Mysql shuts down periodically and unable to access via phpMyAdmin

Problem: after restart mysql, it will shut down within few days eventually .

Solution: for me it is because the cache memory is not enough. So first edit the mysql config file:

vi /etc/my.cnf

and change below code:

[inonodb]
innodb_buffer_pool_size=8MB

set a smaller one is better. Then save & close.

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