<p>I'm looking to find alternatives to <a href="http://lucene.apache.org/solr/" rel="noreferrer">Solr</a> from the Apache Software Foundation. </p>

<p>For those that don't know, Solr is an enterprise search server. A client application uses a web-services like interface to submit documents for indexing and also to perform search queries. Solr has other features built in like caching and replication. I believe it was originally started by CNet and then open-sourced. </p>

<p>I'm looking for other search servers out there that might be seen as the competition. </p>

[{'answer_id': 66994, 'author': 'Jahangir', 'author_id': 6927, 'author_profile': 'https://Stackoverflow.com/users/6927', 'pm_score': 0, 'selected': False, 'text': '<p><a href="http://omnifind.ibm.yahoo.net/" rel="nofollow noreferrer">IBM Omnifind Yahoo Edition</a> is an Enterprise search server which uses <a href="http://lucene.apache.org/" rel="nofollow noreferrer">Apache Lucene</a> for indexing. It is simple, easy to install and administer. It also has a built in Open Search API. It has multi-platform support and its Free!!</p>\n\n<p>This product was launched by IBM to compete with <a href="http://www.google.com/enterprise/mini/" rel="nofollow noreferrer">Google Mini</a> in the Enterprise Search market.</p>\n'}, {'answer_id': 67002, 'author': 'vzczc', 'author_id': 224, 'author_profile': 'https://Stackoverflow.com/users/224', 'pm_score': 1, 'selected': False, 'text': '<p><a href="http://www.fast.no/l3a.aspx?m=1031&amp;amid=12396" rel="nofollow noreferrer">Fast ESP</a> which Microsoft bought in January 2008</p>\n'}, {'answer_id': 75851, 'author': 'stephbu', 'author_id': 12702, 'author_profile': 'https://Stackoverflow.com/users/12702', 'pm_score': 2, 'selected': False, 'text': '<p>+1 for Lucene and FAST.  Lucene has also been ported to .NET if you\'re interested in extending it.</p>\n\n<p><a href="http://incubator.apache.org/lucene.net/" rel="nofollow noreferrer">http://incubator.apache.org/lucene.net/</a></p>\n'}, {'answer_id': 76382, 'author': 'Dirk Groeneveld', 'author_id': 13562, 'author_profile': 'https://Stackoverflow.com/users/13562', 'pm_score': 0, 'selected': False, 'text': '<p>In addition to the ones that people already mentioned, Microsoft has "<a href="http://www.microsoft.com/enterprisesearch/serverproducts/searchserver/default.aspx" rel="nofollow noreferrer">Microsoft Search Server</a>" and "<a href="http://www.microsoft.com/enterprisesearch/serverproducts/searchserverexpress/default.aspx" rel="nofollow noreferrer">Microsoft Search Server Express</a>". The latter is free, the former supports a larger corpus.</p>\n'}, {'answer_id': 77072, 'author': 'Adam Carden', 'author_id': 13856, 'author_profile': 'https://Stackoverflow.com/users/13856', 'pm_score': 6, 'selected': True, 'text': "<p>I wrote a long post about my experiences and features of all the engines I listed below but I scrapped it because formatting is a pita. But quite simply if you don't want to shell out money Solr/Lucene or Fast (now MSSE) is really about the best you can do.</p>\n<p>Excluded because I have no experience of this product:\nSeamark,</p>\n<h3>Price High to Low</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Mercado,</li>\n<li>Google Mini,</li>\n<li>Microsoft Search Server,</li>\n<li>Autonomy,</li>\n<li>Microsoft Search Server Express,</li>\n<li>Solr/Lucene</li>\n</ul>\n<h3>Speed Fast to Slow</h3>\n<ul>\n<li>Google Mini/Endeca,</li>\n<li>FredHopper,</li>\n<li>Autonomy,</li>\n<li>Solr/MSS/MSSE</li>\n</ul>\n<h3>Features High to Low</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Mercado,</li>\n<li>Solr,</li>\n<li>Autonomy,</li>\n<li>Lucene,</li>\n<li>MSS/MSSE,</li>\n<li>Google Mini</li>\n</ul>\n<h3>Extensibility High to Low</h3>\n<ul>\n<li>Solr/Lucene,</li>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Mercado,</li>\n<li>Autonomy,</li>\n<li>MSS/MSSE,</li>\n<li>Google Mini</li>\n</ul>\n<h3>Java API</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Autonomy,</li>\n<li>Solr/Lucene</li>\n</ul>\n<h3>.NET API</h3>\n<ul>\n<li>Endeca,</li>\n<li>Solr/Lucene,</li>\n<li>MSS/MSSE,</li>\n<li>Autonomy</li>\n</ul>\n<h3>XML API</h3>\n<ul>\n<li>FredHopper,</li>\n<li>Mercado,</li>\n<li>Solr/Lucene,</li>\n<li>Autonomy,</li>\n<li>Google Mini (limited)</li>\n</ul>\n<h3>Faceted Search</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Seamark,</li>\n<li>Solr</li>\n</ul>\n<h3>Natural Language Search</h3>\n<ul>\n<li>Endeca,</li>\n<li>Fred Hopper,</li>\n<li>Solr,</li>\n<li>Mercado,</li>\n<li>MSS/MSSE,</li>\n<li>Autonomy,</li>\n<li>Google Mini</li>\n</ul>\n<h3>Document