Apache failed to start with the “No space left on device” error.
Login to server via SSH.
Check the apache error logs you are getting while restarting plesk.
================================================
-[notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[error] (28)No space left on device: Cannot create SSLMutex
Configuration Failed
================================================
How much IPC resources are used can be found using ‘ipcs’ command:
ipcs -a
run the below command to check the apache resource usage.
ipcs -a | grep apache
Run the below command to get the apache resource ids.
ipcs -a | grep apache | cut -d ” ” -f2
Delete all the apache resource files using the below command.
for i in `ipcs -a | grep apache | cut -d ” ” -f2`; do ipcrm -s $i; done
Again, check the apache resource usage.
ipcs -a | grep apache
Run, the below command again to check the IPC resource usage.
ipcs -a
Now, restart apache using the below command.
/etc/init.d/httpd restart