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Download e-book for iPad: Apache Solr High Performance by Surendra Mohan

By Surendra Mohan

ISBN-10: 1306538394

ISBN-13: 9781306538398

ISBN-10: 1782164820

ISBN-13: 9781782164821

ISBN-10: 1782164839

ISBN-13: 9781782164838

In constructing Apache Solr, you want to be certain it really is attaining optimal seek effects with greatest potency. This e-book indicates you simply tips to in attaining that with a entire educational together with troubleshooting.

About This Book

  • Achieve excessive rankings by means of boosting question time and index time, imposing strengthen queries and capabilities utilizing the Dismax question parser and formulae.
  • Set up and use SolrCloud for allotted indexing and looking, and enforce dispensed seek utilizing Shards
  • Use GeoSpatial seek, dealing with homophones, and ignoring indexed phrases from being listed and searched

Who This ebook Is For

This ebook is perfect for Apache Solr builders who are looking to study diverse options to optimize Solr's functionality with utmost potency, in addition to successfully troubleshooting the issues that sometimes happen whereas attempting to enhance functionality. Familiarity with seek servers and database querying is expected.

What you are going to Learn

  • Boost your seek in response to ratings, the DisMax question parser, and serve as queries.
  • Explore functionality metrics besides imposing various Solr caching like record, question end result, filter out, and entire consequence web page caching.
  • Index and seek throughout shards and close to real-time searching.
  • Get to grips with extra functionality optimization actions like fetching records just like those queried, looking out homophones, or filtering searches at the foundation of particular key words.
  • Troubleshoot the typical difficulties like corrupt and locked indexes, reminiscence, pricey rubbish assortment, and countless loop exception whilst utilizing a number of server setting efficiently
  • Set up, configure, and installation a number of purposes of ZooKeeper to optimize Solr's performance

In Detail

Apache Solr is likely one of the preferred open resource seek servers on hand on the internet. in spite of the fact that, easily developing Apache Solr isn't sufficient to make sure the luck of your net product. to maximise potency, you can use concepts to spice up Solr functionality so one can go back suitable effects speedier. you must enforce strong options that target optimizing the functionality of your Solr circumstances and in addition troubleshoot concerns which are vulnerable to come up whereas retaining Solr.

Apache Solr excessive functionality is a pragmatic advisor to help you discover and take complete good thing about the strong nature of Apache Solr so that it will in achieving optimized Solr situations, in particular by way of performance.

You will research every thing you want to comprehend for you to in attaining a excessive acting Solr example or set of situations, in addition to how one can troubleshoot the typical difficulties you're liable to face whereas operating with unmarried or a number of Solr servers.

This e-book will give you an advent via explaining the necessities of Apache Solr and fitting it, whereas additionally integrating it with the mandatory extra parts, and steadily progresses into gains that make Solr versatile adequate to accomplish excessive functionality rankings in a variety of situations. relocating ahead, the publication will hide a number of transparent and hugely useful strategies to help you additional optimize your Solr cases' functionality either on unmarried in addition to a number of servers, and find out how to troubleshoot universal difficulties which are liable to come up whereas utilizing your Solr example. through the top of the e-book additionally, you will the way to arrange, configure, and installation ZooKeeper in addition to studying extra approximately different functions of ZooKeeper.

You also will tips on how to deal with info in a number of server environments, searches according to particular geographical co-ordinates, varied caching suggestions, and numerous algorithms and formulae that let greater functionality; and plenty of more.

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Example text

If a lies between min and max (inclusive of the min and max values), then output is returned. In case ops (the optional parameter) is passed, it is returned when a doesn't lie between min and max inclusive; else, a itself is returned. scale (a, minTarget, maxTarget): This function returns a such that it is scaled to be between minTarget and maxTarget. recip (a,b,x,c): It is a macro for div(x, linear(a,b,c)). The ord() and rord() functions As mentioned earlier in the Field reference section of this chapter, ord(fieldRef) implies for references to the text fields of a function query.

To confirm, type http://localhost:8080/solr/admin/ and hit the Enter key on the keyboard. You should be able to see Apache Solr's dashboard. Summary In this chapter, we have learned about the prerequisites necessary to run Apache Solr successfully and how to install and configure XAMPP, Tomcat, the Solr server, and the Solr client. In the next chapter, we will learn the different ways to boost our search using query parsers and various robust function queries such as field references, function references, and function query boosting based on different criteria.

0. The primary objective behind implementing a score is to narrow down the field list to a smaller set by mapping the fields together and then inject the smaller set to the search engine. Doing so helps the search engine understand the request better and serve the requester in a more appropriate way. To understand the preceding objective better, let us assume we have an event that possesses more than 50 distinct fields. Of course, it would be quite confusing for the search engine to consider all the field values and render the search results, which results in an inappropriate result set.

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Apache Solr High Performance by Surendra Mohan

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