备忘一个
Scribe is a server for aggregating log data that's streamed in real time from clients. It is designed to be scalable and reliable.
scribe，facebook开源的日志服务器，做个记号，回头测测，看看怎么个实时法。如果靠谱还可以用做FTR的日志服务器。
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对于顺序写入的日志服务，最终瓶颈会必然会集中在io（本地io，网络io）上，实时与否取决于对日志的敏感程度。所谓实时，无非是服务的内存缓存的数据更多点一点，磁盘io更少一点。