Briefing Cloudera Knowledge

Which three basic configuration parameters must you set to migrate your cluster from MapReduce1 (MRv

Which three basic configuration parameters must you set to migrate your cluster from
MapReduce1 (MRv1) to MapReduce v2 (MRv2)?

A.
Configure the NodeManager hostname and enable services on YARN by setting the

following property in yarn-site.xml: <name>yarn.nodemanager.hostname</name>
<value>your_nodeManager_hostname</value>

B.
Configure the number of map tasks per job on YARN by setting the following property in
mapred-site.xml: <name>mapreduce.job.maps</name> <value>2</value>

C.
Configure MapReduce as a framework running on YARN by setting the following
property in mapred-site.xml: <name>mapreduce.framework.name</name>
<value>yarn</value>

D.
Configure the ResourceManager hostname and enable node services on YARN by
setting the following property in yarn-site.xml:
<name>yarn.resourcemanager.hostname</name>
<value>your_responseManager_hostname</value>

E.
Configure a default scheduler to run on YARN by setting the following property in
sapredsite. xml: <name>mapreduce.jobtracker.taskScheduler</name>
<value>org.apache.hadoop.mapred.JobQueueTaskScheduler</value>

F.
Configure the NodeManager to enable MapReduce services on YARN by adding
following property in yarn-site.xml: <name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>