open at 2015/12/31

• Zookeeper
1. bridview
2. snapshot&txnlog
3. watcher&notify
4. quorum(proposal&election)
5. client details
6. leader/follower/observer
7. session&ephemeral
8. server failover

• Leveldb
1. bridview
2. memtable
3. disktable
4. version/redo log
5. filter/metaindex
6. reader/writer
7. compact

• Kafka
1. bridview
2. producer
3. consume
4. borker
5. log
6. replication
7. controller
8. zk in kafka

• Redis
1. bridview
2. dict
3. rdb
4. aof
5. replication
6. event mechanism

• Tachyon
1. bridview
2. lineage/checkpoint
3. master/ha
4. worker
5. client
6. with spark/hadoop

• Lucene
1. lucene files
2. defect
3. optimize
4. distribution
5. realtime

• Hadoop tools
1. zebra
2. elephanttwin

• Computational advertising
1. ad retrieval
2. sessionlog

• Memcached
1. bridview
2. memory management
3. features

• Bookkeeper
1. bridview
2. bookie
3. client:read/write
4. improvement

• Papers
1. photon (joining of continuous data streams)
2. haystack (facebook's photo storage)
3. earlybird (realtime search at twitter)

• Fastdfs
• Hdfs

• Related variant
1. rocksdb (leveldb@facebook)
2. twemcache (memcached@twitter)
3. localcache (wdxmandela)
4. paxosdb (photon/wdxmandela)

• Appendix
• zkclient