php5-fpm + nginx + google bot =由同行重置连接

Question

所以我只是花了一个小时试图弄清楚为什么我的日志在最后几个小时内每分钟都有几次缓慢的PHP脚本警告.

我最初专注于php慢日志和php错误日志吓坏了认为这是我的代码.事实上,我正在实施一些DNS调整,这就是为什么我被引导到了错误的道路上.

我最终检查了nginx错误日志,它显示了来自几乎相同IP的同行连接重置的一行一行.

我搜索了IP,发现它属于谷歌,所以这显然是访问该网站的谷歌机器人/蜘蛛.

这是错误日志的剪辑

2013/06/06 14:04:05 [error] 12313#0: *7435269 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.187, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:04:05 [error] 12308#0: *7435135 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.167, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:04:05 [error] 12308#0: *7435994 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.199, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:04:12 [error] 12309#0: *7436209 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.168, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:05:12 [error] 12309#0: *7441608 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.177, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:05:15 [error] 12310#0: *7440634 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.219, server: www.domain.com, request: "GET /c.html?q= xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:05:15 [error] 12313#0: *7441634 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.194, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:06:02 [error] 12310#0: *7444721 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.221, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:06:05 [error] 12308#0: *7443911 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.203, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:06:05 [error] 12309#0: *7445423 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.164, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"
2013/06/06 14:06:05 [error] 12310#0: *7445640 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 209.85.238.222, server: www.domain.com, request: "GET /c.html?q=xyz HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.domain.com"

对等体重置连接的原因是什么.谷歌机器人真的会访问页面并终止请求,只是检查它是否还活着？

这不是很好,因为它调用我的curl请求,然后属于孤立线程,因为客户端已退出.意思是他们只是超时造成缓慢的PHP脚本.

或者我读错了吗？

Answer 1

如果您查看错误消息，它会显示

从上游读取响应头时

这意味着问题不是 google 终止请求，而是 nginx 的上游（恰好是 php-fpm）终止请求。通常，这是由运行 php 代码的错误引起的。

鉴于我们没有代码，以下是一些常规故障排除步骤：

• request_terminate_timeout在 php-fpm 的配置中，增加、max_input_time和的值max_execution_time。
• 激活 php.ini 或 pool .conf 配置文件中的错误日志记录（如果是生产网站，则不激活“display_error”）。
• 尝试在正在运行的代码上运行调试器（xdebug 非常有用）来单步执行代码，您将偶然发现大多数问题。