Introduction to Big Data & Hadoop Fundamentals Goal :
In this module, you will understand Big Data, the limitations of the existing solutions for Big Data problem, how Hadoop solves the Big Data problem, the common Hadoop ecosystem components, Hadoop Architecture, HDFS, Anatomy of File Write and Read, how MapReduce Framework works. Objectives
- Upon completing this Module, you should be able to understand Big Data is a term applied to data sets that cannot be captured, managed, and processed within a tolerable elapsed and specified time frame by commonly used software tools.
Topics: Apache Hadoop
- Big Data relies on volume, velocity, and variety with respect to processing.
- Data can be divided into three types—unstructured data, semi-structured data, and structured data.
- Big Data technology understands and navigates big data sources, analyzes unstructured data, and ingests data at a high speed.
- Hadoop is a free, Java-based programming framework that supports the processing of large data sets in a distributed computing environment.
- Introduction to Big Data & Hadoop Fundamentals
- Dimensions of Big data
- Type of Data generation
- Apache ecosystem & its projects
- Hadoop distributors
- HDFS core concepts
- Modes of Hadoop employment
- HDFS Flow architecture
- HDFS MrV1 vs. MrV2 architecture
- Types of Data compression techniques
- Rack topology
- HDFS utility commands
- Min h/w requirements for a cluster & property files changes
MapReduce Framework Goal :
In this module, you will understand Hadoop MapReduce framework and the working of MapReduce on data stored in HDFS. You will understand concepts like Input Splits in MapReduce, Combiner & Partitioner and Demos on MapReduce using different data sets. Objectives
- Upon completing this Module, you should be able to understand MapReduce involves processing jobs using the batch processing technique.
Topics: Introduction to MapReduce
- MapReduce can be done using Java programming.
- Hadoop provides with Hadoop-examples jar file which is normally used by administrators and programmers to perform testing of the MapReduce applications.
- MapReduce contains steps like splitting, mapping, combining, reducing, and output.
- MapReduce Design flow
- MapReduce Program (Job) execution
- Types of Input formats & Output Formats
- MapReduce Datatypes
- Performance tuning of MapReduce jobs
- Counters techniques
Apache Hive Goal :
This module will help you in understanding Hive concepts, Hive Data types, Loading and Querying Data in Hive, running hive scripts and Hive UDF. Objectives
- Upon completing this Module, you should be able to understand Hive is a system for managing and querying unstructured data into a structured format.
Topics: Introduction to Hive & features
- The various components of Hive architecture are metastore, driver, execution engine, and so on.
- Metastore is a component that stores the system catalog and metadata about tables, columns, partitions, and so on.
- Hive installation starts with locating the latest version of tar file and downloading it in Ubuntu system using the wget command.
- While programming in Hive, use the show tables command to display the total number of tables.
- Hive architecture flow
- Types of hive tables flow
- DML/DDL commands explanation
- Partitioning logic
- Bucketing logic
- Hive script execution in shell & HUE
Apache Pig Goal :
In this module, you will learn Pig, types of use case we can use Pig, tight coupling between Pig and MapReduce, and Pig Latin scripting, PIG running modes, PIG UDF, Pig Streaming, Testing PIG Scripts. Demo on healthcare dataset. Objectives
- Upon completing this Module, you should be able to understand Pig is a high-level data flow scripting language and has two major components: Runtime engine and Pig Latin language.
- Pig runs in two execution modes: Local mode and MapReduce mode. Pig script can be written in two modes: Interactive mode and Batch mode.
- Pig engine can be installed by downloading the mirror web link from the website: pig.apache.org.
- Introduction to Pig concepts
- Pig modes of execution/storage concepts
- Pig program logics explanation
- Pig basic commands
- Pig script execution in shell/HUE
This module will cover Advanced HBase concepts. We will see demos on Bulk Loading, Filters. You will also learn what Zookeeper is all about, how it helps in monitoring a cluster, why HBase uses Zookeeper. Objectives
- Upon completing this Module, you should be able to understand HBasehas two types of Nodes—Master and RegionServer. Only one Master node runs at a time. But there can be multiple RegionServersat a time.
