Yes, still exhibits this problem -- although at a different line in the file. (Seems
random.) I should also mention, the backup is running across a local network. The machine
the starts automysqlbackup (and internally, mysqldump) connects over TCP/IP to the
database server. I am going to try running mysqldump on the database server itself, but
it's not something I can do during normal hours -- plus at 10GB, it's a time-consuming
thing to test. (Would it matter? I guess I need to find out.)
In any case, it seems clear that during the dump, mysqldump is periodically adding a
character to the dump file.
On 2009-11-20, at 12:41 PM, Gavin Towey wrote:
> Have you tried dumping that table manually using mysqldump on the command line to
> confirm it's not an issue with automysqlbackup?
>
> Regards,
> Gavin Towey
>
> -----Original Message-----
> From: René Fournier [mailto:m5@stripped]
> Sent: Friday, November 20, 2009 8:31 AM
> To: mysql
> Subject: Strange problem with mysqldump / automysqlbackup (ERROR 1300)
>
> I've been using automysqlbackup 2.5 for years on a particular database, and it's
> always performed great. Recently, however, I've become encountering problems when trying
> to re-import one of its dumped sql files. (Not sure if it matters, but the database file
> in question is large and growing -- about 10GB. The other databases automysqlbackup backs
> up are fine.)
>
> Basically on the import, MySQL fails and returns an error indicating a problem with
> the dump file:
>
> mysql -u root -p < dump_file.sql (~10GB)
> Enter password:
> ERROR 1300 (HY000) at line 426: Invalid utf8 character string: '?03422'
>
> Sure enough, I look at the line in dump_file.sql, which should contain two unsigned
> ints, and two unsigned small ints:
>
> [...],(32562206,1228?03422,1641,135),[...]
>
> And yup, there's a question mark in the middle of the second unsigned int, for some
> strange reason. Not in any of the other rows in that statement. When I look at the
> existing database from which the dump file was made, that row is fine:
>
> mysql> SELECT * FROM bandwidth WHERE id = 32562206;
> +----------+------------+-----------+-------+
> | id | time_sec | device_id | bytes |
> +----------+------------+-----------+-------+
> | 32562206 | 1228803422 | 1641 | 135 |
> +----------+------------+-----------+-------+
> 1 row in set (0.00 sec)
>
>
> So... It appears either mysqldump and/or automysqlbackup is having a problem dumping
> a true copy of the database.
>
> Anyone else run into this sort of thing? Any suggestions? Thanks.
>
> ...Rene
>
> The information contained in this transmission may contain privileged and
> confidential information. It is intended only for the use of the person(s) named above. If
> you are not the intended recipient, you are hereby notified that any review,
> dissemination, distribution or duplication of this communication is strictly prohibited.
> If you are not the intended recipient, please contact the sender by reply email and
> destroy all copies of the original message.
