This chapter describes how to configure different types of health checks for UDP servers in a load-balanced upstream server group. Prerequisites You have configured an upstream group of servers that handles UDP network traffic (DNS, RADIUS, syslog) i…

This article describes how to configure and use HTTP health checks in NGINX Plus and open source NGINX. Overview NGINX and NGINX Plus can continually test your upstream servers, avoid the servers that have failed, and gracefully add the recovered ser…

介绍 您可以让Kong代理的API使用ring-balancer,通过添加包含一个或多个目标实体的 upstream 实体进行配置,每个 target指向不同的IP地址(或主机名)和端口.ring-balancer将在各种目标之间负载,并基于上游对目标执行健康检查,使它们无论是否响应都是健康的或不健康的.然后,ring-balancer 只会将流量路由到健康的目标. Kong有两种健康检查方法,可分别或同时使用: active checks主动检查,其中定期请求目标中的特定HTTP或HTTPS端…

This chapter describes how to configure health checks for TCP. Introduction NGINX and NGINX Plus can continually test your TCP upstream servers, avoid the servers that have failed, and gracefully add the recovered servers into the load-balanced group…

Short Description: The article talks about the basic health checks to be performed when working on issues related to slow zookeeper performance Article Zookeeper is one of the most critical components in an HDP cluster, but it is also one that is giv…

在这篇文章中,我们将快速了解一下服务发现是什么,使用Consul在ASP.NET Core MVC框架中,并结合DnsClient.NET实现基于Dns的客户端服务发现 这篇文章的所有源代码都可以在GitHub上Demo项目获得. Service Discovery 在现代微服务架构中,服务可以在容器中运行,并且可以动态启动,停止和扩展. 这导致了一个非常动态的托管环境,可能有数百个实际端点,无法手动配置或找到正确的端点. 话虽这么说,我相信服务发现不仅适用于生活在容器中的粒状微服务.它可以被任…

转自:https://www.haproxy.com/blog/using-haproxy-as-an-api-gateway-part-3-health-checks/ Achieving high availability rests on having good health checks. HAProxy as an API gateway gives you several ways to do this. Run your service on multiple servers.Pl…

This chapter describes how to use NGINX Plus and open source NGINX to proxy and load balance TCP and UDP traffic. Introduction Load balancing refers to efficiently distributing network traffic across multiple backend servers. In Release 5 and later,…

一.什么是Health Monitor ChecksHealth Monitor Checks能够发现文件损坏,物理.逻辑块损坏,undo.redo损坏,数据字典损坏等等.Health Monitor Checks产生结果报告,它包含了解决问题的办法. -----oracle另外一个坏块检查工具DBVERIFY 详见我的这篇文章:Oracle坏块验证工具:DBVERIFYhttp://blog.chinaunix.net/uid-23284114-id-3687810.html----- Hea…

About Health Monitor Checks Health Monitor checks (also known as checkers, health checks, or checks) examine various layers and components of the database. Health checks detect file corruptions, physical and logical block corruptions, undo and redo c…