The 0.7 branch of EB is not a real thing, it's hirohanin's first
attempt at porting that has a billion bugs.
Most things in it do not, in fact, work.
Use the 0.8 branch and Pig 0.8...

D

On Fri, Feb 11, 2011 at 10:47 AM, Kris Coward <[email protected]> wrote:
>
> So in the interest of being a little less i/o bound, and saving a whole
> mess of disk, I've started using
> com.twitter.elephantbird.pig.store.LzoTokenizedStorage for storage... or
> more accurately, will be using it as soon as I stop getting the
> following error (with stack trace):
>
> ERROR 2998: Unhandled internal error. Implementing class
>
> java.lang.IncompatibleClassChangeError: Implementing class
>        at java.lang.ClassLoader.defineClass1(Native Method)
>        at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
>        at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
>        at 
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
>        at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
>        at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
>        at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
>        at java.security.AccessController.doPrivileged(Native Method)
>        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
>        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
>        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
>        at java.lang.ClassLoader.defineClass1(Native Method)
>        at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
>        at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
>        at 
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
>        at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
>        at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
>        at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
>        at java.security.AccessController.doPrivileged(Native Method)
>        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
>        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
>        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
>        at java.lang.Class.forName0(Native Method)
>        at java.lang.Class.forName(Class.java:247)
>        at org.apache.pig.impl.PigContext.resolveClassName(PigContext.java:422)
>        at 
> org.apache.pig.impl.PigContext.instantiateFuncFromSpec(PigContext.java:452)
>        at 
> org.apache.pig.impl.logicalLayer.parser.QueryParser.NonEvalFuncSpec(QueryParser.java:5087)
>        at 
> org.apache.pig.impl.logicalLayer.parser.QueryParser.StoreClause(QueryParser.java:3568)
>        at 
> org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:1369)
>        at 
> org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:911)
>        at 
> org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:724)
>        at 
> org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:63)
>        at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1336)
>        at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1286)
>        at org.apache.pig.PigServer.registerQuery(PigServer.java:460)
>        at 
> org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:738)
>        at 
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:324)
>        at 
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:163)
>        at 
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:139)
>        at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:89)
>        at org.apache.pig.Main.main(Main.java:414)
>
> Anyhow, the host machine is running CentOS, with the Cloudera
> distribution of hadoop and pig (pig version: Apache Pig version 0.7.0+16),
> and elephant-bird from the hadoop-gpl-packing RPM. The tweaks described
> at http://code.google.com/p/hadoop-gpl-packing/#Using_in_Pig have been
> applied, and the class still seems to be failing to load.
>
> Anyone have any idea what the problem might be (or how to solve it)?
>
> Thanks,
> Kris
>
>
> --
> Kris Coward                                     http://unripe.melon.org/
> GPG Fingerprint: 2BF3 957D 310A FEEC 4733  830E 21A4 05C7 1FEB 12B3
>

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