Edit the XML file for MapReduce

If you are using MapReduce, you wil need to edit the mapred-site.xml file to indicate where the job history logs are stored and to allow MapReduce jobs to run across platforms.

Perform the following steps to edit the mapred-site.xml file.

1. Navigate to the *<username>*/.pentaho/metastore/pentaho/NamedCluster/Configs/*<user-defined connection name>* directory and open the mapred-site.xml file.
2. Add the following values for the parameter:

Parameter	Value
mapreduce.app-submission.cross-platform	This property is only needed to run MapReduce jobs on Windows platforms.```xmlmapreduce.app-submission.cross-platformtrue </td></tr></tbody> </table>3. Save and close the file.