mysql issue

Code:

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ySql.Data.MySqlClient.MySqlException (0x80004005): Unable to connect to any of the specified MySQL hosts.
  at MySql.Data.MySqlClient.NativeDriver.Open()

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Emulator cant connect to mysql becaouse mysql server use 100 % cpu.
Using Maria DB.

Any ideas what to do with the mysql server?

This errors happend when mysql server has been on for over 24 hours.
Mysql server use around 10-12 GB ram when this happends.

What emulator are you running ?

I recommend you to use the latest Mysql Server https://dev.mysql.com/downloads/mysql/5.7.html