AWS ELB负载平衡器使运行状况检查(HTTP)失败 [英] AWS ELB load balancers keeps failing health check (HTTP)
问题描述
在我的EC2实例上，我的应用程序使用端口80，因此无法安装Apache来简单地使ELB运行状况检查成功.
On my EC2 instance my app is using Port 80, so cannot install Apache to simply get the ELB health check succeed.
对于ELB上的运行状况检查设置， 我正在使用端口-HTTP/80 Ping路径-/index.html
For health check settings on the ELB, I am using port - HTTP/80 Ping Path - /index.html
我还将这个index.html放在/var/www和/var/www/html/目录中.
And I have placed this index.html at the /var/www and /var/www/html/ directories as well.
<!DOCTYPE html PUBLIC "-//IETF//DTD HTML 2.0//EN">
<HTML>
<BODY>
<H1>Hi</H1>
<P>Hello to the World.</P>
</BODY>
</HTML>
任何线索为何无法通过健康检查? 没有这个，就没有流量去我的EC2实例.
Any clue why this is failing health check? Without this, no traffic is going to my EC2 instance.
推荐答案
发现了问题..一旦我为我的LB创建了一个新的安全组并将其保留为EC2 SG的IB，它就可以正常工作.在LB&中保持相同的SG EC2出于任何原因使其崩溃.
Found the issue .. once I created a new security group for my LB and kept that as IB for the SG used for EC2 it worked fine. Keeping the same SG across LB & EC2 is making it break for whatever reason.
http://docs.aws.amazon. com/elasticloadbalancing/latest/classic/elb-security-groups.html
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