Error starting Hive: java.lang.NoClassDefFoundErro

问题:

I have downloaded latest stable release of Hive, when I start /usr/local/hive/bin/hive it gives me this error:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/hive/conf/HiveConf
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.hadoop.util.RunJar.main(RunJar.java:149)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hive.conf.HiveConf
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
... 3 more

Hadoop DFS is started and working, and I have changed /usr/local/hive/conf/hive-env.sh to export HADOOP_HOME.

Does anyone know what else can I do? Thanks.

回答1:

Apart from editing hive-env.sh, you also need to edit your bash_profile.

vim ~/.bash_profile

Add the following lines to your bash_profile

export HIVE_HOME=/usr/local/hive
export PATH=$PATH:$HIVE_HOME/bin

Save this file and then

source ~/.bash_profile

If this still doesnt work, please include your hive-env.sh file and hive-site.xml file. Also please tell me if you are using derby or mysql as metastore.

回答2:

Solved moving:

export HADOOP_CLASSPATH=/usr/local/hbase/hbase-0.94.1.jar:/usr/local/hbase/hbase-0.94.1-test.jar:/usr/local/hbase/conf:/usr/local/hbase/lib/zookeeper-3.4.3.jar:/usr/local/hive/lib/*.jar:/usr/local/hbase

From /usr/local/hadoop/conf/hadoop-env.sh to ~/.bashrc

Thanks for the help.