Edit Mapred site XML file

If you are using MapReduce, 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. Verify that the mapreduce.jobhistory.address and mapreduce.job.hdfs-servers properties properties are in the mapred-site.xml file. If they are not in the file, add them as follows.

Parameter

Value

mapreduce.jobhistory.address

Set this property to the place where job history logs are stored, as shown in the following example.```xmlmapreduce.jobhistory.address<active node name in the cluster>:10020 </td></tr><tr><td> **mapreduce.job.hdfs-servers properties** </td><td> Add this property for YARN. ```xml <property> <name>mapreduce.job.hdfs-servers</name> <value>hdfs://*&lt;active node name in the cluster&gt;*:8020</value> </property>

3. Save and close the file.