彻底解决Nginx 504 Gateway Time-out的一种途径[原创]
昨天刚装的LNMPZ一键安装包，今天调试参数的时候发现Nginxp频繁出现504 Gateway Time-out错误，也参阅了网上的文章，诸如做8组较大的 large_client_header_buffers 8 128k; 但是问题仍没有解决。
要彻底解决Nginx 504 Gateway Time-out，还得从源头分析产生Nginx 504 Gateway Time-out的原因。504 Gateway Time-out产生的主要原因是PHP脚本执行时间过长造成的。一方面是由于处理时的缓存不够大，这通常用网上所说的增加8组较大的缓存可以解决；另一方面则是PHP脚本自身的问题，导致死循环或者无法释放。解决该问题的方法则是让PHP有个最大的执行时间。
我的具体做法是在php-fpm.conf里修改最大请求时间，把默认的0s改成30s，即<value name=”request_terminate_timeout”>30s</value>
这样再重启php-cgi,问题解决。
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