Memory and SWAP 100%

[Muzzy]

Try this and let us know if works

Full RAM usage on 4 core, 8 GB RAM server with only one retail outlet with one POS machine

Well I tried many stuff. Finally tried are these steps 1 apt-get update 2 apt-get install -y libjemalloc-dev 3 in /etc/systemd/system/mariadb.service.d/ edit any .conf in this directory by adding information at the end-line. LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1 4 run systemctl daemon-reload 5 run sudo systemctl restart mysql.service 6 run sudo reboot I have found some respite on a demo server. Will be testing on production server.