What happens when you "hadoop fs -lsr" those paths? D
On Sun, Feb 27, 2011 at 7:47 PM, Kris Coward <[email protected]> wrote: > > So I finally got a couple of test scripts running on my cluster to take > a sample data file, load it, do a little processing, store it, load it, > do a little more processing, and dump the results. > > Once these were working, I set to parsing and storing some real data, > but when got an "Unable to create input slice" error when trying to load > this data back out again. This happened with each of: > > foo = LOAD '/path/to/file/{item,list,glob}/*/subdir' USING > com.twitter.elephantbird.pig.load.LzoTokenizedLoader(',') AS (schema:...); > foo = LOAD '/path/to/file/item/*/subdir' USING > com.twitter.elephantbird.pig.load.LzoTokenizedLoader(',') AS (schema:...); > foo = LOAD '/path/to/file/item/ex/subdir' USING > com.twitter.elephantbird.pig.load.LzoTokenizedLoader(',') AS (schema:...); > > and yielded the error (the same each time, except for the name/glob > used): > > ERROR 2997: Unable to recreate exception from backend error: > org.apache.pig.backend.executionengine.ExecException: ERROR 2118: Unable to > create input slice for: > hdfs://master.hadoop:9000//path/to/file/item/ex/subdir > org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to > open iterator for alias foo > at org.apache.pig.PigServer.openIterator(PigServer.java:482) > at > org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:539) > at > org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:241) > at > org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:168) > at > org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:144) > at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75) > at org.apache.pig.Main.main(Main.java:352) > Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR > 2997: Unable to recreate exception from backend error: > org.apache.pig.backend.executionengine.ExecException: ERROR 2118: Unable to > create input slice for: > hdfs://master.hadoop:9000/path/to/file/item/ex/subdir > at > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.Launcher.getStats(Launcher.java:176) > at > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:253) > at > org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:249) > at > org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:781) > at org.apache.pig.PigServer.store(PigServer.java:529) > at org.apache.pig.PigServer.openIterator(PigServer.java:465) > ... 6 more > > > Anyone have any suggestions why this may be happening and how to fix it? > > Thanks, > Kris > > -- > Kris Coward http://unripe.melon.org/ > GPG Fingerprint: 2BF3 957D 310A FEEC 4733 830E 21A4 05C7 1FEB 12B3 >
