apache solr vs elasticsearch - Wikitechy https://www.wikitechy.com/interview-questions/tag/apache-solr-vs-elasticsearch/ Interview Questions Tue, 14 Sep 2021 11:12:09 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png apache solr vs elasticsearch - Wikitechy https://www.wikitechy.com/interview-questions/tag/apache-solr-vs-elasticsearch/ 32 32 What is Indexing and search full_text arabic field using apache solr ? https://www.wikitechy.com/interview-questions/apache-solr/what-is-indexing-and-search-full_text-arabic-field-using-apache-solr/ https://www.wikitechy.com/interview-questions/apache-solr/what-is-indexing-and-search-full_text-arabic-field-using-apache-solr/#respond Mon, 12 Jul 2021 15:45:41 +0000 https://www.wikitechy.com/interview-questions/?p=248

Arabic field using apache solr:

  • Apache Solr has an Arabic analysis.
  • If you open the default schema.xml file which comes with Solr, you will see an example of Arabic fieldtype.
  • You can use CopyField to copy your fields to the Arabic field type.
  • You have to reindex your content again to get the preferred results.
  • If each document consists of 3 fields, two fields are integers then the third field is Arabic text with diacritics, the user may use words with or without diacritics or else some letters have diacritics and others without diacritics, you can use schema.xml which helps in such situation.
<?xml version="1.0" encoding="UTF-8" ?>

<schema name="quran" version="1.5">

<fields>
    <field name="_version_" type="long" indexed="true" stored="true"/>
    <field name="_id" type="long" indexed="true" stored="true" />
    <field name="sura_number" type="int" indexed="true" stored="true" />
    <field name="verse_number" type="int" indexed="true" stored="true" />
    <field name="verse_text" type="text_ar" indexed="true" stored="true"/>
 </fields>

<types>
    <fieldType name="string" class="solr.StrField" sortMissingLast="true" />
    <fieldType name="boolean" class="solr.BoolField" sortMissingLast="true"/>

    <fieldType name="int" class="solr.TrieIntField" precisionStep="0" positionIncrementGap="0"/>
    <fieldType name="float" class="solr.TrieFloatField" precisionStep="0" positionIncrementGap="0"/>
    <fieldType name="long" class="solr.TrieLongField" precisionStep="0" positionIncrementGap="0"/>
    <fieldType name="double" class="solr.TrieDoubleField" precisionStep="0" positionIncrementGap="0"/>

    <fieldType name="date" class="solr.TrieDateField" precisionStep="0" positionIncrementGap="0"/>

    <fieldType name="location" class="solr.LatLonType" subFieldSuffix="_coordinate"/>
    <dynamicField name="*_coordinate"  type="tdouble" indexed="true"  stored="false"/>

   <!--  Arabic  -->
   <fieldType name="text_ar" class="solr.TextField" positionIncrementGap="100">
   <analyzer>
   <tokenizer class="solr.StandardTokenizerFactory"/>
   <!--  normalizes ﻯ to ﻱ, etc  -->
   <filter class="solr.ArabicNormalizationFilterFactory"/>
   <filter class="solr.ArabicStemFilterFactory"/>
   </analyzer>
   </fieldType>

</types>

</schema>
]]> https://www.wikitechy.com/interview-questions/apache-solr/what-is-indexing-and-search-full_text-arabic-field-using-apache-solr/feed/ 0 What is the difference between Apache Solr and ElasticSearch ? https://www.wikitechy.com/interview-questions/apache-solr/what-is-the-difference-between-apache-solr-and-elasticsearch/ https://www.wikitechy.com/interview-questions/apache-solr/what-is-the-difference-between-apache-solr-and-elasticsearch/#respond Mon, 12 Jul 2021 11:53:17 +0000 https://www.wikitechy.com/interview-questions/?p=232

Differences between Apache Solr and ElasticSearch:

