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Question

For the past 4 days I have had massive problems with my nightly updates, except for 1 night were it all went fine in between these 4 days.

During th

Answer 1

The problem was with innodb_adaptive_hash_index

innodb_adaptive_hash_index=0 and a restart solved the problem.

As ive stated in the question

"The architectural changes in MySQL 5.6 and higher make more workloads suitable for disabling the adaptive hash index than in earlier releases, although it is still enabled by default."

This worked for me as I have not had the same issue again.