tstdb 介绍
tstdb是一种基于日志重放机制的memcached兼容的key-value数据库，可用于需要缓存数据落地的一些场合。
它兼容memcached的客户端（支持get,set和delete命令），支持value过期设置。读写性能与memcached接近。日志重放速度很快，作者测试时一亿数据的reloading(key:10bytes
,value: 20 bytes)只需要2分钟，内存占用2.1G。
Introduction
1. keys are loaded into memory, and are organized as a ternary search tree
2. big values are stored on disk-based log; no disk IO for reading small
values, which are less than 8 bytes
3. log file and hint file are used to reload data when restarting db server
4. very fast! both the qps and data reloading speed.
5. a memcached compatible server.
Todo LIST:
supporting prefix searching.
Have a look
http://code.google.com/p/tstdb/source/browse/
Download
Install
epoll is needed!
tar -xzf tstdb_0.2.tar.gz cd tstdb make run the server: ./tstserver show help./tstserver -h
Performance
the performance is comparable to memcached.
you cat test it by yourself.
benchmark
tstdb 官网
http://code.google.com/p/tstdb/
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