我在两个VM实例上有一个node.js应用程序,我正在尝试通过网络负载平衡来实现负载平衡.为了测试我的服务器已启动并正在服务,我在应用程序内部侦听端口上有健康检查请求'/health.txt'.我有相同的标签,防火墙规则等相同配置的两个实例,但健康检查没有一个实例不断,我可以用我的内部网络上或从外部卷曲做检查和测试工作正常,在这两种情况下,但网络负载平衡器始终将一个实例报告为关闭.
我使用了ngrep并从运行状况实例运行,我看到:
T 169.254.169.254:65374 -> my.pub.ip.addr:3000 [S]
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T my.pub.ip.addr:3000 -> 169.254.169.254:65374 [AS]
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T 169.254.169.254:65374 -> my.pub.ip.addr:3000 [A]
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T 169.254.169.254:65374 -> my.pub.ip.addr:3000 [AP]
GET /health.txt HTTP/1.1.
Host: my.pub.ip.addr:3000.
.
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T my.pub.ip.addr:3000 -> 169.254.169.254:65374 [A]
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T my.pub.ip.addr:3000 -> 169.254.169.254:65374 [AP]
HTTP/1.1 200 OK.
X-Powered-By: NitroPCR.
Accept-Ranges: bytes.
Date: Fri, 14 Nov 2014 20:00:40 GMT.
Cache-Control: public, max-age=86400.
Last-Modified: Thu, 24 Jul 2014 17:58:46 GMT.
ETag: W/"2198506076".
Content-Type: text/plain; charset=UTF-8.
Content-Length: 13.
Connection: keep-alive.
.
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T 169.254.169.254:65374 …