Error: Could not find or load main class org.apache.hadoop.hdfs.server.
This error "Error: Could not find or load main class org.apache.hadoop.hdfs.server.
$ bin/hdfs namenode -format
The most common reason for this is the HADOOP_PREFIX environment variable is not set or to the correct path atleast.To set the path to the current session execute the following or set it in the profile permanently:
$ export HADOOP_PREFIX=/path_to_hadoop_
For example,
$ export HADOOP_PREFIX= /u01/bigdata/hadoop
Once the value is set and running the command again the following start up messages should be seen.
-bash-4.2$ bin/hdfs namenode -format
15/10/20 14:13:07 INFO namenode.NameNode: STARTUP_MSG:
/*****************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = localhost/10.xx.xx.xx
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 2.6.1
STARTUP_MSG: classpath = /u01/bigdata/hadoop/etc/
..............................
Interesting and useful article.
ReplyDeletebase-and-advanced-sas training in chennai
Excellent post!!!. The strategy you have posted on this technology helped me to get into the next level and had lot of information in it.
ReplyDeletebase-sas training in chennai
• Great information, I like this kind of blog information really very nice and more I can easily new skills are develop after reading that post.
ReplyDeleteunix training in chennai
• Thanks for all your information, Website is very nice and informative content.
ReplyDeletejava training in chennai