Apache No space left on device: mod_rewrite: could not create rewrite_log_lock Configuration Failed
更换ssl证书后，重启Apache失败。
查看Apache的error日志发现：
[FriMay2018:07:232011][crit](28)Nospaceleftondevice:mod_rewrite:couldnotcreaterewrite_log_lock ConfigurationFailed [FriMay2018:08:222011][crit](28)Nospaceleftondevice:mod_rewrite:couldnotcreaterewrite_log_lock ConfigurationFailed [FriMay2018:13:502011][crit](28)Nospaceleftondevice:mod_rewrite:couldnotcreaterewrite_log_lock ConfigurationFailed [FriMay2018:13:522011][crit](28)Nospaceleftondevice:mod_rewrite:couldnotcreaterewrite_log_lock ConfigurationFailed
解决方法：
#重新写入一些活动信号量集的信息
ipcs-s|grepapache|perl-e'while(<stdin>){@a=split(/\s+/);print`ipcrmsem$a[1]`}'
</stdin>
参考链接：
http://carlosrivero.com/fix-apache—no-space-left-on-device-couldnt-create-accept-lock