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Mastering Elasticsearch - Second Edition

You're reading from   Mastering Elasticsearch - Second Edition Further your knowledge of the Elasticsearch server by learning more about its internals, querying, and data handling

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Product type Paperback
Published in Feb 2015
Publisher
ISBN-13 9781783553792
Length 434 pages
Edition 2nd Edition
Languages
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Toc

Table of Contents (11) Chapters Close

Preface 1. Introduction to Elasticsearch FREE CHAPTER 2. Power User Query DSL 3. Not Only Full Text Search 4. Improving the User Search Experience 5. The Index Distribution Architecture 6. Low-level Index Control 7. Elasticsearch Administration 8. Improving Performance 9. Developing Elasticsearch Plugins Index

The story

As we said in the beginning of this chapter, we treat the book you are holding in your hands as a continuation of the Elasticsearch Server Second Edition book. Because of this, we would like to continue the story that we've used in that book. In general, we assume that we are implementing and running an online book store, as simple as that.

The mappings for our library index look like the following:

{
  "book" : {
    "_index" : { 
      "enabled" : true 
    },
    "_id" : {
      "index": "not_analyzed", 
      "store" : "yes"
    },
    "properties" : {
      "author" : {
        "type" : "string"
      },
      "characters" : {
        "type" : "string"
      },
      "copies" : {
        "type" : "long",
        "ignore_malformed" : false
      },
      "otitle" : {
        "type" : "string"
      },
      "tags" : {
        "type" : "string",
        "index" : "not_analyzed"
      },
      "title" : {
        "type" : "string"
      },
      "year" : {
        "type" : "long",
        "ignore_malformed" : false
      },
      "available" : {
        "type" : "boolean"
      }, 
      "review" : {
        "type" : "nested",
        "properties" : {
          "nickname" : {
            "type" : "string"
          },
          "text" : {
            "type" : "string"
          },
          "stars" : {
            "type" : "integer"
          }
        }
      }
    }
  }
}

The mappings can be found in the library.json file provided with the book.

The data that we will use is provided with the book in the books.json file. The example documents from that file look like the following:

{ "index": {"_index": "library", "_type": "book", "_id": "1"}}
{ "title": "All Quiet on the Western Front","otitle": "Im Westen nichts  
  Neues","author": "Erich Maria Remarque","year": 1929,"characters": ["Paul  
  Bäumer", "Albert Kropp", "Haie Westhus", "Fredrich Müller", "Stanislaus  
  Katczinsky", "Tjaden"],"tags": ["novel"],"copies": 1, "available": true,  
  "section" : 3}
{ "index": {"_index": "library", "_type": "book", "_id": "2"}}
{ "title": "Catch-22","author": "Joseph Heller","year": 1961,"characters":  
  ["John Yossarian", "Captain Aardvark", "Chaplain Tappman", "Colonel  
  Cathcart", "Doctor Daneeka"],"tags": ["novel"],"copies": 6, "available" :  
  false, "section" : 1}
{ "index": {"_index": "library", "_type": "book", "_id": "3"}}
{ "title": "The Complete Sherlock Holmes","author": "Arthur Conan  
  Doyle","year": 1936,"characters": ["Sherlock Holmes","Dr. Watson", "G.  
  Lestrade"],"tags": [],"copies": 0, "available" : false, "section" : 12}
{ "index": {"_index": "library", "_type": "book", "_id": "4"}}
{ "title": "Crime and Punishment","otitle": "Преступлéние и  
  наказáние","author": "Fyodor Dostoevsky","year": 1886,"characters":  
  ["Raskolnikov", "Sofia Semyonovna Marmeladova"],"tags": [],"copies": 0,  
  "available" : true}

Tip

Downloading the example code

You can download the example code files for all Packt books you have purchased from your account at http://www.packtpub.com. If you purchased this book elsewhere, you can visit http://www.packtpub.com/support and register to have the files e-mailed directly to you.

To create the index using the provided mappings and to index the data, we would run the following commands:

curl -XPOST 'localhost:9200/library'
curl -XPUT 'localhost:9200/library/book/_mapping' -d @library.json
curl -s -XPOST 'localhost:9200/_bulk' --data-binary @books.json
You have been reading a chapter from
Mastering Elasticsearch - Second Edition - Second Edition
Published in: Feb 2015
Publisher:
ISBN-13: 9781783553792
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