Which two features does Kerberos security add to a Hadoop cluster?
Which two features does Kerberos security add to a Hadoop cluster?
How does the HDFS architecture provide redundancy?
How does the HDFS architecture provide redundancy?
How are jobs scheduled?
You have a cluster running with the Fair Scheduler enabled and configured. You submit multiple
jobs to cluster. Each job is assigned to a pool. How are jobs scheduled? (Choose 2)
What does this tells you?
Cluster Summary
45 files and directories, 12 blocks = 57 total. Heap Size is 15.31 MB / 193.38MB(7%)
Refer to the above screenshot.
You configure the Hadoop cluster with seven DataNodes and the NameNode’s web UI displays
the details shown in the exhibit.
What does this tells you?
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?
What additional capability does Ganglia provide to that Hadoop alone DOES NOT provide?
What additional capability does Ganglia provide to that Hadoop alone DOES NOT provide?
Where are these log files stored?
For each job, the Hadoop framework generates task log files. Where are these log files stored?
Which of the following commands does Hadoop offer to discover missing or corrupt HDFS data?
Which of the following commands does Hadoop offer to discover missing or corrupt HDFS data?
Identity four pieces of cluster information that are stored on disk on the NameNode?
Identity four pieces of cluster information that are stored on disk on the NameNode?
How many Mappers will run?
On a cluster running MapReduce v1 (MRv1), a MapReduce job is given a directory of 10 plain text
as its input directory. Each file is made up of 3 HDFS blocks. How many Mappers will run?