springcloud系列10 整合Hystrix遇到的坑:-优快云博客

本文链接：https://blog.youkuaiyun.com/maxchenBug/article/details/88153560

本文详细记录了在SpringCloud项目中整合Hystrix断路器时遇到的问题及解决方案，包括配置类的正确实现、主机名错误修正、以及如何避免连接CommandMetricStream失败等常见坑点。

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springcloud系列10 整合Hystrix遇到的坑:

首先配置类:

  @Bean
    public ServletRegistrationBean getServlet(){
        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
        registrationBean.setLoadOnStartup(1);
        registrationBean.addUrlMappings("/actuator/hystrix.stream");
        registrationBean.setName("HystrixMetricsStreamServlet");
        return registrationBean;
    }
}

这个地方忘记加了

第二主机名写出了locahost后台报错

java.net.UnknownHostException: loclahost
    at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_192]
    at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:929) ~[na:1.8.0_192]
    at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1324) ~[na:1.8.0_192]
    at java.net.InetAddress.getAllByName0(InetAddress.java:1277) ~[na:1.8.0_192]
    at java.net.InetAddress.getAllByName(InetAddress.java:1193) ~[na:1.8.0_192]
    at java.net.InetAddress.getAllByName(InetAddress.java:1127) ~[na:1.8.0_192]
    at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45) ~[httpclient-4.5.6.jar:4.5.6]
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.resolveHostname(DefaultClientConnectionOperator.java:263) ~[httpclient-4.5.6.jar:4.5.6]
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:162) ~[httpclient-4.5.6.jar:4.5.6]
    at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:326) ~[httpclient-4.5.6.jar:4.5.6]
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610) ~[httpclient-4.5.6.jar:4.5.6]
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445) ~[httpclient-4.5.6.jar:4.5.6]
    at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.6.jar:4.5.6]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.6.jar:4.5.6]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108) ~[httpclient-4.5.6.jar:4.5.6]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.6.jar:4.5.6]
    at org.springframework.cloud.netflix.hystrix.dashboard.HystrixDashboardConfiguration$ProxyStreamServlet.doGet(HystrixDashboardConfiguration.java:177) ~[spring-cloud-netflix-hystrix-dashboard-2.1.0.RELEASE.jar:2.1.0.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcat-embed-core-9.0.14.jar:9.0.14]

这两个不加会报错:

Unable to connect to Command Metric Stream.

还有就是那个界面之后不知道如何操作:

posted @ 2019-01-29 11:55 动手的程序员阅读( ...) 评论( ...) 编辑收藏