[
https://issues.apache.org/jira/browse/HADOOP-2007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12533020
]
Owen O'Malley commented on HADOOP-2007:
---------------------------------------
Please configure mapred.system.dir to be a constant and somewhere outside of
/tmp. I personally like to use something like /hadoop/system so that it is very
clear that this is a framework directory.
> Jobs use incorrect path to job.xml for different users
> ------------------------------------------------------
>
> Key: HADOOP-2007
> URL: https://issues.apache.org/jira/browse/HADOOP-2007
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.14.1
> Environment: OS: Red Hat Enterprise Linux AS release 4 (Nahant Update
> 5) - AMD64
> JRE: java full version "1.6.0_02-b05"
> Reporter: Ryan Lynch
>
> We run hadoop/hdfs under a generic username of 'hadoop'. When submitting a
> job as user 'fred', the job.xml file gets created correctly as
> /tmp/*hadoop-fred*/mapred/system/<job_id>/job.xml, but the JobInProgress
> constructor appears to use the incorrect path of
> /tmp/*hadoop-hadoop*/mapred/system/<job_id>/job.xml for the copyToLocalFile
> operation. This results in an exception because the job.xml file does not
> exist under /tmp/hadoop-hadoop.
> I think the incorrect path gets created on line 133 in JobInProgress.java
> right before the call to copyToLocalFile. If I hardcode the correct path
> (just to test my theory) of "/tmp/hadoop-fred/mapred/system" in place of the
> call to default_conf.getSystemDir(), the job kicks off and runs to completion
> as the user 'fred' with hadoop/hdfs running as the user 'hadoop'.
> Here's a portion of the output when the job is submitted by user 'fred':
> [EMAIL PROTECTED] ~]$ hadoop --config /usr/local/hadoop/conf jar
> /usr/local/hadoop/current/hadoop-0.14.1-examples.jar wordcount
> mytest/input/data output2
> 07/10/07 17:52:14 INFO mapred.FileInputFormat: Total input paths to process :
> 62
> org.apache.hadoop.ipc.RemoteException: java.io.IOException:
> /tmp/hadoop-hadoop/mapred/system/job_200710071751_0002/job.xml: No such file
> or directory
> at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:138)
> at
> org.apache.hadoop.fs.FileSystem.copyToLocalFile(FileSystem.java:803)
> at
> org.apache.hadoop.fs.FileSystem.copyToLocalFile(FileSystem.java:784)
> at
> org.apache.hadoop.mapred.JobInProgress.<init>(JobInProgress.java:134)
> at org.apache.hadoop.mapred.JobTracker.submitJob(JobTracker.java:1479)
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
