hadoop - pig 按命令分组不起作用

Question

我在3个节点上安装了Cassandra 2.0.7和hadoop 2.3.0，在3个节点之一上安装了pig 0.13.0，并且在cassandra中有如下表:

CREATE TABLE sampletb (
  a text,
  b text,
  c text,
  d text,
  e int,
  PRIMARY KEY (a, b, c, d))

我以如下方式运行 pig 皮脚本:

rows = LOAD 'cql://db/ sampletb USING CqlStorage();

grouprows= group rows by ($0,$1);

当我运行组时，出现以下错误:

2015-02-10 08:57:39,196 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2998: Unhandled internal error. org.antlr.runtime.tree.BaseTree.insertChild(ILjava/lang/Object;)V Details at logfile: /home/hadoopcluster/pig_1423545778153.log The content of logfile is:

pig 栈痕迹

ERROR 2998: Unhandled internal error. org.antlr.runtime.tree.BaseTree.insertChild(ILjava/lang/Object;)V

java.lang.NoSuchMethodError: >org.antlr.runtime.tree.BaseTree.insertChild(ILjava/lang/Object;)V at org.apache.pig.parser.QueryParser.paren_expr(QueryParser.java:17532) at org.apache.pig.parser.QueryParser.cast_expr(QueryParser.java:17005) at org.apache.pig.parser.QueryParser.multi_expr(QueryParser.java:15679) at org.apache.pig.parser.QueryParser.expr(QueryParser.java:15568) at org.apache.pig.parser.QueryParser.real_arg(QueryParser.java:14634) at org.apache.pig.parser.QueryParser.join_group_by_clause(QueryParser.java:13663) at org.apache.pig.parser.QueryParser.group_item(QueryParser.java:8889) at org.apache.pig.parser.QueryParser.group_item_list(QueryParser.java:8721) at org.apache.pig.parser.QueryParser.group_clause(QueryParser.java:8611) at org.apache.pig.parser.QueryParser.op_clause(QueryParser.java:7047) at org.apache.pig.parser.QueryParser.general_statement(QueryParser.java:2314) at org.apache.pig.parser.QueryParser.statement(QueryParser.java:1579) at org.apache.pig.parser.QueryParser.query(QueryParser.java:395) at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:236) at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:179) at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1684) at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1657) at org.apache.pig.PigServer.registerQuery(PigServer.java:600) at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1069) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:501) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:228) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:203) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:66) at org.apache.pig.Main.run(Main.java:542) 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)

我在网上搜索了很多内容，但找不到任何有用的东西，请紧急帮助

Answer 1

这看起来像是类冲突。确保使用的antlr jar文件版本与pig所需的版本匹配。