您正在尝试将csv文件导入HBase数据库，并在执行此操作时遇到异常
Pig Stack Trace
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ERROR 2998: Unhandled internal error. org/apache/hadoop/hbase/filter/WritableByteArrayComparable
java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/filter/WritableByteArrayComparable
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)
at org.apache.pig.impl.PigContext.resolveClassName(PigContext.java:635)
at org.apache.pig.parser.LogicalPlanBuilder.validateFuncSpec(LogicalPlanBuilder.java:1257)
at org.apache.pig.parser.LogicalPlanBuilder.buildFuncSpec(LogicalPlanBuilder.java:1245)
at org.apache.pig.parser.LogicalPlanGenerator.func_clause(LogicalPlanGenerator.java:5069)
at org.apache.pig.parser.LogicalPlanGenerator.store_clause(LogicalPlanGenerator.java:7667)
at org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1580)
at org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:1013)
at org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:553)
at org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:421)
at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:188)
at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1648)
at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1621)
at org.apache.pig.PigServer.registerQuery(PigServer.java:575)
at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1093)
at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:501)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:198)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:173)
at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69)
at org.apache.pig.Main.run(Main.java:541)
at org.apache.pig.Main.main(Main.java:156)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.filter.WritableByteArrayComparable
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 27 more
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我发现我们需要为猪指定hbase的类路径。 我们正在使用集群环境，我不知道我应该在哪里指定类路径语句，如下所示
export HBASE_HOME=/opt/mapr/hbase/hbase-0.98.7
export HADOOP_CLASSPATH=.`${HBASE_HOME}/bin/hbase classpath`:$HADOOP_CLASSPATH
非常感谢任何帮助。