pache排查问题：Apache ERROR: No space left on device: AH00023: Couldn't create the ssl-cache mutex

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