Problem with Attachments table prevents DB dump


For the past couple of days the mysqldump command that I use to back up
my RT database has been failing with the following message:

mysqldump: Error 2013: Lost connection to MySQL server during query when
dumping table Attachments at row: 216061

I’m running mysqldump thusly:

mysqldump --defaults-extra-file=/etc/mysql/backup_creds.cnf
–default-character-set=binary --opt --flush-logs --databases rt3_fas

If anyone has any insight into what may be causing this problem and how
it may be remedied, I’d be grateful to hear from him or her.


Gary Hall
Faculty of Applied Sciences
Simon Fraser University

In case someone else runs into this error:

I fixed the problem by increasing the limits on the MySQL system
variables net_write_timeout and max_allowed_packet.


Gary Hall wrote: