Environment variable CLASSPATH not set!

hdfs 问题 

Environment variable CLASSPATH not set!
getJNIEnv: getGlobalJNIEnv failed
WARNING: Logging before InitGoogleLogging() is written to STDERR
F1220 15:20:07.861387  6897 hdfs_filesys.cc:100] Failed to load HDFS-configuration:
*** Check failure stack trace: ***
 

解决

export HADOOP_PREFIX=/home/users/zheng01.zhu/hjj/hadoop-2.7.2/
export HADOOP_HOME=$HADOOP_PREFIX
export CLASSPATH=$($HADOOP_PREFIX/bin/hadoop classpath --glob)