountered exception during format: java.io.IOException: Cannot create directory /dfs/nn/current at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:343) at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:548) at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:569) at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:159) at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1046) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1484) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1611) 16/10/15 15:48:18 ERROR namenode.NameNode: Failed to start namenode. java.io.IOException: Cannot create directory /dfs/nn/current at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:343) at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:548) at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:569) at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:159) at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1046) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1484) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1611) 16/10/15 15:48:18 INFO util.ExitUtil: Exiting with status 1 16/10/15 15:48:18 INFO namenode.NameNode: SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down NameNode at venu-HP-Pavilion-Sleekbook-14-PC.exam.com/192.168.0.5
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