Nightingale is to monitoring and alerting what Grafana is to visualization.

🐠 Beats - Lightweight shippers for Elasticsearch & Logstash

Search UI for Elasticsearch

Site plugin for Elasticsearch to help understand and debug queries.

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID…