What additional capability does Ganglia provide to monitor a Hadoop?
What additional capability does Ganglia provide to monitor a Hadoop?
why should you run the HDFS balancer periodically?
Choose three reasons why should you run the HDFS balancer periodically?
Which two features does Kerberos security add to a Hadoop cluster?
Which two features does Kerberos security add to a Hadoop cluster?
Where does a MapReduce job store the intermediate data output from Mappers?
Where does a MapReduce job store the intermediate data output from Mappers?
In a cluster configured with HDFS High Availability (HA) but NOT HDFS federation, each map task run:
In a cluster configured with HDFS High Availability (HA) but NOT HDFS federation, each map task
run:
How much disk space can your new nodes contain?
Your existing Hadoop cluster has 30 slave nodes, each of which has 4 x 2T hard drives. You plan
to add another 10 nodes. How much disk space can your new nodes contain?
Identify the daemon that performs checkpoint operations of the namespace state in a cluster configured with HD
Identify the daemon that performs checkpoint operations of the namespace state in a cluster
configured with HDFS High Availability (HA) using Quorum based-storage?
Which best describes how you determine when the last checkpoint happened?
You are running a Hadoop cluster with NameNode on host mynamenode, a secondary NameNode
on host mysecondary and DataNodes.
Which best describes how you determine when the last checkpoint happened?
What do install and/or configure?
Your developers request that you enable them to use Hive on your Hadoop cluster. What do install
and/or configure?
Which two best describes how the FIFO Scheduler arbitrates the cluster resources for a job and its tasks?
You have cluster running with the FIFO Scheduler enabled. You submit a large job A to the
cluster, which you expect to run for one hour. Then, you submit job B to cluster, which you expect
to run a couple of minutes only.
You submit both jobs with the same priority.
Which two best describes how the FIFO Scheduler arbitrates the cluster resources for a job and its
tasks?