hystrix dashboard集群监控部署

1、需要监控的web应用web.xml里添加HystrixMetricsStreamServlet

 <servlet>
        <display-name>HystrixMetricsStreamServlet</display-name>
        <servlet-name>HystrixMetricsStreamServlet</servlet-name>
        <servlet-class>com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>HystrixMetricsStreamServlet</servlet-name>
        <url-pattern>/hystrix.stream</url-pattern>
    </servlet-mapping>

2、安装hystrix Turbine 来监控集群
https://github.com/Netflix/Turbine/wiki/Getting-Started-(1.x)


3、下载standalone-hystrix-dashboard-{VERSION}-all.jar
这个是hystrix-dashboard的扩展，提供jar方式启动hystrix-dashboard，比较轻量级(推荐)，当然也可以用hystrix自己提供的
https://github.com/kennedyoliveira/standalone-hystrix-dashboard 推荐
https://github.com/Netflix/Hystrix/tree/master/hystrix-dashboard