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错误解决:HBase执行程序报Exception in thread “main“ java.lang.NoClassDefFoundError


打包HBase程序上传到集群后,执行​​hadoop jar xxx.jar com.Xxx​​报以下错误:

Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/filter/Filter
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
at java.lang.Class.getMethod0(Class.java:3018)
at java.lang.Class.getMethod(Class.java:1784)
at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.filter.Filter
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 7 more

可先执行这一句,使临时生效:

export HADOOP_CLASSPATH="$HBASE_HOME/lib/*"

比如,是在master节点执行,则只需要在master上执行此命令,然后重新执行即可!
比如将HBase的程序打包后,可以使用以下命令执行程序:

hadoop jar xxx.jar com.bigdata.HBaseDemoXXX


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