Read e-book online Apache Solr High Performance PDF

By Surendra Mohan

In establishing Apache Solr, you have to determine it truly is reaching optimal seek effects with greatest potency. This publication exhibits you simply find out how to in achieving that with a finished instructional together with troubleshooting.

About This Book

  • Achieve excessive rankings via boosting question time and index time, enforcing improve queries and capabilities utilizing the Dismax question parser and formulae.
  • Set up and use SolrCloud for dispensed 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 publication is perfect for Apache Solr builders who are looking to study diverse concepts to optimize Solr's functionality with utmost potency, in addition to successfully troubleshooting the issues that typically 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 accordance with ratings, the DisMax question parser, and serve as queries.
  • Explore functionality metrics in addition to imposing diverse Solr caching like record, question outcome, clear out, and entire end result 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 homophones, or filtering searches at the foundation of particular key words.
  • Troubleshoot the typical difficulties like corrupt and locked indexes, reminiscence, dear rubbish assortment, and limitless loop exception whilst utilizing a number of server atmosphere efficiently
  • Set up, configure, and install quite a few 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 net. in spite of the fact that, easily constructing Apache Solr isn't adequate to make sure the luck of your internet product. to maximise potency, you should use innovations to spice up Solr functionality which will go back correct effects speedier. you want to enforce strong options that concentrate on optimizing the functionality of your Solr cases and in addition troubleshoot matters which are vulnerable to come up whereas retaining Solr.

Apache Solr excessive functionality is a realistic advisor that can assist you discover and take complete benefit of the powerful nature of Apache Solr that allows you to in attaining optimized Solr circumstances, in particular by way of performance.

You will examine every little thing you must recognize to be able to in attaining a excessive appearing Solr example or set of situations, in addition to how you can troubleshoot the typical difficulties you're susceptible to face whereas operating with unmarried or a number of Solr servers.

This e-book will give you an advent by means of explaining the must haves of Apache Solr and fitting it, whereas additionally integrating it with the necessary extra parts, and progressively progresses into positive aspects that make Solr versatile sufficient to accomplish excessive functionality rankings in a variety of situations. relocating ahead, the booklet will conceal a number of transparent and hugely functional suggestions that can assist you extra optimize your Solr cases' functionality either on unmarried in addition to a number of servers, and troubleshoot universal difficulties which are at risk of come up whereas utilizing your Solr example. by means of the top of the e-book additionally, you will tips on how to manage, configure, and set up ZooKeeper in addition to studying extra approximately different purposes of ZooKeeper.

You also will how you can deal with information in a number of server environments, searches according to particular geographical co-ordinates, assorted caching innovations, and diverse algorithms and formulae that permit higher functionality; and lots of more.

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Example text

To handle this situation and make the longer queries execute faster, you need to explore and use text analysis techniques such as Shingle or Common-grams. Boost queries Apart from the other boosting techniques we discussed earlier, boost queries are another technique that impact the score of the document to a major extent. Implementing boost queries involves specifying multiple additional queries using the bq parameter or a set of parameters of the dismax query parser. Just like the autophrase boost, this parameter(s) gets added to the user's query in a very similar fashion.

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Let me remind you, this doesn't include the time taken to stream back the response. Index-time: It is the duration (in milliseconds) taken by the Solr instance to crawl the contents of the site and create their associated indices. Index-time boosting During index-time, you have the feasibility to boost a specific document either at the document level or at the field level. In document-level boosting, each field is boosted based on a value. Since it is rarely used and is highly uncommon due to the fact that it is not as flexible compared to query-time, we will discuss query-time in detail.

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