Cache system: memcached (Group cache), Redis, MongoDB, Couchbase (CouchDB, Membase, Couchone)
HTTP cache: Varnish, nginx, traficserver, squid
Load balancing: LVs, F5, Nginx
Agent: Nginx
Cluster operating system (running on a standalone system): Mesos
Cluster Management: Kubernetes
Web server: Nginx, LIGHTHTTPD, Apache, Tengine
WSGI implementation: UWSGI, Gunicorn
Web framework (WSGI Server): web.py, Bottle, Django, Tornado, Beego (Golang), Martini (Golang), Revel (Golang)
Web performance test: AB, Siege
Consistency: Zookeeper (zkclient)
Distributed File systems: Fastdfs, TFS, YFS, GFS, Ceph
Distributed systems: S4,storm,puma, Hadoop, Spark
SQL database:
NoSQL databases: MongoDB, HBase, Cassandra, Tokyocabinet and Tokyo Tyrant, Influxdb, Bdb,camlistore,rocksdb (LevelDB)
Storage Engine: Boltdb
Availability: keepalived
Rpc:thrift
Chart systems: Grafana, Graphite (tasseo), Opentsdb
System Performance Acquisition Tools: COLLECTD, STATD, Fluentd, Telegraf
Cdn:apache Trafficserver
Private cloud: Owncloud, OpenStack
Vim Plugin Manager:
Vundle
Message Queuing System:
RabbitMQ
ActiveMQ
Beanstalkd
Gearman
Kafka
ZeroMQ
Log analysis: WebTrends, Splunk
Redis
Go Language database:
Gorilla,
Network Backend components: Load balancing, persistence, memory cache, reverse proxy, firewall, Message Queuing, Distributed File system, System resource acquisition system and icon display system, usability, consistency, Web development framework, Web performance pressure measurement, distributed computing,
Document Tools: Spinx
Data Center Open source hardware: openrack
Well-known network backend open source software collection