Book Image

Mastering Apache Solr 7.x

By : Sandeep Nair, Chintan Mehta, Dharmesh Vasoya
Book Image

Mastering Apache Solr 7.x

By: Sandeep Nair, Chintan Mehta, Dharmesh Vasoya

Overview of this book

Apache Solr is the only standalone enterprise search server with a REST-like application interface. providing highly scalable, distributed search and index replication for many of the world's largest internet sites. To begin with, you would be introduced to how you perform full text search, multiple filter search, perform dynamic clustering and so on helping you to brush up the basics of Apache Solr. You will also explore the new features and advanced options released in Apache Solr 7.x which will get you numerous performance aspects and making data investigation simpler, easier and powerful. You will learn to build complex queries, extensive filters and how are they compiled in your system to bring relevance in your search tools. You will learn to carry out Solr scoring, elements affecting the document score and how you can optimize or tune the score for the application at hand. You will learn to extract features of documents, writing complex queries in re-ranking the documents. You will also learn advanced options helping you to know what content is indexed and how the extracted content is indexed. Throughout the book, you would go through complex problems with solutions along with varied approaches to tackle your business needs. By the end of this book, you will gain advanced proficiency to build out-of-box smart search solutions for your enterprise demands.
Table of Contents (14 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Managing backups


Going into production, we obviously need a proper backup and restore plan. The last thing we would want is for our hard disk to crash and all our index data to disappear or get corrupted.

Solr provides two ways to back up based on how you are running it:

  • Collections API in SolrCloud mode
  • Replication handler in standalone mode

Backup in SolrCloud

As mentioned earlier, using the collections API, we can take backups in SolrCloud. Doing so will ensure that the backups are generated across multiple shards; and then, at the time of restore, we use the same number of shards and replicas as the original collection. The commands are listed here:

Command name

Description

action=BACKUP

Used to back up Solr indexes and configuration

action=RESTORE

Used to restore Solr indexes and configuration

Standalone mode backups

In the case of standalone mode, backups and restoration are done using replication handler. The configuration of replication handler can be customized using our own replication handler...