Check your mapred site xml if these parameters have <final>true</final>
making final to false should solve your problem. On Wed, Jun 6, 2012 at 3:41 PM, Sid Kumar <sqlsid...@gmail.com> wrote: > Hi, > I am trying to override mapred-site.xml (more specifically > mapred.compress.map.output > and mapred.output.compression. > codec) from the command line when I > execute the jar. > I have been using hadoop jar <jarname> <class> - > Dmapred.compress.map.output=true and > -Dmapred.output.compression.codec=org.apache.hadoop.io.SnappyCodec > > The above doesnt work as the job.xml for the jar still uses the default > properties and not the one i specify here. Is there a different approach to > override these properties. I am submitting jobs from a client machine that > has the same version of configuration files as my cluster. > > Thanks > > Sid >