Question

zookeeper在Dubbo中扮演了一个什么角色，起到了什么作用

Answer 1

我了zookeeper-3.4.5.tar.gz版本的包。接下来把zookeeper-3.4.5.tar.gz解压到文件夹D:;zookeeper-3.4.5;中，
然后将zoo_sample.cfg改名为zoo.cfg。然后将配置文件zoo.cfg改成如下：

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The number of milliseconds of each tick
tickTime=2000
The number of ticks that the initial
synchronization phase can take
initLimit=10
The number of ticks that can pass between
sending a request and getting an acknowledgement
syncLimit=5
the directory where the snapshot is stored.
do not use /tmp for storage, /tmp here is just
example sakes.
dataDir=D:;;zookeeper-3.4.5;;data
dataLogDir=D:;;zookeeper-3.4.5;;log
the port at which the clients will connect
clientPort=2181

然后就可以启动了。
DUBBO的管理平台DUBBO-ADMIN的部署
dubbo-admin.war可在网上百度去，但是我了好几个war包，发布上去服务启动都报错，这个时候大概是我们系统的JDK和编译
dubbo-admin.war的JDK版本不同导致的了。所以我之后直接了dubbo-master的源代码，然后自己编译了一个war包，这样就不会存
在启动报错的问题了。