Mastering elasticsearch : further your knowledge of the elasticsearch server by learning more about its internals, querying, and data handling /: further your knowledge of the elasticsearch server by learning more about its internals, querying, and data handling. (2015)

• Record Type: Book
• Further Information: Note: Rafał Kuc, Marek Rogozinski ; commissioning editor Akram Hussain ; acquisition editor Rebecca Youe ; copy editors Stuti Srivastava, Sameen Siddiqui.
• Authors: Kuc, Rafał; Rogozinski, Marek
• Editors: Hussain, Akram; Youe, Rebecca; Srivastava, Stuti; Siddiqui, Sameen
• Contents: Cover; Copyright; Credits; About the Author; Acknowledgments; About the Author; Acknowledgments; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Introduction to Elasticsearch; Introducing Apache Lucene; Getting familiar with Lucene; Overall architecture; Getting deeper into Lucene index; Analyzing your data; Indexing and querying; Lucene query language; Understanding the basics; Querying fields; Term modifiers; Handling special characters; Introducing Elasticsearch; Basic concepts; Index; Document; Type; Mapping; Node; Cluster; Shard; Replica. Key concepts behind Elasticsearch architectureWorkings of Elasticsearch; The startup process; Failure detection; Communicating with Elasticsearch; Indexing data; Querying data; The story; Summary; Chapter 2: Power User Query DSL; Default Apache Lucene scoring explained; When a document is matched; TF/IDF scoring formula; Lucene conceptual scoring formula; Lucene practical scoring formula; Elasticsearch point of view; An example; Query rewrite explained; Prefix query as an example ; Getting back to Apache Lucene; Query rewrite properties; Query templates; Introducing query templates. Templates as stringsThe Mustache template engine; Conditional expressions; Loops; Default values; Storing templates in files; Handling filters and why it matters; Filters and query relevance; How filters work; Bool or and/or/not filters; Performance considerations; Post filtering and filtered query; Choosing the right filtering method ; Choosing the right query for the job; Query categorization; Basic queries; Compound queries; Not analyzed queries; Full text search queries; Pattern queries; Similarity supporting queries; Score altering queries; Position aware queries. Structure aware queries The use cases; Example data; Basic queries use cases; Compound queries use cases; Not analyzed queries use cases; Full text search queries use cases; Pattern queries use cases; Similarity supporting queries use cases; Score altering queries use cases; Pattern queries use cases; Structure aware queries use cases; Summary; Chapter 3: Not Only Full Text Search; Query rescoring; What is query rescoring?; An example query; Structure of the rescore query; Rescore parameters; Choosing the scoring mode; To sum up; Controlling multimatching; Multimatch types. Best fields matchingCross fields matching; Most fields matching; Phrase matching; Phrase with prefixes matching; Significant terms aggregation; An example; Choosing significant terms; Multiple values analysis; Significant terms aggregation and full text search fields; Additional configuration options; Controlling the number of returned buckets; Background set filtering; Minimum document count; Execution hint; More options; There are limits; Memory consumption; Shouldn't be used as top level aggregation; Counts are approximated; Floating point fields are not allowed; Documents grouping.
• Publisher Details: Birmingham, England Mumbai [India] : Packt Publishing
• Publication Date: 2015
• Copyright Date: 2015
• Extent: 1 online resource (434 pages), illustrations
• Subjects: 005.1; COMPUTERS -- Web -- Search Engines; Application software -- Development; Application software -- Development; Application software porting; Application software; Client/server computing -- Software; Application software -- Development; COMPUTERS -- Programming -- Open Source; Electronic books
• Languages: English
• ISBNs: 9781783553808; 1783553804; 1783553790; 9781783553792
• Related ISBNs: 9781783553792
• Notes: Note: Online resource; title from PDF title page (ebrary, viewed March 16, 2015).
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.