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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Pig cannot load data using hbasestorage
Date Mon, 09 Dec 2013 01:55:00 GMT
Kyle:
According to http://hortonworks.com/products/hdp-2/ , PIG 0.12 should be
used where there is no such problem.

Did you happen to use HDP 2 Beta ?

Cheers


On Mon, Dec 9, 2013 at 9:49 AM, Kyle Lin <kylelin2000@gmail.com> wrote:

> Hello Ted
>
>     Below is the stack trace. May I say that because HBase having
> removed WritableByteArrayComparable, but pig is not upgrade for this
> change?
>
>
> Pig Stack Trace
> ---------------
> 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:247)
>         at
> org.apache.pig.impl.PigContext.resolveClassName(PigContext.java:510)
>         at
>
> org.apache.pig.parser.LogicalPlanBuilder.validateFuncSpec(LogicalPlanBuilder.java:1220)
>         at
>
> org.apache.pig.parser.LogicalPlanBuilder.buildFuncSpec(LogicalPlanBuilder.java:1208)
>         at
>
> org.apache.pig.parser.LogicalPlanGenerator.func_clause(LogicalPlanGenerator.java:4849)
>         at
>
> org.apache.pig.parser.LogicalPlanGenerator.load_clause(LogicalPlanGenerator.java:3206)
>         at
>
> org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1338)
>         at
>
> org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:822)
>         at
>
> org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:540)
>         at
>
> org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:415)
>         at
> org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:181)
>         at
> org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1633)
>         at
> org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1606)
>         at org.apache.pig.PigServer.registerQuery(PigServer.java:565)
>         at
> org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1032)
>         at
>
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:499)
>         at
>
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:194)
>         at
>
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:170)
>         at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69)
>         at org.apache.pig.Main.run(Main.java:543)
>         at org.apache.pig.Main.main(Main.java:158)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         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$1.run(URLClassLoader.java:202)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
>         ... 27 more
>
>
>
> Kyle
>
>
> 2013/12/7 Ted Yu <yuzhihong@gmail.com>
>
> > bq. HDP2(HBase 0.95.2.2.0.5.0-64
> >
> > HDP2 goes with 0.96.0
> >
> > bq. java.lang.ClassNotFoundException: org.apache.hadoop.hbase.filter.
> > WritableByteArrayComparable.
> >
> > Can you show us the stack trace ?
> > WritableByteArrayComparable doesn't exist in 0.96 and later branches.
> >
> > Cheers
> >
> >
> > On Sat, Dec 7, 2013 at 4:22 AM, Rohini Palaniswamy
> > <rohini.aditya@gmail.com>wrote:
> >
> > > Do a register of your hbase and zookeeper jars in the pig script.
> > >
> > > -Rohini
> > >
> > >
> > > On Fri, Dec 6, 2013 at 1:56 AM, Kyle Lin <kylelin2000@gmail.com>
> wrote:
> > >
> > > > Hey there
> > > >
> > > >     First, my Environment: Hortonworks HDP2(HBase 0.95.2.2.0.5.0-64,
> > Pig
> > > > 0.11.1).
> > > >
> > > >     I use pig to load data from hbase, then got Exception Message of
> > > > java.lang.ClassNotFoundException:
> > > > org.apache.hadoop.hbase.filter.WritableByteArrayComparable.
> > > >
> > > >     My script is like below:
> > > > samples = LOAD 'hbase://test' using
> > > >   org.apache.pig.backend.hadoop.hbase.HBaseStorage('cf:name cf:phone
> > > > cf:city cf:address')
> > > >   as (name, phone, city, address);
> > > > dump samples;
> > > >
> > > >     After googling, people said you need to set PIG_CLASSPATH first.
> > So I
> > > > try to add the target jar in PIG_CLASSPATH, but cannot
> > > > find org.apache.hadoop.hbase.filter.WritableByteArrayComparable in
> any
> > > > hbase jars.
> > > >
> > > >
> > > > Kyle
> > > >
> > >
> >
>

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