Inconsistent error message when the message should be about
org.apache.hadoop.fs.permission.AccessControlException: Permission denied:
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Key: PIG-736
URL: https://issues.apache.org/jira/browse/PIG-736
Project: Pig
Issue Type: Bug
Affects Versions: 1.0.1
Reporter: Viraj Bhat
Fix For: 1.0.1
Suppose I have Pig script which accesses a directory in HDFS for which I do not
have permissions
shell> hadoop fs -ls /mydata/group_permissions/
drwxr-x--- - groupuser restrictedgroup 0 2009-03-24 10:58
/mydata/group_permissions/20090323
{code}
%default dates_to_process '20090323'
MYDATA = load '/mydata/group_permissions/{$dates_to_process}*' using
PigStorage() as (col1,col2,col3) ;
MYDATA_PROJECT = foreach MYDATA generate
(chararray) col1#'acct' as acct,
(int)col1#'country' as country,
(int)col1#'product' as product
dump MYDATA_PROJECT;
{code}
The error message we get is:
===============================================================================================
2009-03-26 00:00:05,753 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
2099: Problem in constructing slices.
Details at logfile: /home/viraj/pig_1238025596328.log
===============================================================================================
This message is definitely hard to debug
===============================================================================================
With the previous version 1.0.0 I get the following error message, which is
more appropriate to this case.
===============================================================================================
2009-03-26 00:01:41,787 [main] ERROR
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
- java.io.IOException: org.apache.hadoop.fs.permission.AccessControlException:
Permission denied: user=viraj, access=READ_EXECUTE,
inode="20090323":groupuser:restrictedgroup:rwxr-x---
[org.apache.hadoop.fs.permission.AccessControlException: Permission denied:
user=viraj, access=READ_EXECUTE,
inode="20090323":groupuser:restrictedgroup:rwxr-x---]
at
org.apache.pig.backend.hadoop.datastorage.HDirectory.iterator(HDirectory.java:157)
at
org.apache.pig.backend.executionengine.PigSlicer.slice(PigSlicer.java:77)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:206)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:742)
at org.apache.hadoop.mapred.jobcontrol.Job.submit(Job.java:370)
at
org.apache.hadoop.mapred.jobcontrol.JobControl.startReadyJobs(JobControl.java:247)
at
org.apache.hadoop.mapred.jobcontrol.JobControl.run(JobControl.java:279)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.RuntimeException:
org.apache.hadoop.fs.permission.AccessControlException: Permission denied:
user=viraj, access=READ_EXECUTE,
inode="20090323":groupuser:restrictedgroup:rwxr-x---
... 8 more
2009-03-26 00:01:41,798 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
1066: Unable to open iterator for alias MYDATA_PROJECT
Details at logfile: /home/viraj/pig_1238025692361.log
===============================================================================================
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