Hadoop中的子项目Zookeeper能做什么

很高兴得看到Yahoo捐献的Zookeeper已经从sourceforge迁移到Apache,并成为Hadoop的子项目.

       第一篇论文是2007年sigmod上的 Map-Reduce-Merge: Simplified Relational Data Processing on Large Clusters，SIGMOD’07, Ju

When you find yourself working on big systems, a useful technique is to decompose it into services. Moving from a big monolithic server to a bunch of separate services can be a big challenge but if you had foresight, many of your services were already decoupled in your system from day 1 even though you were deploying it monolithicly.

A common technique for decomposing services is using RPC. At Google, we used protocol buffers, which were briefly descibed in the

Byung-Gon Chun,^† Frank Dabek,^⋆ Andreas Haeberlen,^‡ Emil Sit,^⋆ Hakim Weatherspoon,^†
M. Frans Kaashoek,^⋆ John Kubiatowicz,^† and Robert Morris^⋆

^⋆

The C Region Library (CRL) is an all-software distributed shared memory (DSM) system intended for use on message-passing multicomputers and distributed systems.