Re: migration of mysql to new server: wired errors

[Quoted] On Wednesday, January 31, 2018 at 8:31:51 AM UTC-6, Jerry Stuckle wrote:
> On 1/30/2018 11:23 PM, Julianony M wrote:
> > On Tuesday, January 30, 2018 at 9:46:16 PM UTC-6, Jerry Stuckle wrote:
> >> On 1/30/2018 4:55 PM, Julianony M wrote:
> >>> I have recently migrated several databases from MySQL-5.0.95 on a RedHat-6 server to MySQL-5.6.39 on a RedHat-7 server, along with their perl applications.
> >>>
> >>> While everything works just fine on the old server, it encounters problems on the new server when I perform the same database load:
> >>>
> >>> ERROR 1071 (42000) at line 383:
> >>> Specified key was too long; max key length is 767 bytes
> >>>
> >>> although the same data, same scripts works just fine on the old server.
> >>>
> >>> Could anyone suggest possible causes or spots to look at for a fix? A simple comparisons of /etc/my.ini from the two servers didn't give me much clue.
> >>>
> >>> Thanks in advance!
> >>>
> >>> j
> >>>
> >>>
> >>
> >> How did you transfer your databases from the old to the new server?
> >>
> >> To start with I would show the table definitions (SHOW CREATE TABLE ...)
> >> from the old and the new databases and compare the two. If that doesn't
> >> help, post both CREATE TABLE statements here along with sample data (2-3
> >> rows should be sufficient) here. The failing SQL statement would also
> >> help. We can then try to duplicate your problem. It's hard to
> >> troubleshoot something like this remotely.
> >
> > I did the database migration with 'mysqldump' into flat sql files on the old server; copy it to the new server; run mysql < sql file to set tables up.
> >
> > On a number of tables I compared, SHOW CREATE TABLE results from both servers are identical. They are all "ENGINE=MyISAM DEFAULT CHARSET=latin1". (I hope this also answered Natural Philosopher's question - they are not InnodB).
> >
> > Thank you both for taking your time to help.
> >
> > j
> >
>
> OK, so what does the failing CREATE TABLE statement look like?

[Quoted] [Quoted] Sorry it took me a little while -- this is an active server with many live databases my initial capture simply included many irrelavent events. Finally I found a time window to turn others off for this test.

I put the log in a Google DOC since it's very log: https://docs.google.com/document/d/1oWD_ksZIacNUc6Zuzawo0Op-9fUkxP_BzNGeIxrMjRY/edit?usp=sharing I cannot comprehend much of it. Your charp eyes and advice please? :)

j Received on Sun Feb 04 2018 - 03:46:58 CET