Feature Solr 6.2.1 ElasticSearch 5.0
Format XML, CSV,
JSON		 JSON
HTTP REST API ✔ ✔
Binary API ✔ SolrJ ✔ TransportClient, Thrift (through a plugin)
JMX support ✔ ☓ ES specific stats are
exposed through the REST API
Official client libraries Java Java, Groovy, PHP, Ruby, Perl, Python, .NET,
Javascript Official list of clients
Community client libraries PHP, Ruby, Perl, Scala, Python, .NET,
Javascript, Go, Erlang, Clojure		 Clojure, Cold Fusion, Erlang, Go, Groovy, Haskell, Java,
JavaScript, .NET, OCaml, Perl, PHP, Python, R,
Ruby, Scala, Smalltalk, Vert.x Complete list
3rd-party product integration
(open-source)		 Drupal, Magento, Django, ColdFusion,
Wordpress, OpenCMS, Plone, Typo3,
ez Publish, Symfony2, Riak (via Yokozuna)		 Drupal, Django, Symfony2,
Wordpress, CouchBase
3rd-party product integration
(commercial)		 DataStax Enterprise Search,
Cloudera Search, Hortonworks Data
Platform, MapR		 SearchBlox, Hortonworks Data Platform,
MapR etc Complete list
Output JSON, XML, PHP, Python, Ruby, CSV,
Velocity, XSLT, native Java		 JSON, XML/HTML (via plugin)
query top
elasticsearch dashboard final
]]> https://www.wikitechy.com/interview-questions/apache-solr/what-is-the-difference-between-apache-solr-and-elasticsearch/feed/ 0 What is the difference between Apache Solr and MongoDB ? https://www.wikitechy.com/interview-questions/apache-solr/what-is-the-difference-between-apache-solr-and-mongodb/ https://www.wikitechy.com/interview-questions/apache-solr/what-is-the-difference-between-apache-solr-and-mongodb/#respond Mon, 12 Jul 2021 11:39:50 +0000 https://www.wikitechy.com/interview-questions/?p=228 Difference between Apache Solr and MongoDB:
  • Here,Some of the examples of document oriented database is MongoDB, Cassandra, and CouchBD.
Name Apache Solr MongoDB
Description A widely used enterprise
search engine based on Apache Lucene.		 One of the most popular document stores
Developer Apache Software Foundation MongoDB, Inc.
Cloud-based No No
Server operating systems All OS with a Java VM
and a servlet container		 Linux OS X Solaris Windows
Data scheme Yes schema-free
Implementation language Java C++
Secondary indexes Yes Yes
SQL No No
]]> https://www.wikitechy.com/interview-questions/apache-solr/what-is-the-difference-between-apache-solr-and-mongodb/feed/ 0 What is the most ideal approach to use Apache Solr for relational JOIN ? https://www.wikitechy.com/interview-questions/apache-solr/what-is-the-most-ideal-approach-to-use-apache-solr-for-relational-join/ https://www.wikitechy.com/interview-questions/apache-solr/what-is-the-most-ideal-approach-to-use-apache-solr-for-relational-join/#respond Mon, 12 Jul 2021 09:28:47 +0000 https://www.wikitechy.com/interview-questions/?p=224

Apache Solr for relational JOIN:

  • Run a single-use script that do the joins on the SOLR index (file) to replace the author_id and author_name, or include the field if you need both. Updating 10,000,000+ documents will get a while, however it is definitely achievable.
  • After that you can have new documents indexed with both fields, doing the JOIN one at a time.
  • In common, SOLR works with entirely denormalized information.
  • If it is more than just authors’ names, you could still denormalize the information, repeating your documents for every one of the related author documents.
  • Another technique is SOLR 4 has “JOIN” ability.
  • You’d first need to at least contain a pipeline wherever author information is indexed into SOLR in real-time.
  • Utilize Elastic Search to simply deal with the complex SOLR queries involving JOIN-like operations.
]]> https://www.wikitechy.com/interview-questions/apache-solr/what-is-the-most-ideal-approach-to-use-apache-solr-for-relational-join/feed/ 0 What are the features of Apache Solr ? https://www.wikitechy.com/interview-questions/apache-solr/what-are-the-features-of-apache-solr/ https://www.wikitechy.com/interview-questions/apache-solr/what-are-the-features-of-apache-solr/#respond Mon, 12 Jul 2021 09:01:12 +0000 https://www.wikitechy.com/interview-questions/?p=218

Features of Apache Solr

Advanced Full-Text Search Capabilities:

  • Apache Solr contains powerful capabilities such as phrases, wildcards, grouping, joins and much more across several data type.

Optimized for High Volume Traffic:

  • It is proven at very large scales throughout the world.

Standards Based Open Interfaces – XML, JSON and HTTP:

  • Solr uses the tools that use to make application building a snap.

Comprehensive Administration Interfaces:

  • It ships with a built-in, responsive administrative UI to build it simple and to manage the Solr instances.

Ease Monitoring:

  • It publishes many of metric information via JMX.

Highly Scalable and Fault Tolerant:

  • Built on the battle-tested Apache Zookeeper, It makes ease to scale up and down.
  • It bakes in distribution, replication, and rebalancing as well as fault tolerance out of the box.

Flexible and Adaptable with easy configuration:

  • Solr’s is planned to adapt your needs as simplifying configuration.

Near Real-Time Indexing:

  • Apache Solr takes a benefit of Lucene’s Near Real-Time Indexing capabilities to ensure you to see your content when you would like to notice it
]]> https://www.wikitechy.com/interview-questions/apache-solr/what-are-the-features-of-apache-solr/feed/ 0