[rt-users] RT 3.6.4 MYSQL Backup

Ham MI-ID, Torsten Brumm torsten.brumm at Kuehne-Nagel.com
Wed Jul 30 10:39:02 EDT 2008

Yes, like drew said, this can also be the problem, i remeber from our last move.
We increased the max_allowed_packet option massivly, but also without success. We did the trick by dumping only the attachments table and restored them later. Was working fine.

----- Originalnachricht -----
Von: Drew Barnes <barnesaw at ucrwcu.rwc.uc.edu>
An: Ham MI-ID, Torsten Brumm
Cc: andrew.fay at hotmail.co.uk <andrew.fay at hotmail.co.uk>; rt-users at lists.bestpractical.com <rt-users at lists.bestpractical.com>
Gesendet: Wed Jul 30 16:35:44 2008
Betreff: Re: [rt-users] RT 3.6.4 MYSQL Backup

I was thinking that it might be the max_allowed_packet option my.cnf.  
Recent versions of MySQL seem to export the tables in what my office has 
begun to refer to as "massive dumps," that is, One insert statement for 
each table.

One other option would be not exporting the data in binary format, IIRC.

Ham MI-ID, Torsten Brumm wrote:
> Hi fay,
> I'm not sure about the error, but if you can't restore the attachments 
> table correctly, then your rt install will be broken, rt stores not 
> only the things we know as attachment like .doc or .xls, he also 
> stores each mail text etc there. A broken table is not good in this 
> way ;-)
> Can you try as workaround to stop your mysqld copy over the plain 
> files (innodb etc) to the new server an try to start there.
> Tob
> ------------------------------------------------------------------------
> *Von*: rt-users-bounces at lists.bestpractical.com
> *An*: rt mailing list
> *Gesendet*: Wed Jul 30 16:11:20 2008
> *Betreff*: [rt-users] RT 3.6.4 MYSQL Backup
> Hi,
> I am having a problem backing up the mysql db for our RT installation,
> I can back it up correctly into an SQL file.. move it to another 
> machine with mysql running and get errors trying to restore it.
> If I remove the attachments table from the restore then it restores fine,
> the error i get is :
> Error while executing this query:INSERT INTO `rtdb`.`Attachments` 
> VALUES  (179,455,178,'','',NULL,'text/plain','none'
> etc and then a mess of illedgable text.
> I am looking into upgrading to the latest version of RT but I don't 
> want to do this until I can back everything up correctly.
> Ideally I would like the attachments backed up though.
> If the attachment table can't be saved what will happen if I restore 
> this DB on top of a new installation ? will I just not be able to 
> browse the attachments or will this make it so we are unable to browse 
> the old tickets?
> I say this because the new RT will be running on a different machine 
> as this one is coming to the end of it's life unfortunatly.
> Thanks in advance!
> Andy
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Drew Barnes
Applications Analyst
Network Resources Department
Raymond Walters College
University of Cincinnati

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