Apache Solr over elasticsearch:
- Real Time, Massive Read, and Write Scalability:
- Apache Solr supports large-scale, search, distributed indexing, and aggregation or statistics operations, enabling to handle applications large and small.
- SQL and Streaming Expressions/Aggregations.
- Security Out of the Box:
- Using Solr, security is built in, integrating with systems such as kerberos, SSL, and LDAP to not only secure the system, also secure the content inside of it.
- Graph Support:
- Graph operations over the data allow query and work with difficult relationships between data and then output to formats like GraphML.
- Solr Plays Nice With Big Data Toolchains
- Kibana and Logstash Both Work with Solr
