nginx问题记录

工作中遇到几个关于nginx的错误，总结如下，随用随记录
1、nginx获取不到真实客户端IP：
解决方法，在所有location中加入如下配置：
proxy_set_header x-forwarded-for $remote_addr;
对应在java中获取源ip的方法中按下述写法：
/**
 * 获取用户登录时本地的ip地址
 * @dup
 * @param request
 * @return
 */
public static String getRealIpAddres(HttpServletRequest request) {

String ip = request.getHeader("x-forwarded-for");

if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

ip = request.getHeader("Proxy-Client-IP");

}

if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

ip = request.getHeader("WL-Proxy-Client-IP");

}

if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

ip = request.getRemoteAddr();

}

return ip;
}
2、连接超时：
错误现象：当程序要后台运行一个需要较长时间的方法时（通常超过60秒），nginx报如下错误：
2017/01/09 14:09:30 [error] 24696#0: *157 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 10.167.180.93, server: localhost, request: "POST
/admincenter/manage/resourceauth/device/unix/unixaccount.do?method=unixExportSourcesAcc HTTP/1.1", upstream: "http://10.167.183.19:8091/admincenter/manage/resourceauth/device/unix/unixaccount.do?method=unixExportSourcesAcc", host: "10.167.183.109", referrer:
"https://10.167.183.109/admincenter/manage/resourceauth/device/unix/unixTabPanel.jsp?resourceGroupRDN=cn=00550000000000000000&resourceGroupName=%25E9%25BE%2599%25E6%25B1%259F%25E6%25B5%258B%25E8%25AF%2595"
解决方法：在所有location中加入如下配置：
proxy_connect_timeout    600;
proxy_read_timeout       600;
proxy_send_timeout       600;

以下是网上查的常见错误列表：
http://www.360doc.com/content/12/1024/11/1073512_243439687.shtml