我最近在我的系统上安装了hadoop（大约几天前）。一切都很顺利。
然而，今天所有的hadoop命令都比以前说的更长（并且比他们应该的更长）我重新启动了我的系统，但它没有帮助。
INDhruvk:~ Dhruv$ /usr/local/hadoop/sbin/start-dfs.sh
2014-01-01 **20:20:00.384** java[331:1903] Unable to load realm info from SCDynamicStore
14/01/01 20:20:28 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [localhost]
localhost: starting namenode, logging to /usr/local/hadoop/logs/hadoop-Dhruv-namenode-INDhruvk.local.out
localhost: 2014-01-01 20:20:44.966 java[396:1d03] Unable to load realm info from SCDynamicStore
localhost: starting datanode, logging to /usr/local/hadoop/logs/hadoop-Dhruv-datanode-INDhruvk.local.out
localhost: 2014-01-01 20:20:48.846 java[467:1d03] Unable to load realm info from SCDynamicStore
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop/logs/hadoop-Dhruv-secondarynamenode-INDhruvk.local.out
0.0.0.0: 2014-01-01 20:21:42.445 java[561:1d03] Unable to load realm info from SCDynamicStore
2014-01-01 20:22:30.064 java[611:1903] Unable to load realm info from SCDynamicStore
14/01/01 **20:22:45** WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
正如您所看到的，SecondaryNameNode，NameNode和DataNode需要大约3分钟才能运行。
虽然这不是一个大问题，但似乎有些不对劲。任何提示/想法？
谢谢。 B / W新年快乐：）