I am trying to import our old database into a new databsae on our test server however I keep coming accross this error:
"Lost connection to MySQL server during query".
As you can see below I have tried starting the server with increased values for read timeout and wait timeout. Plus I
have increased max_allowed_packet = 1024M
[root@DB-01 alexl]# /etc/init.d/mysql start
Starting MySQL (Percona Server). SUCCESS!
[root@DB-01 alexl]# mysql -hlocalhost magento < magento.sql
ERROR 2013 (HY000) at line 15235: Lost connection to MySQL server during query
The sql file is ~7gig but need it all.
Any help is appreciated.
+-----------------------------+----------+
| Variable_name | Value |
+-----------------------------+----------+
| connect_timeout | 10 |
| delayed_insert_timeout | 300 |
| have_statement_timeout | YES |
| 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 | 6000 |
| net_write_timeout | 6000 |
| rpl_stop_slave_timeout | 31536000 |
| slave_net_timeout | 3600 |
| thread_pool_idle_timeout | 60 |
| wait_timeout | 28800 |
+-----------------------------+----------+
| max_allowed_packet | 1024M |
Best Answer
The value of max_allowed_packet is too small. You can overwrite it in an import by running
mysql --max_allowed_packet=7500M magento < magento.sql
or by editing themy.cnf
file and restarting MySQL as explained here.