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From Joe Ciaramitaro <joe.ciaramitaro.ads...@gmail.com>
Subject Re: attempt to override final parameter
Date Mon, 13 Sep 2010 19:56:56 GMT
Thanks Jamie,

That resolved the problem.

On to the next issue :)

On Sep 13, 2010, at 11:24 AM, Jamie Cockrill wrote:

> Hi Joe,
> 
> A copy of each is typically included in the hadoop jars (core i
> think). Try unzipping them and having a look.
> 
> Ta
> 
> Jamie
> 
> On 13 September 2010 15:51, Joe Ciaramitaro
> <joe.ciaramitaro.adsafe@gmail.com> wrote:
>> I'm running 2 VirtualBox instances of CentOS 5.5 to practice a migration from hadoop
0.18.3 to 0.20.2
>> 
>> Although the script I followed worked fine and I was able to migrate my filesystem
to the new version, whenever I run anything on the virtual cluster, even a simple "hadoop
dfs -ls", I get the following errors:
>> 
>> 10/09/13 10:41:10 WARN conf.Configuration: hdfs-default.xml:a attempt to override
final parameter: dfs.datanode.handler.count;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: hdfs-default.xml:a attempt to override
final parameter: dfs.datanode.du.reserved;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: hdfs-default.xml:a attempt to override
final parameter: dfs.name.dir;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: hdfs-default.xml:a attempt to override
final parameter: dfs.permissions;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: hdfs-default.xml:a attempt to override
final parameter: dfs.data.dir;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: hdfs-default.xml:a attempt to override
final parameter: dfs.replication;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: hdfs-default.xml:a attempt to override
final parameter: dfs.block.size;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: hdfs-default.xml:a attempt to override
final parameter: dfs.namenode.handler.count;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.job.tracker;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.job.tracker.handler.count;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.local.dir;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.reduce.tasks;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.jobtracker.taskScheduler;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.reduce.parallel.copies;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.tasktracker.map.tasks.maximum;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.tasktracker.reduce.tasks.maximum;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.child.java.opts;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.reduce.tasks.speculative.execution;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: tasktracker.http.threads;  Ignoring.
>> 10/09/13 10:41:10 WARN conf.Configuration: mapred-default.xml:a attempt to override
final parameter: mapred.output.compression.type;  Ignoring.
>> 
>> I understand what the message is saying, but I cannot find hdfs-default.xml or mapred-default.xml
anywhere on either machine.
>> 
>> [hadoop@localhost conf]$ locate mapred-default.xml
>> [hadoop@localhost conf]$ locate hdfs-default.xml
>> 
>> Please help.
>> 
>> -Joe


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