Apache Solr 3.1 Cookbook by Rafal Kuc

By Rafal Kuc

Over a hundred recipes to find new how one can paintings with Apache's firm seek Server
• increase the best way you're employed with Apache Solr to make your seek engine swifter and extra effective
• care for functionality, setup, and configuration difficulties in no time
• observe little-known Solr functionalities and create your personal modules to customise Solr to your company's needs
• a part of Packt's Cookbook sequence; each one bankruptcy covers a unique point of operating with Solr

In Detail

Apache Solr is a quick, scalable, smooth, open resource, and easy-to-use seek engine. It permits you to improve a certified seek engine to your ecommerce website, net program, or again place of work software program. developing Solr is straightforward, yet configuring it to get the main from your web site is the tricky bit.

The Solr 3.1 Cookbook will make your daily paintings more straightforward by utilizing real-life examples that enable you to care for the most typical difficulties that could come up whereas utilizing the Apache Solr seek engine. Why waste some time looking the web for ideas in the event you could have all of the solutions in a single position?

This cookbook will enable you to get the main from your seek engine. every one bankruptcy covers a distinct point of operating with Solr from studying your textual content facts via querying, functionality development, and constructing your individual modules. the sensible recipes can assist you to fast remedy universal issues of info research, aid you use faceting to gather info and to hurry up the functionality of Solr. you are going to find out about functionalities that the majority novices are ignorant of, similar to sorting effects through a functionality worth, highlighting matched phrases, and computing information to make your paintings with Solr effortless and tension loose .

This functional advisor indicates you ways to get the main out of Apache Solr 3.1 with recipes that assist you to enhance your seek engine's functionality, study info quick and successfully, and customise the quest server together with your personal modules.

What you are going to study from this book
• Index info in several codecs and forms
• Use the Solr management panel to find the main often looked for information
• how you can use diversified facts grouping techniques
• increase your Solr deployment performance
• Create and use your individual Apache Solr modules
• Configure your cache to cater for adjustments on your data
• Import info utilizing the knowledge Import Handler and delta query
• question Solr to look for words, kind effects via various fields, and seek geographical points
• Create new purposes that use Solr
• decrease the dimensions of your index for speedier searching

Approach

This e-book is a part of Packt's Cookbook sequence; each one bankruptcy seems to be at a special element of operating with Apache Solr. The recipes take care of universal difficulties of operating with Solr by utilizing easy-to-understand, real-life examples. The publication isn't really by any means an entire Apache Solr reference and also you may still see it as a assisting hand while issues get tough in your trip with Apache Solr.

Who this ebook is written for

Developers who're operating with Apache Solr and want to understand how to strive against universal difficulties will locate this e-book of significant use. wisdom of Apache Lucene will be an advantage yet isn't required.

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Extra info for Apache Solr 3.1 Cookbook

Sample text

Our query result window tells Solr to always gather two hundred documents. Then when we will need some more documents that follow the first hundred they will be fetched from cache and therefore we will be saving our resources. The size of the query result window is mostly dependent on the application and how it is using Solr. If you tend to do multiple paging, you should consider using a higher query result window value. 26 Chapter 1 You should remember that the size of caches shown in this task is not final and you should adapt them to your application needs.

So if you have a handler named / simple in the core named example, it will be available under the context /solr/example/ simple, not /solr/simple. When you know that, you'll be able to know where to point your applications that use Solr and a multicore deployment. 22 Chapter 1 There is one more thing—you need to remember that every core has a separate index. That means that you can't combine results from different cores, at least not automatically. For example, you can't automatically get results with a combination of documents in English and German; you must do it by yourself or choose a different architecture for your Solr deployment.

After downloading the appropriate version, compiling and installing it, we can begin using this tool. How to do it... IndexSorter is an index post processing tool. This means that it should be used after data is indexed. Let's assume that we have our data indexed. xml file): 31 Apache Solr Configuration Let's assume that we have a requirement that we need to show our data sorted by the value field (the field contains float values, the higher the value the more important the document is), but our index is so big, that a single query is taking more time than a client will be willing to wait for the results.

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