Update from 1.4 to 2.3 error on pre_upgrade.sql

[Mikolson]

Variable_name Value
connect_timeout 10
delayed_insert_timeout 300
innodb_lock_wait_timeout 120
innodb_rollback_on_timeout OFF
interactive_timeout 28800
lock_wait_timeout 31536000
net_read_timeout 30
net_write_timeout 60
slave_net_timeout 3600
thread_pool_idle_timeout 60
wait_timeout 3600
max_allowed_packet 67108864
slave_max_allowed_packet 1073741824

[alfa24]

I would try to increase max_allowed_packet