I'm using data stored in avro-1.7.4 format and trying to use Pig for data manipulation. When trying to LOAD data and then STORE them again I've receive following error: ERROR 2116: Output Location Validation Failed for: 'file:///home/pig/100/test.avro More info to follow: Can't redefine: Employees Any ideas / suggestions would be appreciated. Thanks. Martin Repka ---------------------------------------------------------------------------------------------------- More of stacktrace:
Pig Stack Trace --------------- ERROR 2116: Output Location Validation Failed for: 'file:///home/pig/100/test.avro More info to follow: Can't redefine: Employees org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias posdata at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1635) at org.apache.pig.PigServer.registerQuery(PigServer.java:575) at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1093) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:501) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:198) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:173) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69) at org.apache.pig.Main.run(Main.java:541) at org.apache.pig.Main.main(Main.java:156) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.hadoop.util.RunJar.main(RunJar.java:212) Caused by: org.apache.pig.impl.plan.VisitorException: ERROR 2116: Output Location Validation Failed for: 'file:///home/pig/100/test.avro More info to follow: Can't redefine: Employees at org.apache.pig.newplan.logical.rules.InputOutputFileValidator$InputOutputFileVisitor.visit(InputOutputFileValidator.java:75) at org.apache.pig.newplan.logical.relational.LOStore.accept(LOStore.java:66) at org.apache.pig.newplan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:64) at org.apache.pig.newplan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:66) at org.apache.pig.newplan.DepthFirstWalker.walk(DepthFirstWalker.java:53) at org.apache.pig.newplan.PlanVisitor.visit(PlanVisitor.java:52) at org.apache.pig.newplan.logical.rules.InputOutputFileValidator.validate(InputOutputFileValidator.java:45) at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.compile(HExecutionEngine.java:300) at org.apache.pig.PigServer.compilePp(PigServer.java:1380) at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1305) at org.apache.pig.PigServer.execute(PigServer.java:1297) at org.apache.pig.PigServer.access$400(PigServer.java:122) at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1630) ... 13 more Caused by: org.apache.avro.SchemaParseException: Can't redefine: Employees at org.apache.avro.Schema$Names.put(Schema.java:1019) at org.apache.avro.Schema$NamedSchema.writeNameRef(Schema.java:496) at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:611) at org.apache.avro.Schema$UnionSchema.toJson(Schema.java:799) at org.apache.avro.Schema$RecordSchema.fieldsToJson(Schema.java:633) at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:620) at org.apache.avro.Schema$UnionSchema.toJson(Schema.java:799) at org.apache.avro.Schema$RecordSchema.fieldsToJson(Schema.java:633) at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:620) at org.apache.avro.Schema$ArraySchema.toJson(Schema.java:722) at org.apache.avro.Schema$UnionSchema.toJson(Schema.java:799) at org.apache.avro.Schema$RecordSchema.fieldsToJson(Schema.java:633) at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:620) at org.apache.avro.Schema$ArraySchema.toJson(Schema.java:722) at org.apache.avro.Schema$UnionSchema.toJson(Schema.java:799) at org.apache.avro.Schema$RecordSchema.fieldsToJson(Schema.java:633) at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:620) at org.apache.avro.Schema$ArraySchema.toJson(Schema.java:722) at org.apache.avro.Schema$UnionSchema.toJson(Schema.java:799) at org.apache.avro.Schema$RecordSchema.fieldsToJson(Schema.java:633) at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:620) at org.apache.avro.Schema$UnionSchema.toJson(Schema.java:799) at org.apache.avro.Schema$RecordSchema.fieldsToJson(Schema.java:633) at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:620) at org.apache.avro.Schema.toString(Schema.java:291) at org.apache.avro.Schema.toString(Schema.java:281) at org.apache.pig.builtin.AvroStorage.setOutputAvroSchema(AvroStorage.java:504) at org.apache.pig.builtin.AvroStorage.checkSchema(AvroStorage.java:495) at org.apache.pig.newplan.logical.rules.InputOutputFileValidator$InputOutputFileVisitor.visit(InputOutputFileValidator.java:65) ... 25 more