[
https://issues.apache.org/jira/browse/PIG-2396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13162447#comment-13162447
]
Dmitriy V. Ryaboy commented on PIG-2396:
----------------------------------------
The error is caused by 1 of the map-reduce jobs this script generates failing.
To find out why it failed, you need the error logs of the failing tasks. If you
go to the jobtracker page, you should be able to see them. Could you post those
logs?
> Unable to open iterator for alias C
> -----------------------------------
>
> Key: PIG-2396
> URL: https://issues.apache.org/jira/browse/PIG-2396
> Project: Pig
> Issue Type: Bug
> Reporter: vaibhav
>
> hi ....
> how to remove this error
> my script is this
> users = load 'users' as (name:chararray, city:chararray);
> cinfo = load 'cityinfo' as (city:chararray, population:int);
> jnd = join cinfo by city, users by city using 'skewed';
> but error comes like that
> 2011-12-05 00:18:30,517 [main] INFO
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
> - 100% complete
> 2011-12-05 00:18:30,517 [main] ERROR
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
> - 1 map reduce job(s) failed!
> 2011-12-05 00:18:30,517 [main] ERROR
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
> - Failed to produce result in:
> "hdfs://localhost:54310/tmp/temp373391612/tmp1555821947"
> 2011-12-05 00:18:30,517 [main] INFO
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
> - Some jobs have failed! Stop running all dependent jobs
> 2011-12-05 00:18:30,531 [main] INFO org.apache.hadoop.metrics.jvm.JvmMetrics
> - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= -
> already initialized
> 2011-12-05 00:18:30,969 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1066: Unable to open iterator for alias jnd
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
