This Record Lock Issue Version 4 lists the output from the query SHOW ENGINE INNODB STATUS\G that apparently concerns a record locking issue - perhaps look into that in your case - you stated one of your BOMs was particularly slow.
This Record Lock Issue Version 4 lists the output from the query SHOW ENGINE INNODB STATUS\G that apparently concerns a record locking issue - perhaps look into that in your case - you stated one of your BOMs was particularly slow.