Debuging import of a large dump file to MySQL

I'm trying to import a 50GB dump file to AWS RDS instance and have an issue. I get the following error: ERROR 2013 (HY000) at line 15850: Lost connection to MySQL server during query In the beaning i got this error after a few minutes, Then i increased the parameter max_allowed_packet to 1G. Now i get this error after 2.5 hours. What could be the issue? Is there any way to debug this issue? I couldn't find any relevant logs. Here are some of the relevant DB paramameters: mysql> SHOW VARIABLES like '%innodb_bu%'; +-------------------------------------+----------------+ | Variable_name | Value | +-------------------------------------+----------------+ | innodb_buffer_pool_dump_at_shutdown | OFF | | innodb_buffer_pool_dump_now | OFF | | innodb_buffer_pool_filename | ib_buffer_pool | | innodb_buffer_pool_instances | 8 | | innodb_buffer_pool_load_abort | OFF | | innodb_buffer_pool_load_at_startup | OFF | | innodb_buffer_pool_load_now | OFF | | innodb_buffer_pool_size | 50503614464 | +-------------------------------------+----------------+ 8 rows in set (0.00 sec) mysql> SHOW VARIABLES LIKE '%_timeout'; +-----------------------------+----------+ | Variable_name | Value | +-----------------------------+----------+ | connect_timeout | 10 | | delayed_insert_timeout | 300 | | innodb_flush_log_at_timeout | 1 | | innodb_lock_wait_timeout | 50 | | innodb_rollback_on_timeout | OFF | | interactive_timeout | 28800 | | lock_wait_timeout | 31536000 | | net_read_timeout | 30 | | net_write_timeout | 60 | | rpl_stop_slave_timeout | 31536000 | | slave_net_timeout | 3600 | | wait_timeout | 28800 | +-----------------------------+----------+ 12 rows in set (0.00 sec) mysql> SHOW VARIABLES like '%max_all%'; +--------------------------+------------+ | Variable_name | Value | +--------------------------+------------+ | max_allowed_packet | 1048576000 | | slave_max_allowed_packet | 1073741824 | +--------------------------+------------+ Please advise.