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Posted to common-issues@hadoop.apache.org by "Harsh J (Resolved) (JIRA)" <ji...@apache.org> on 2011/12/29 00:25:33 UTC
[jira] [Resolved] (HADOOP-2644) Remove the warning for attempting
to override a final parameter
[ https://issues.apache.org/jira/browse/HADOOP-2644?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Harsh J resolved HADOOP-2644.
-----------------------------
Resolution: Won't Fix
I disagree that we should remove this. It may be noise to a developer, but its good information for those who need to maintain and support them. Its a great indicator sometimes that the client configs are tweaked or are out of sync. There are a lot of other benefits I've seen as a result of this in the field.
However, we (very recently) did stop logging that if the overriding value is the same.
> Remove the warning for attempting to override a final parameter
> ---------------------------------------------------------------
>
> Key: HADOOP-2644
> URL: https://issues.apache.org/jira/browse/HADOOP-2644
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Owen O'Malley
>
> We should remove the warning that final configuration attributes are being overridden.
> In particular, in the task's logs, I get:
> {code}
> 2008-01-17 10:40:43,659 WARN org.apache.hadoop.conf.Configuration: /Users/oom/var/hadoop-trial/mapred/local/taskTracker/jobcache/job_200801171039_0001/task_200801171039_0001_m_000000_0/job.xml:a attempt to override final parameter: dfs.client.buffer.dir; Ignoring.
> 2008-01-17 10:40:43,661 WARN org.apache.hadoop.conf.Configuration: /Users/oom/var/hadoop-trial/mapred/local/taskTracker/jobcache/job_200801171039_0001/task_200801171039_0001_m_000000_0/job.xml:a attempt to override final parameter: hadoop.run.dir; Ignoring.
> 2008-01-17 10:40:43,661 WARN org.apache.hadoop.conf.Configuration: /Users/oom/var/hadoop-trial/mapred/local/taskTracker/jobcache/job_200801171039_0001/task_200801171039_0001_m_000000_0/job.xml:a attempt to override final parameter: mapred.local.dir; Ignoring.
> 2008-01-17 10:40:43,661 WARN org.apache.hadoop.conf.Configuration: /Users/oom/var/hadoop-trial/mapred/local/taskTracker/jobcache/job_200801171039_0001/task_200801171039_0001_m_000000_0/job.xml:a attempt to override final parameter: mapred.temp.dir; Ignoring.
> 2008-01-17 10:40:43,662 WARN org.apache.hadoop.conf.Configuration: /Users/oom/var/hadoop-trial/mapred/local/taskTracker/jobcache/job_200801171039_0001/task_200801171039_0001_m_000000_0/job.xml:a attempt to override final parameter: mapred.system.dir; Ignoring.
> {code}
> which is just noise from the user's point of view.
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