- Plesk 12.5 for Linux
- Plesk Onyx for Linux
Apache crashes with the following error in
PLESK_INFO: [mpm_event:error] [pid 22565:tid 140163371042688] AH00485: scoreboard is full, not at MaxRequestWorkers
- Event MPM mode is used by Apache.
This is Apache bug with ID #53555 which is already fixed in Apache 2.4.25.
As a workaround the following steps can be performed:
Log in to Plesk and open tab Tools & Settings > Apache Web Server
Change MPM mode option from Event to Prefork or Worker (if Worker is available in the operating system).
Log in to the server via SSH and change
restartin the file
for RHEL-based OS:
for Debian bases OS:
- Increase MaxRequestWorker settings according to the article Apache keeps going down: server reached MaxRequestWorkers setting
If none of the provided steps did help, check the website code. First of all, it should be checked that there are no any looped functions.