hdfs-site.sh
This file contains the configuration settings for HDFS daemons; the Name Node, the Secondary Name Node, and the data nodes.
Which of the file contains the configuration setting for HDFS daemons Mcq?
hdfs-site. xml: hdfs-site. xml contains configuration settings of HDFS daemons (i.e. NameNode, DataNode, Secondary NameNode).
Which of the following is configuration file in Hadoop?
Hadoop configuration is driven by two types of important configuration files: Read-only default configuration – src/core/core-default. xml, src/hdfs/hdfs-default. xml and src/mapred/mapred-default.
What is HDFS configuration files?
Configuration Files are the files which are located in the extracted tar. gz file in the etc/hadoop/ directory. All Configuration Files in Hadoop are listed below, 1) HADOOP-ENV.sh->>It specifies the environment variables that affect the JDK used by Hadoop Daemon (bin/hadoop).
Which directory contains Mapred site xml?
MapReduce configuration options are stored in the /opt/mapr/hadoop/hadoop-2. x.x/etc/hadoop/mapred-site. xml file and are editable by the root user. This file contains configuration information that overrides the default values for MapReduce parameters.
Which command is used for starting daemons of Hadoop?
These are: start-dfs.sh – Starts the Hadoop DFS daemons, the namenode and datanodes. Use this before start-mapred.sh. stop-dfs.sh – Stops the Hadoop DFS daemons.
What is HDFS Mcq?
HDFS – Hadoop Distributed File System
The section contains MCQs on distributed file systems(HDFS), data flows and interfaces and archives of hadoop. Introduction to HDFS. Java Interface.
Which of the configuration file is used to control the HDFS replication factor?
hdfs-site. xml configuration file is used to control the HDFS replication factor.
What was Hadoop named after Mcq?
What was Hadoop named after? Explanation: Doug Cutting, Hadoop creator, named the framework after his child’s stuffed toy elephant. Explanation: Apache Hadoop is an open-source software framework for distributed storage and distributed processing of Big Data on clusters of commodity hardware. 8.
Which file contains the configuration setting for NodeManager and ResourceManager?
yarn-site. xml: yarn-site. xml contains configuration settings of ResourceManager and NodeManager like application memory management size, the operation needed on program & algorithm, etc.
What are the additional configuration properties to set for HDFS?
Hadoop has following configuration files: -> hadoop-env.sh. 1) core-site.xml. This file defines port number, memory, memory limits, size of read/write buffers used by Hadoop. 2) hdfs-site.xml. This is the main configuration file for HDFS. 3) yarn-site.xml. 4) mapred-site.xml. 5) hadoop-env.sh. 6) master: 7) Slave:
What kind of scaling does HDFS support?
HDFS was designed as a scalable distributed file system to support thousands of nodes within a single cluster. With enough hardware, scaling to over 100 petabytes of raw storage capacity in one cluster can be easily—and quickly—achieved.
Which file contains configuration for resource manager?
/etc/hadoop/conf/yarn-site.xml
This file contains configuration settings for YARN. It is used by the Client, the Node Manager, and the Resource Manager. The following table lists some important yarn-site.
What are the daemons required to run a Hadoop cluster?
Apache Hadoop 2 consists of the following Daemons:
NameNode.DataNode.Secondary Name Node.Resource Manager.Node Manager.
Which command is used to list the contents in the HDFS?
Hadoop HDFS ls Command Description:
The Hadoop fs shell command ls displays a list of the contents of a directory specified in the path provided by the user.
