MySQL service stuck at starting after increasing 'innodb_log_file_size'
I recommend you change back that setting.

The problem is that the old versions of MySQL did not have a way to change that setting without some extra manual effort, namely removing the log files.

Unless the setting was terribly small, the failure to change it won't impact performance much.

Hmmm...  Are you upgrading from some old version to 8.0?  If so, there are other steps.

Meanwhile,...


  Increase the value of open_files_limit to at least 30000.


That seems very high, unless you expect to have thousands of tables, which is another problem to discuss.


  Change the value of innodb_flush_log_at_trx_commit to 0.


There are 3 options for that variable; I wonder why they picked the worst.