1. Nginx http server.
https://www.nginx.org
2. Redis key-value store.
http://redis.io
3. Varnish http cache.
https://www.varnish-cache.org
4. Albrecht, C., et al.: Janus: optimal flash provisioning for cloud storage workloads. In: Proceedings of the USENIX ATC 2013, pp. 91–102 (2013)
5. Atikoglu, B., Xu, Y., Frachtenberg, E., Jiang, S., Paleczny, M.: Workload analysis of a large-scale key-value store. In: Proceedings of the SIGMETRICS 2012, pp. 53–64 (2012)