错误如下：
16/12/27 19:25:48 ERROR namenode.FSNamesystem: FSNamesystem initialization failed.
java.io.IOException: Invalid configuration: a shared edits dir must not be specified if HA is not enabled.
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.(FSNamesystem.java:762)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.(FSNamesystem.java:697)
at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:984)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1429)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1554)
16/12/27 19:25:48 INFO namenode.FSNamesystem: Stopping services started for active state
16/12/27 19:25:48 INFO namenode.FSNamesystem: Stopping services started for standby state
16/12/27 19:25:48 WARN namenode.NameNode: Encountered exception during format:
java.io.IOException: Invalid configuration: a shared edits dir must not be specified if HA is not enabled.
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.(FSNamesystem.java:762)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.(FSNamesystem.java:697)
at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:984)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1429)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1554)
16/12/27 19:25:48 ERROR namenode.NameNode: Failed to start namenode.
java.io.IOException: Invalid configuration: a shared edits dir must not be specified if HA is not enabled.
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.(FSNamesystem.java:762)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.(FSNamesystem.java:697)
at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:984)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1429)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1554)
16/12/27 19:25:48 INFO util.ExitUtil: Exiting with status 1
16/12/27 19:25:48 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at hadoop-tjf/192.168.1.105
************************************************************/
你首先看你配置hadoop.tmp.dir这个属性了吗，要建立这个文件夹，如果你做了，可能是没有权限，你把这个文件的权限给当前非root用户