Crawling</h3>\n<ul>\n<li>Endeca,</li>\n<li>Mercado,</li>\n<li>MSS/MSSE,</li>\n<li>Autonomy,</li>\n<li>Google Mini</li>\n</ul>\n<h3>ITL</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper</li>\n</ul>\n<h3>Merchandizing/Content Spotlighting</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Mercado</li>\n</ul>\n<h3>Distributed Search</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Mercado,</li>\n<li>Solr/Lucene,</li>\n<li>Autonomy,</li>\n<li>Google Mini</li>\n</ul>\n<h3>Analytics</h3>\n<ul>\n<li>Endeca</li>\n</ul>\n<h3>Platform x86 Windows</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Mercado,</li>\n<li>MSS/MSSE,</li>\n<li>Solr/Lucene,</li>\n<li>Autonomy</li>\n</ul>\n<h3>Platform x64 Windows</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Solr/Lucene</li>\n</ul>\n<h3>Platform x86 Unix Variants</h3>\n<ul>\n<li>Endeca,</li>\n<li>FredHopper,</li>\n<li>Mercado,</li>\n<li>Solr/Lucene,</li>\n<li>Autonomy</li>\n</ul>\n<h3>Platform x64 Unix Variants</h3>\n<ul>\n<li>Endeca,</li>\n<li>Solr/Lucene</li>\n</ul>\n<h3>Other</h3>\n<ul>\n<li>Google Mini</li>\n</ul>\n"}, {'answer_id': 252430, 'author': 'ejunker', 'author_id': 796, 'author_profile': 'https://Stackoverflow.com/users/796', 'pm_score': 2, 'selected': False, 'text': '<p>Here are some more open source search engines</p>\n\n<ul>\n<li><a href="http://www.sphinxsearch.com/" rel="nofollow noreferrer">Sphinx</a></li>\n<li><a href="http://xapian.org/" rel="nofollow noreferrer">Xapian</a></li>\n<li><a href="http://framework.zend.com/manual/en/zend.search.lucene.html" rel="nofollow noreferrer">Zend_Search_Lucene</a></li>\n</ul>\n\n<p>Here are some search related tools</p>\n\n<ul>\n<li><p><a href="http://code.google.com/p/forage/" rel="nofollow noreferrer">Forage</a> The Forage PHP5 library is an easy to use interface to \nmultiple back end search libraries. It provides a common interface while \nsupporting unique features in each library by allowing back-ends to support \nspecific features or not.</p></li>\n<li><p><a href="http://code.google.com/p/marjory/" rel="nofollow noreferrer">Marjory</a> Marjory is a webservice for indexing and searching for \ndocuments, utilizing a full-text search engine.</p></li>\n</ul>\n'}, {'answer_id': 840829, 'author': 'Community', 'author_id': -1, 'author_profile': 'https://Stackoverflow.com/users/-1', 'pm_score': 1, 'selected': False, 'text': "<p>We are using Fast today. It's has many great features but we don't use them. It's expensive. We are in search for an alternate solution as well.</p>\n"}, {'answer_id': 955609, 'author': 'Community', 'author_id': -1, 'author_profile': 'https://Stackoverflow.com/users/-1', 'pm_score': 1, 'selected': False, 'text': '<p>What about FACT-Finder? e.g. www.eddiebauer.de is using the search and navigation solution and more than 500 other european webshops. Highly error tolerant...</p>\n'}, {'answer_id': 2836421, 'author': 'banncee', 'author_id': 340456, 'author_profile': 'https://Stackoverflow.com/users/340456', 'pm_score': 2, 'selected': False, 'text': "<p>I've worked peripherally with Endeca, and it seems like a feature packed, fast engine.</p>\n\n<p>They seem especially well suited towards eCommerce site driving, with special tools for customizing content for up-sells and cross-sells.  I also think they are going to try and move into the BI space, so it should be an interesting combination of the two capabilities if they pull it off seamlessly.</p>\n"}, {'answer_id': 3522924, 'author': 'Drew Volpe', 'author_id': 151356, 'author_profile': 'https://Stackoverflow.com/users/151356', 'pm_score': 2, 'selected': False, 'text': '<p>I used to work at Endeca so take this for what it is.  I won\'t comment on competitors, but I do really believe it\'s a significantly better product than anything else out there.</p>\n\n<p>Solr provides basic faceted search, which is "good enough" for many applications.  In a lot of ways, it\'s a low-end Endeca. </p>\n\n<p>Some of the things Endeca would give you over Solr:</p>\n\n<ul>\n<li>better language analysis (stemming, etc.)</li>\n<li>Joins and the ability to do many-to-many filtering</li>\n<li>support for querying via XQuery</li>\n<li>better support for managing dimensions / facets</li>\n<li>much better performance (both for queries and pushing data in)</li>\n<li>crawlers and data integration tools</li>\n<li>better admin tools</li>\n</ul>\n\n<p>And, obviously, services and support.</p>\n\n<p>That said, it\'s not cheap, so if you don\'t have a budget for it, Solr isn\'t a bad option.  </p>\n'}]
['https://Stackoverflow.com/questions/66922', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/543/']