http://fallabs.com/tokyocabinet/
Tokyo Tyrant is a web interface to the Tokyo Cabinet database developed by the same author. It has a Memcached compatible protocol and can also exchange data through the HTTP protocol.
Tokyo Tyrant and Tokyo Cabinet constitute a distributed persistent storage system that supports high concurrency. For any original Memcached client, Tokyo Tyrant can be regarded as a Memcached, but its data can be stored persistently of.
Compared with Memcachedb, Tokyo Tyrant has the following advantages:
1. Failover: Tokyo Tyrant supports dual-machine mutual master and slave mode, and both master and slave databases can be read and written, while Memcachedb currently supports a method similar to MySQL master and slave database synchronization to achieve reading Write separation, support the "primary server can read and write, the secondary server read only" mode.
2. Small log file size: The log file used by Tokyo Tyrant for primary and secondary synchronization is relatively small, about 1.3 times that of the database file, while the synchronization log file of Memcachedb is very large. If it is not cleaned regularly, it is easy to fill the disk.