which best describes how the Hadoop Framework distributes block writes into HDFS from a Reducer outputting a 1
Your Hadoop cluster has 12 slave nodes, a block size set to 64MB, and a replication factor of
three.
Choose which best describes how the Hadoop Framework distributes block writes into HDFS from
a Reducer outputting a 150MB file?
Which scheduler would you deploy to ensure that your cluster allows short jobs to finish within a reasonable t
Which scheduler would you deploy to ensure that your cluster allows short jobs to finish within a
reasonable time without starving long-running jobs?
What is Hadoop’s block placement policy, assuming a block replication factor of three?
Your cluster has nodes in seven racks, and you have provided a rack topology script. What is
Hadoop’s block placement policy, assuming a block replication factor of three?
What determines the number of Reduces that run a given MapReduce job on a cluster running MapReduce v1 (MRv1)?
What determines the number of Reduces that run a given MapReduce job on a cluster running
MapReduce v1 (MRv1)?
which scenario would it be most appropriate to consider using faster (e.g 10 Gigabit) Ethernet as the network
Under which scenario would it be most appropriate to consider using faster (e.g 10 Gigabit)
Ethernet as the network fabric for your Hadoop cluster?
you need to deploy at a minimum to store one year’s worth of data.
You are planning a Hadoop duster, and you expect to be receiving just under 1TB of data per
week which will be stored on the cluster, using Hadoop’s default replication. You decide that your
slave nodes will be configured with 4 x 1TB disks.
Calculate how many slave nodes you need to deploy at a minimum to store one year’s worth of
data.
In the context of configuring a Hadoop cluster for HDFS High Availability (HA), ‘fencing’ refers to:
In the context of configuring a Hadoop cluster for HDFS High Availability (HA), ‘fencing’ refers to:
Which of the following scenarios makes HDFS unavailable?
Which of the following scenarios makes HDFS unavailable?
Which of the following describe the functions of a scheduling algorithm?
Which of the following describe the functions of a scheduling algorithm? (Choose 4)
What happens if a Mapper on one node goes into an infinite loop while running a MapReduce job?
What happens if a Mapper on one node goes into an infinite loop while running a MapReduce job?