Book Image

Scaling Big Data with Hadoop and Solr

By : Hrishikesh Vijay Karambelkar
Book Image

Scaling Big Data with Hadoop and Solr

By: Hrishikesh Vijay Karambelkar

Overview of this book

<p>As data grows exponentially day-by-day, extracting information becomes a tedious activity in itself. Technologies like Hadoop are trying to address some of the concerns, while Solr provides high-speed faceted search. Bringing these two technologies together is helping organizations resolve the problem of information extraction from Big Data by providing excellent distributed faceted search capabilities.</p> <p>Scaling Big Data with Hadoop and Solr is a step-by-step guide that helps you build high performance enterprise search engines while scaling data. Starting with the basics of Apache Hadoop and Solr, this book then dives into advanced topics of optimizing search with some interesting real-world use cases and sample Java code.</p> <p>Scaling Big Data with Hadoop and Solr starts by teaching you the basics of Big Data technologies including Hadoop and its ecosystem and Apache Solr. It explains the different approaches of scaling Big Data with Hadoop and Solr, with discussion regarding the applicability, benefits, and drawbacks of each approach. It then walks readers through how sharding and indexing can be performed on Big Data followed by the performance optimization of Big Data search. Finally, it covers some real-world use cases for Big Data scaling.</p> <p>With this book, you will learn everything you need to know to build a distributed enterprise search platform as well as how to optimize this search to a greater extent resulting in maximum utilization of available resources.</p>
Table of Contents (15 chapters)
Scaling Big Data with Hadoop and Solr
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Configuring SolrCloud to work with large indexes


In order to configure SolrCloud to run with large indexes, it is important to first design the system based on the requirements. The design has to be based on the following factors:

  • Number of nodes participating in the cloud

  • Distribution of shards and their replicas over nodes

  • Replication factors and leader

  • ZooKeeper setup

Prerequisites for this would require Apache Solr, ZooKeeper, J2EE container (optional).

Setting up the ZooKeeper ensemble

First, we need to set up a ZooKeeper ensemble on all the nodes. Although Apache Solr ships with embedded ZooKeeper, for large indexes and scalability requirements, it is recommended to go ahead with a full ZooKeeper set up. You can download the latest version of Apache ZooKeeper. Now, unzip the download on all the nodes, and edit the zoo.cfg file in your ZKHOME | conf folder; in that file, you need to specify the list of ZooKeeper servers as shown in the following screenshot. You must also specify correct dataDir...