Topics: Apache Hbase GangBoard.com
- The data model of Hbasecomprises tables that are sorted by rows. The column families should be defined at the time of table creation.
- There are eight steps that should be followed for installation of HBase.
- Some of the commands related to HBaseshell are create, drop, list, count, get, and scan.
- Introduction to Hbase concepts
- Introdcution to NoSQL/CAP theorem concepts
- Hbase design/architecture flow
- Hbase table commands
- Hive + Hbase integration module/jars deployment
- Hbase execution in shell/HUE
Sqoop is an Apache Hadoop Eco-system project whose responsibility is to import or export operations across relational databases. Some reasons to use Sqoop are as follows:
- SQL servers are deployed worldwide
- Nightly processing is done on SQL servers
- Allows to move certain part of data from traditional SQL DB to Hadoop
- Transferring data using script is inefficient and time-consuming
- To handle large data through Ecosystem
- To bring processed data from Hadoop to the applications
- Upon completing this Module, you should be able to understand Sqoop is a tool designed to transfer data between Hadoop and RDBs including MySQL, MS SQL, Postgre SQL, MongoDB, etc.
Topics: Apache Sqoop
- Sqoop allows the import data from an RDB, such as SQL, MySQL or Oracle into HDFS.
- Introduction to Sqoop concepts
- Sqoop internal design/architecture
- Sqoop Import statements concepts
- Sqoop Export Statements concepts
- Quest Data connectors flow
- Incremental updating concepts
- Creating a database in MySQL for importing to HDFS
- Sqoop commands execution in shell/HUE
Apache Flume is a distributed data collection service that gets the flow of data from their source and aggregates them to where they need to be processed. Objectives
- Upon completing this Module, you should be able to understand Apache Flume is a distributed data collection service that gets the flow of data from their source and aggregates the data to sink.
Topics: Apache Flume
- Flume provides a reliable and scalable agent mode to ingest data into HDFS.
- Introduction to Flume & features
- Flume topology & core concepts
- Property file parameters logic
Hue is a web front end offered by the ClouderaVM to Apache Hadoop. Objectives
- Upon completing this Module, you should be able to understand how to use hue for hive,pig,oozie. Topics: Apache HUE
- Introduction to Hue design
- Hue architecture flow/UI interface
Following are the goals of ZooKeeper:
- Serialization ensures avoidance of delay in reading or write operations.
- Reliability persists when an update is applied by a user in the cluster.
- Atomicity does not allow partial results. Any user update can either succeed or fail.
- Simple Application Programming Interface or API provides an interface for development and implementation.
- Upon completing this Module, you should be able to understand ZooKeeper provides a simple and high-performance kernel for building more complex clients.
Topics: Apache Zookeeper
- ZooKeeper has three basic entities—Leader, Follower, and Observer.
- Watch is used to get the notification of all followers and observers to the leaders.
- Introduction to zookeeper concepts
- Zookeeper principles & usage in Hadoop framework
- Basics of Zookeeper
Explain different configurations of the Hadoop cluster
- Identify different parameters for performance monitoring and performance tuning
- Explain configuration of security parameters in Hadoop.
- Upon completing this Module, you should be able to understand Hadoop can be optimized based on the infrastructure and available resources.
Topics: Administration concepts
- Hadoop is an open-source application and the support provided for complicated optimization is less.
- Optimization is performed through xml files.
- Logs are the best medium through which an administrator can understand a problem and troubleshoot it accordingly.
- Hadoop relies on the Kerberos based security mechanism.
- Principles of Hadoop administration & its importance
- Hadoop admin commands explanation
- Balancer concepts
- Rolling upgrade mechanism explanation