DBeaver 错误 2013：与 MySQL 的连接丢失。 为什么？

Question

I'm using DBeaver to Dump database using SSH Tunnel from Godaddy Business Shared Hosting but while mysqldump the process stop to display this error : mysqldump: Error 2013: Lost connection to MySQL server during query when dumping table abs_attendance at row: 17856

Why It display this error & How to fix it ? In Export Configuration i have added Extra command args: --no-tablespaces but no change same error display

Answer 1

See the result of SELECT @@max_allowed_packet; and change it

max_allowed_packet

Description: Maximum size in bytes of a packet or a generated/intermediate string. The packet message buffer is initialized with the value from net_buffer_length, but can grow up to max_allowed_packet bytes. Set as large as the largest BLOB, in multiples of 1024. If this value is changed, it should be changed on the client side as well. See slave_max_allowed_packet for a specific limit for replication purposes.

Commandline: --max-allowed-packet=#
Scope: Global, Session
Dynamic: Yes (Global), No (Session)
Data Type: numeric
Default Value:
16777216 (16M) >= MariaDB 10.2.4
4194304 (4M) >= MariaDB 10.1.7
1048576 (1MB) <= MariaDB 10.1.6
1073741824 (1GB) (client-side)
Range: 1024 to 1073741824

The DEFAULT Values are different for nearly each version of MySQL/MariaDB.

You also can add options to your mysqldump so that they limit the lines per insert.

Like

mysqldump --skip-extended-insert --net_buffer_length=50000 myschema > yourfile.sql