solr vs lucene - Wikitechy https://www.wikitechy.com/interview-questions/tag/solr-vs-lucene/ Interview Questions Tue, 14 Sep 2021 10:41:57 +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 solr vs lucene - Wikitechy https://www.wikitechy.com/interview-questions/tag/solr-vs-lucene/ 32 32 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 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.
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