----- Original Message -----
From: "Steven Nakhla" <[EMAIL PROTECTED]>
To: "QT" <[EMAIL PROTECTED]>
Cc: "MySQL" <[EMAIL PROTECTED]>
Sent: Monday, November 04, 2002 3:47 PM
Subject: MySQL and binary data


> I am using Qt 3.0.5's QSql database classes to store
> information in a MySQL database.  MySQL is at version
> 3.23.49.  I am trying to store binary data into a
> column marked as MEDIUMBLOB (or even LONGBLOB) but am
> having difficulties.  Whenever I insert data that is
> around 1 Megabyte in size, I get an error saying
> "MySQL server has gone away".  It doesn't happen with
> smaller data, and even if I change the column type to
> LONGBLOB I still have this problem.  The data I am
> trying to insert is an exectuable application,
> although I have tried it with a normal text file and
> have run into the same problems.  Can anyone shed some
> light onto what could be causing this problem?
> Thanks!!


I think you may be running into the "max_allowed_packet" size, which
defaults to 1048576 (1M). Beyond that, the mysqld server issues a Packet too
large error and closes the connection. Restart the server with the
set-variable=max_allowed_packet=16M option, or any other value of your
choice.

- Mark


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