- Plesk for Linux
The Advanced Monitoring/Health Monitor utility reports an alert about Apache high memory usage (20-25%).
The total memory is low on the server:
# free -h
total used free shared buff/cache available
Mem: 1.0G 409M 295M 44M 286M 372M
Swap: 1.0G 502M 521M
There are no Apache processes that consume a lot of memory in the 'top' output.
This is a Plesk bug with ID EXTPLESK-1369, which has already been fixed in Advanced Monitoring 1.1.2.
If Advanced Monitoring 1.1.2 is already installed, but the issue remains, either allocate additional memory to the server or change alarm level for Apache (Web):
- For Advanced Monitoring in Plesk Obsidian:
In Plesk, go to Advanced Monitoring and click Settings > Thresholds.
Increase the percentage value for Apache & php-fpm memory usage, for example to 50%.
Apply the changes.
- For Health Monitoring in Plesk Onyx: