对系统的某个接口进行极限压测,随着并发量上升,nginx开始出现502 no live upstreams while connecting to upstream的报错,维持最大并发量一段时间,发现调用接口一直返回502,即nginx已经发现不了存活的后端了. 通过跟踪端口,发现nginx 跟后端创建了大量的连接.这很明显是没有使用http1.1长连接导致的.因此在upstream中添加keepalive配置. upstream yyy.xxx.web{ server 36.10.xx.107…
场景: 目前在ECS中起了多个node服务,使用forever进程守护,最近,打开线上页面发现报错502 Bad Gateway;同时部分静态资源访问不到.(之前可以的): 解决: 首先查看nginx的日志信息,基本为如下重复: 2017/04/25 22:09:45 [warn] 25037#0: *12 an upstream response is buffered to a temporary file /usr/local/nginx/proxy_temp/3/00/000000000…
tengine2.2.3报错502的The proxy server received an invalid response from an upstream server问题处理 现象:访问订单的时候报错:502 Bad Gateway The proxy server received an invalid response from an upstream server. Sorry for the inconvenience.Please report this message and…
源码安装nginx报错,找不到gcc,但是实际上gcc是存在的,如下: # ./configure checking for OS + Linux -.el7.x86_64 x86_64 checking for C compiler ... not found ./configure: error: C compiler cc is not found # 尝试找寻gcc # whereis gcc .gz # 尝试指定cc # ./configure --with-cc=/usr/bin/g…