Solr vs Elasticsearch

Having participated in projects where Solr is the component chosen as a search engine I've found myself most of the times annoyed about the lack of realtime indexing and performance degradation as indexes grow. Solr works great on environments where indexes aren't generated with much frequency but as the web evolves and new contents are generated on a continuous way the demand of indexing+querying simultaneously grows. The following article shows elasticsearch as one alternative to this scenario: Realtime Search: Solr vs Elasticsearch


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