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class="search-icon" tabindex="0"></span><input type="search" id="search_input_react" placeholder="Loading..." aria-label="Search" class="navbar__search-input search-bar" disabled=""></div></div></div></div><div role="presentation" class="navbar-sidebar__backdrop"></div></nav><div id="__docusaurus_skipToContent_fallback" class="main-wrapper mainWrapper_z2l0 docsWrapper_BCFX"><button aria-label="Scroll back to top" class="clean-btn theme-back-to-top-button backToTopButton_sjWU" type="button"></button><div class="docPage__5DB"><main class="docMainContainer_gTbr docMainContainerEnhanced_Uz_u"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><div class="theme-doc-markdown markdown"><header><h1>Apache Druid vs Elasticsearch</h1></header><p>We are not experts on search systems, if anything is incorrect about our portrayal, please let us know on the mailing list or via some other means.</p><p>Elasticsearch is a search system based on Apache Lucene. It provides full text search for schema-free documents |
| and provides access to raw event level data. Elasticsearch is increasingly adding more support for analytics and aggregations. |
| <a href="https://groups.google.com/forum/#!msg/druid-development/nlpwTHNclj8/sOuWlKOzPpYJ" target="_blank" rel="noopener noreferrer">Some members of the community</a> have pointed out |
| the resource requirements for data ingestion and aggregation in Elasticsearch is much higher than those of Druid.</p><p>Elasticsearch also does not support data summarization/roll-up at ingestion time, which can compact the data that needs to be |
| stored up to 100x with real-world data sets. This leads to Elasticsearch having greater storage requirements.</p><p>Druid focuses on OLAP work flows. Druid is optimized for high performance (fast aggregation and ingestion) at low cost, |
| and supports a wide range of analytic operations. Druid has some basic search support for structured event data, but does not support |
| full text search. Druid also does not support completely unstructured data. Measures must be defined in a Druid schema such that |
| summarization/roll-up can be done.</p></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"></nav></div></div></div></div></main></div></div><footer class="footer"><div class="container container-fluid"><div class="footer__bottom text--center"><div class="margin-bottom--sm"><img src="/img/favicon.png" class="themedImage_ToTc themedImage--light_HNdA footer__logo"><img src="/img/favicon.png" class="themedImage_ToTc themedImage--dark_i4oU footer__logo"></div><div class="footer__copyright">Copyright © 2023 Apache Software Foundation. Except where otherwise noted, licensed under CC BY-SA 4.0. Apache Druid, Druid, and the Druid logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</div></div></div></footer></div> |
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