一则apache无法启动

apache无法启动

 

常规 查看出错日志

vim /var/log/httpd/error_log

 

发现：

 

 

[Mon Jul 04 14:13:59.260922 2016] [core:emerg] [pid 27103] (28)No space left on device: AH00023: Couldn't create the rewrite-map mutex

[Mon Jul 04 14:13:59.260946 2016] [:emerg] [pid 27103] AH00020: Configuration Failed, exiting

 

 

则执行下面语句，释放同步信号量

ipcs | grep apache | awk '{print $2}' > sem.txt

for i in `cat sem.txt`; do { ipcrm -s $i; }; done;

 

 

因为之前一直用reload热部署apache，可能有些mutex信号量没有释放。造成无法申请。