hi SQL server stops frequently , when i check using top command, one particular website using 90 % on RAM , so is there any way to resolve it. we are using ISPConfig 3.1 Ubuntu 16.04 WEbsite in PHP
How much RAM is there? It may be possible to reduce the RAM usage in the settings for that application. Or maybe it always uses that much? Or there is some runaway process hogging all RAM? Or malware that steals your computer time and RAM? Command htop may be better in zeroing in what is using that RAM. I do not know if htop is available for your Operating System. How much swap is used? Errors in syslog?
This thread gives tips on how to see how much memory is consumed. https://www.howtoforge.com/community/threads/centos-7-5-clamd-consuming-too-much-memory.79725/