[google-cloud-sql-discuss] Debugging "Out of memory (Needed XXXXXXX bytes)" error

Ever since we've migrated to Google Cloud SQL we are hitting an error every now and then:

/usr/sbin/mysqld: Out of memory (Needed 2576982012 bytes)

The number of bytes needed is always the same (~2.5G) and increasing RAM on an instance doesn't help.

Since there are no super privileges or direct access to configs and the scope of adjustable flags from UI/console is very limited we can't experiment with mysql configuration to find out what's causing the problem.

Do you have any ideas how we can debug this issue?

thanks,

Ann

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