Exit CCA-505 Cloudera Certified Administrator for Apache Hadoop (CCAH) CDH5 Upgrade Exam
Question 4 of 5
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Q4 Multiple choice

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

Select all that apply.

  • 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 sapred-site.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>