免费建站网站网页,qq登录网页版一键登录,更改wordpress谷歌字体,文件管理系统 wordpress文章目录 问题描述问题排查问题解决 问题描述
服务器环境#xff1a;
php#xff1a;8.4MySQL#xff1a;8.0Nginx#xff1a;1.26.2
在访问站点时#xff0c;一直报502#xff0c;而两天前还能正常访问。 问题排查
导致502的问题很多#xff0c;比如站点访问量太大… 文章目录 问题描述问题排查问题解决 问题描述
服务器环境
php8.4MySQL8.0Nginx1.26.2
在访问站点时一直报502而两天前还能正常访问。 问题排查
导致502的问题很多比如站点访问量太大站点受到了攻击等但是我看了后台重启了Nginx也没解决。现在遇到问题首选就用AI来诊断。
我先复制了网站的错误日志
2025/03/07 13:16:26 [crit] 795740#0: *2451 connect() to unix:/tmp/php-cgi-84.sock failed (2: No such file or directory) while connecting to upstream, client: 66.249.66.21, server: www.imqd.cn, request: GET /robots.txt HTTP/1.1, upstream: fastcgi://unix:/tmp/php-cgi-84.sock:, host: www.imqd.cn
2025/03/07 13:16:26 [crit] 795740#0: *2450 connect() to unix:/tmp/php-cgi-84.sock failed (2: No such file or directory) while connecting to upstream, client: 66.249.66.1, server: www.imqd.cn, request: GET /tag/es6 HTTP/1.1, upstream: fastcgi://unix:/tmp/php-cgi-84.sock:, host: www.imqd.cn丢给ChatGPT然后它回复的解决方案有点多我用了下面这一条
# 将该指令复制并在站点目录下执行命令行
systemctl list-units --typeservice | grep php输出
php-fpm-74.service loaded active running LSB: starts php-fpm
● php-fpm-84.service loaded failed failed LSB: starts php-fpm错误如上
表示我的环境中安装了2个php版本其中Nginx 试图使用 PHP 8.4 (php-fpm-84)但它 无法启动所以 502 Bad Gateway。
问题解决
这个我之前是用PHP8.4来运行WordPress站点的现在它的服务遇到了问题导致502问题。
所以很简单的解决方式就是将WordPress的PHP版本切换为7.4即可。 但是为什么会导致8.4 用不了呢wp运行在PHP8中更安全。
查看PHP的日志:
[14-Feb-2025 04:04:02] NOTICE: child 322153 stopped for tracing
[14-Feb-2025 04:04:02] NOTICE: about to trace 322153
[14-Feb-2025 04:04:02] NOTICE: finished trace of 322153
[15-Feb-2025 17:18:04] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 8 children, there are 1 idle, and 22 total children
[15-Feb-2025 17:18:05] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 16 children, there are 3 idle, and 26 total children
[16-Feb-2025 17:52:51] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 8 children, there are 2 idle, and 27 total children
[16-Feb-2025 17:52:52] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 16 children, there are 3 idle, and 30 total children
[16-Feb-2025 17:52:53] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 32 children, there are 2 idle, and 32 total children
[17-Feb-2025 04:01:49] WARNING: [pool www] child 1221397, script /www/wwwroot/www.cn/wp-admin/admin-ajax.php (request: GET /wp-admin/admin-ajax.php?actionwordfence_doScanisFork0scanModestandardcronKeyc1d5082357026a61a2ce6e9feff7f549signature31aa3d000f5f2053ad504322212ad58a52a5a0e3032b25317bbdc7ef656b0606) executing too slow (34.708130 sec), logging
[17-Feb-2025 04:01:49] NOTICE: child 1221397 stopped for tracing
[17-Feb-2025 04:01:49] NOTICE: about to trace 1221397
[17-Feb-2025 04:01:49] NOTICE: finished trace of 1221397
[17-Feb-2025 10:57:21] NOTICE: Terminating ...
[17-Feb-2025 10:57:21] NOTICE: exiting, bye-bye!发现了2个问题
PHP-FPM 进程池pool www资源不足服务器负载过高
日志多次提示 seems busy说明 PHP 进程太少导致请求等待时间变长。你可能需要 增加 PHP-FPM 的进程数pm.start_servers、pm.min/max_spare_servers。
某些 PHP 脚本执行太慢导致超时
日志中显示 admin-ajax.php 执行时间过长34.7 秒可能是 WordPress 插件如 Wordfence在运行扫描任务影响了服务器性能。
所以归根结底还是服务器配置不够并且因为我开启了Wordfence插件扫描导致的原因。 如果你在开发WordPress时遇到了问题可以在下方与我联系作为你的WordPress顾问。
