1：启动apache：systemctl status httpd.service
2：查看看日志：tail -f /var/log/httpd/error_log
报：Apache ERROR: No space left on device: AH00023: Couldn‘t create the ssl-cache mutex
3：查看进程ps ax|grep httpd，进程存在杀掉
4：查看apache分析消息队列、共享内存和信号量
ipcs -s | grep apache
5：删除apache分析消息队列、共享内存和信号量
ipcs -s | grep apache | perl -e ‘while (<STDIN>) { @a=split(/\s+/); print `ipcrm sem $a[1]`}‘
6：重启apacheservice httpd restart
pache排查问题：Apache ERROR: No space left on device: AH00023: Couldn't create the ssl-cache mutex
原文：https://www.cnblogs.com/syy714363310/p/12202535.html