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Posted to dev@pig.apache.org by "Viraj Bhat (JIRA)" <ji...@apache.org> on 2010/01/28 01:14:39 UTC
[jira] Updated: (PIG-940) Cross site HDFS access using the
default.fs.name not possible in Pig
[ https://issues.apache.org/jira/browse/PIG-940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Viraj Bhat updated PIG-940:
---------------------------
Affects Version/s: (was: 0.3.0)
0.5.0
Fix Version/s: 0.7.0
> Cross site HDFS access using the default.fs.name not possible in Pig
> --------------------------------------------------------------------
>
> Key: PIG-940
> URL: https://issues.apache.org/jira/browse/PIG-940
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.5.0
> Environment: Hadoop 20
> Reporter: Viraj Bhat
> Fix For: 0.7.0
>
>
> I have a script which does the following.. access data from a remote HDFS location (via a HDFS installed at:hdfs://remotemachine1.company.com/ ) [[as I do not want to copy this huge amount of data between HDFS locations]].
> However I want my Pigscript to write data to the HDFS running on localmachine.company.com.
> Currently Pig does not support that behavior and complains that: "hdfs://localmachine.company.com/user/viraj/A1.txt does not exist"
> {code}
> A = LOAD 'hdfs://remotemachine1.company.com/user/viraj/A1.txt' as (a, b);
> B = LOAD 'hdfs://remotemachine1.company.com/user/viraj/B1.txt' as (c, d);
> C = JOIN A by a, B by c;
> store C into 'output' using PigStorage();
> {code}
> =======================================================================================================================================
> 2009-09-01 00:37:24,032 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to hadoop file system at: hdfs://localmachine.company.com:8020
> 2009-09-01 00:37:24,277 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to map-reduce job tracker at: localmachine.company.com:50300
> 2009-09-01 00:37:24,567 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MRCompiler$LastInputStreamingOptimizer - Rewrite: POPackage->POForEach to POJoinPackage
> 2009-09-01 00:37:24,573 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MultiQueryOptimizer - MR plan size before optimization: 1
> 2009-09-01 00:37:24,573 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MultiQueryOptimizer - MR plan size after optimization: 1
> 2009-09-01 00:37:26,197 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler - Setting up single store job
> 2009-09-01 00:37:26,249 [Thread-9] WARN org.apache.hadoop.mapred.JobClient - Use GenericOptionsParser for parsing the arguments. Applications should implement Tool for the same.
> 2009-09-01 00:37:26,746 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 0% complete
> 2009-09-01 00:37:26,746 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 100% complete
> 2009-09-01 00:37:26,747 [main] ERROR org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 1 map reduce job(s) failed!
> 2009-09-01 00:37:26,756 [main] ERROR org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Failed to produce result in: "hdfs:/localmachine.company.com/tmp/temp-1470407685/tmp-510854480"
> 2009-09-01 00:37:26,756 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Failed!
> 2009-09-01 00:37:26,758 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2100: hdfs://localmachine.company.com/user/viraj/A1.txt does not exist.
> Details at logfile: /home/viraj/pigscripts/pig_1251765443851.log
> =======================================================================================================================================
> The error file in Pig contains:
> =======================================================================================================================================
> ERROR 2998: Unhandled internal error. org.apache.pig.backend.executionengine.ExecException: ERROR 2100: hdfs://localmachine.company.com/user/viraj/A1.txt does not exist.
> at org.apache.pig.backend.executionengine.PigSlicer.validate(PigSlicer.java:126)
> at org.apache.pig.impl.io.ValidatingInputFileSpec.validate(ValidatingInputFileSpec.java:59)
> at org.apache.pig.impl.io.ValidatingInputFileSpec.<init>(ValidatingInputFileSpec.java:44)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:228)
> at org.apache.hadoop.mapred.JobClient.writeOldSplits(JobClient.java:810)
> at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:781)
> at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:730)
> at org.apache.hadoop.mapred.jobcontrol.Job.submit(Job.java:378)
> 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)
> java.lang.Exception: org.apache.pig.backend.executionengine.ExecException: ERROR 2100: hdfs://localmachine.company.com/user/viraj/A1.txt does not exist.
> at org.apache.pig.backend.executionengine.PigSlicer.validate(PigSlicer.java:126)
> at org.apache.pig.impl.io.ValidatingInputFileSpec.validate(ValidatingInputFileSpec.java:59)
> at org.apache.pig.impl.io.ValidatingInputFileSpec.<init>(ValidatingInputFileSpec.java:44)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:228)
> at org.apache.hadoop.mapred.JobClient.writeOldSplits(JobClient.java:810)
> at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:781)
> at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:730)
> at org.apache.hadoop.mapred.jobcontrol.Job.submit(Job.java:378)
> 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)
> =======================================================================================================================================
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