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<\/p>\n\n\n\nI use wordpress, nginx, mysql, php-fpm with minimun cost on DigitalOcean and found the memory leak problem. This cause MySQL stop working and my websit goes down.<\/p>\n\n\n\n
<\/p>\n\n\n\n
I also found there are lots child processes of php-fpm. I thought I should consider to increase the memory (use 1 GB) or not. Anyway I don’t want to spent my money for my website as I’m person to check it out only one HaHa if you came across to read this. You are second. <\/p>\n\n\n\n
These are I did for fix the memory issue.<\/p>\n\n\n\n
Create swap file https:\/\/www.digitalocean.com\/community\/tutorials\/how-to-add-swap-on-centos-7 I create 2GB swapfile because my memory has 1 GB . If you have memory more than 1 GB , you should multiply 1.5 of physical memory.<\/p>\n\n\n\n
\/\/Check Swap usage\nswapon -s\n\/\/if no return message, it mean no swap \n\n\/\/create swap file\nsudo dd if=\/dev\/zero of=\/swapfile count=2096 bs=1MiB\n\n\/\/change permission read write only\nsudo chmod 600 \/swapfile<\/mark><\/code>\n\n\/\/make a swapfile\nmkswap \/swapfile\n\n\/\/enable swap \nswapon \/swapfile\n\n\/\/Check Swap usage again\nswapon -s\n\/\/should return swap size\n[root@ake warawich.com]# swapon -s\nFilename Type Size Used Priority\n\/swapfile file 2097148 264 -2\n\n<\/pre>\n\n\n\nMake the Swap File Permanent<\/strong><\/p>\n\n\n\nvi \/etc\/fstab<\/p>\n\n\n\n
\/swapfile swap swap sw 0 0<\/pre>\n\n\n\nThen reboot OS<\/p>\n\n\n\n
Now, you have memory more but the root cause is php-fpm create lots of child process and consume your memory , so you need to limit php-fpm create child process too.<\/p>\n\n\n\n
vim \/etc\/php-fpm.d\/www.conf<\/p>\n\n\n\n
\/\/change configure as below\npm = ondemand\npm.max_children = 20\npm.start_servers = 5\npm.process_idle_timeout = 10s\npm.max_requests = 100<\/pre>\n\n\n\nsave and restart php-fpm service<\/p>\n\n\n\n
systemctl restart php-fpm <\/pre>\n\n\n\n\/\/check memory free\nroot@ake warawich.com]# free -m\ntotal used free shared buff\/cache available\nMem: 990 544 111 12 335 294\nSwap: 2047 0 2047<\/pre>\n\n\n\nAll of these what i did! Please suguest me if what you think or what I miss. Thank you.<\/p>\n","protected":false},"excerpt":{"rendered":"
I use wordpress, nginx, mysql, php-fpm with minimun cost on DigitalOcean and found the memory leak problem. This cause MySQL stop working and my websit goes down. I also found there are lots child processes of php-fpm. I thought I should consider to increase the memory (use 1 GB) or not. Anyway I don’t want … <\/p>\n