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https://issues.apache.org/jira/browse/PIG-1378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Pradeep Kamath updated PIG-1378:
--------------------------------
Status: Patch Available (was: Open)
> har url not usable in Pig scripts
> ---------------------------------
>
> Key: PIG-1378
> URL: https://issues.apache.org/jira/browse/PIG-1378
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.7.0
> Reporter: Viraj Bhat
> Assignee: Pradeep Kamath
> Fix For: 0.8.0
>
> Attachments: PIG-1378-2.patch, PIG-1378.patch
>
>
> I am trying to use har (Hadoop Archives) in my Pig script.
> I can use them through the HDFS shell
> {noformat}
> $hadoop fs -ls 'har:///user/viraj/project/subproject/files/size/data'
> Found 1 items
> -rw------- 5 viraj users 1537234 2010-04-14 09:49
> user/viraj/project/subproject/files/size/data/part-00001
> {noformat}
> Using similar URL's in grunt yields
> {noformat}
> grunt> a = load 'har:///user/viraj/project/subproject/files/size/data';
> grunt> dump a;
> {noformat}
> {noformat}
> 2010-04-14 22:08:48,814 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 2998: Unhandled internal error.
> org.apache.pig.impl.logicalLayer.FrontendException: ERROR 0: Incompatible
> file URI scheme: har : hdfs
> 2010-04-14 22:08:48,814 [main] WARN org.apache.pig.tools.grunt.Grunt - There
> is no log file to write to.
> 2010-04-14 22:08:48,814 [main] ERROR org.apache.pig.tools.grunt.Grunt -
> java.lang.Error: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 0:
> Incompatible file URI scheme: har : hdfs
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.LoadClause(QueryParser.java:1483)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:1245)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:911)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:700)
> at
> org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:63)
> at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1164)
> at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1114)
> at org.apache.pig.PigServer.registerQuery(PigServer.java:425)
> at
> org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:737)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:324)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:162)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:138)
> at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75)
> at org.apache.pig.Main.main(Main.java:357)
> Caused by: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 0:
> Incompatible file URI scheme: har : hdfs
> at org.apache.pig.LoadFunc.getAbsolutePath(LoadFunc.java:249)
> at org.apache.pig.LoadFunc.relativeToAbsolutePath(LoadFunc.java:62)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.LoadClause(QueryParser.java:1472)
> ... 13 more
> {noformat}
> According to Jira http://issues.apache.org/jira/browse/PIG-1234 I try the
> following as stated in the original description
> {noformat}
> grunt> a = load
> 'har://namenode-location/user/viraj/project/subproject/files/size/data';
> grunt> dump a;
> {noformat}
> {noformat}
> Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2118:
> Unable to create input splits for:
> har://namenode-location/user/viraj/project/subproject/files/size/data';
> ... 8 more
> Caused by: java.io.IOException: No FileSystem for scheme: namenode-location
> at .apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1375)
> at .apache.hadoop.fs.FileSystem.access(200(FileSystem.java:66)
> at .apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1390)
> at .apache.hadoop.fs.FileSystem.get(FileSystem.java:196)
> at .apache.hadoop.fs.HarFileSystem.initialize(HarFileSystem.java:104)
> at .apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1378)
> at .apache.hadoop.fs.FileSystem.get(FileSystem.java:193)
> at .apache.hadoop.fs.Path.getFileSystem(Path.java:175)
> at
> .apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:208)
> at
> .apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigTextInputFormat.listStatus(PigTextInputFormat.java:36)
> at
> .apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:246)
> at
> .apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:245)
> {noformat}
> Viraj
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