Lightsail ubuntu mysql 8

If you are using Ubuntu 20.04, the following command will install the MySQL server.

sudo apt update
sudo apt install mysql-server -y
sudo systemctl start mysql

I installed it with the above command. However, we have confirmed that an error occurs when trying to start the MySQL server. One possible cause is insufficient memory, as shown in the following syslog. Perhaps Lightsail at $3.5 a month is not enough spec to run MySQL.

Sep  4 12:56:12 ip-172-26-15-94 kernel: [  226.248936] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/system.slice/mysq
l.service,task=mysqld,pid=4120,uid=113
Sep  4 12:56:12 ip-172-26-15-94 kernel: [  226.248944] Out of memory: Killed process 4120 (mysqld) total-vm:307040kB, anon-rss:199228kB, file-rss:2164kB, shmem-rss:0kB, UI
D:113 pgtables:560kB oom_score_adj:0
Sep  4 12:56:12 ip-172-26-15-94 kernel: [  226.270609] oom_reaper: reaped process 4120 (mysqld), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
Sep  4 12:56:12 ip-172-26-15-94 systemd[1]: mysql.service: Main process exited, code=killed, status=9/KILL
Sep  4 12:56:12 ip-172-26-15-94 systemd[1]: mysql.service: Failed with result 'signal'.
Sep  4 12:56:12 ip-172-26-15-94 systemd[1]: Failed to start MySQL Community Server.
Sep  4 12:56:12 ip-172-26-15-94 systemd[1]: mysql.service: Scheduled restart job, restart counter is at 5.
Sep  4 12:56:12 ip-172-26-15-94 systemd[1]: Stopped MySQL Community Server.
Sep  4 12:56:12 ip-172-26-15-94 systemd[1]: mysql.service: Start request repeated too quickly.
Sep  4 12:56:12 ip-172-26-15-94 systemd[1]: mysql.service: Failed with result 'signal'.