Solr is highly reliable, scalable, and fault-tolerant. It provides distributed indexing, replication, load-balanced querying and automated failover and recovery. Solr powers many of the largest internet sites around the world's search and navigation functions. Solr allows powerful matching capabilities, including phrases, wildcards and joins, grouping, and much more across any type of data. Solr has been proven on large scales all over the globe. Solr uses the same tools that you use to make application development easy. Solr ships with an intuitive, responsive administrative interface that makes it easy to manage your Solr instances. Want to know more about your instances? Solr publishes loads metric data via JMX. Solr is built on Apache Zookeeper, which has been proven to scale well. Solr is a complete solution for replication, distribution, rebalancing, and fault tolerance.