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From "Olga Natkovich (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (PIG-1247) Error Number makes it hard to debug: ERROR 2999: Unexpected internal error. org.apache.pig.backend.datastorage.DataStorageException cannot be cast to java.lang.Error
Date Wed, 15 Sep 2010 17:27:34 GMT

     [ https://issues.apache.org/jira/browse/PIG-1247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Olga Natkovich reassigned PIG-1247:
-----------------------------------

    Assignee: Xuefu Zhang

> Error Number makes it hard to debug: ERROR 2999: Unexpected internal error. org.apache.pig.backend.datastorage.DataStorageException
cannot be cast to java.lang.Error
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: PIG-1247
>                 URL: https://issues.apache.org/jira/browse/PIG-1247
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.6.0
>            Reporter: Viraj Bhat
>            Assignee: Xuefu Zhang
>             Fix For: 0.9.0
>
>
> I have a large script in which there are intermediate stores statements, one of them
writes to a directory I do not have permission to write to. 
> The stack trace I get from Pig is this:
> 2010-02-20 02:16:32,055 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2999: Unexpected
internal error. org.apache.pig.backend.datastorage.DataStorageException cannot be cast to
java.lang.Error
> Details at logfile: /home/viraj/pig_1266632145355.log
> Pig Stack Trace
> ---------------
> ERROR 2999: Unexpected internal error. org.apache.pig.backend.datastorage.DataStorageException
cannot be cast to java.lang.Error
> java.lang.ClassCastException: org.apache.pig.backend.datastorage.DataStorageException
cannot be cast to java.lang.Error
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.StoreClause(QueryParser.java:3583)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:1407)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:949)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:762)
>         at org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:63)
>         at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1036)
>         at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:986)
>         at org.apache.pig.PigServer.registerQuery(PigServer.java:386)
>         at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:720)
>         at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:324)
>         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.exec(Grunt.java:89)
>         at org.apache.pig.Main.main(Main.java:386)
> ================================================================================
> The only way to find the error was to look at the javacc generated QueryParser.java code
and do a System.out.println()
> Here is a script to reproduce the problem:
> {code}
> A = load '/user/viraj/three.txt' using PigStorage();
> B = foreach A generate ['a'#'12'] as b:map[] ;
> store B into '/user/secure/pigtest' using PigStorage();
> {code}
> "three.txt" has 3 lines which contain nothing but the number "1".
> {code}
> $ hadoop fs -ls /user/secure/
> ls: could not get get listing for 'hdfs://mynamenode/user/secure' : org.apache.hadoop.security.AccessControlException:
Permission denied: user=viraj, access=READ_EXECUTE, inode="secure":secure:users:rwx------
> {code}
> Viraj

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