2018-01-07 9:38:18 139980432365760 [Note] InnoDB: Highest
supported file format is Barracuda.
2018-01-07 10:11:48 139980432365760 [Note] InnoDB: 128 out of 128
rollback segments are active.
This is really unacceptable behaviour. It looks like you have encountered
Can you reproduce the delay on every startup? Stack traces (from http://poormansprofiler.org/ or "perf top -g" or similar) during this startup delay would be very useful.