maria-discuss team mailing list archive

[Michal Schorm <mschorm@xxxxxxxxxx>]

Thanks for the reply,

On Wed, Jun 6, 2018 at 2:20 PM, Guillaume Lefranc <guillaume@xxxxxxxxxxxx>
wrote:

> Also mysqldump can't be used for upgrade to 10.3, which is IMHO frequently
> used.
>
Where have you seen that claim? I've imported dumps to 10.3 without
particular issues.

https://mariadb.com/kb/en/library/upgrading-from-mariadb-102-to-mariadb-103/#mysqldump

--

Michal Schorm
Associate Software Engineer
Core Services - Databases Team
Red Hat

On Wed, Jun 6, 2018 at 2:20 PM, Guillaume Lefranc <guillaume@xxxxxxxxxxxx>
wrote:

> Hi Michal,
>
> Le mer. 6 juin 2018 à 12:02, Michal Schorm <mschorm@xxxxxxxxxx> a écrit :
>
>> Hello,
>>
>> MariaDB changed its release cycle to 1 major version / year.
>> However the upgrades remained supported only from one major version to
>> the very next.
>>
>> What's the definition of the term "supported" here? I've never seen such
> a claim elsewhere. Maybe 1 major version to next are "recommended", but
> even in some upgrades you can find breaking changes.
>
> I see a raise of users (of RH products - RHEL and RHSCL mainly) that would
>> like to jump several versions.
>> They had an application build on, let's say, 5.5 (RHEL7 default) and
>> would like to get the features from 10.2 (available in RH software
>> collections - we provide plenty of versions this way).
>> So far, they have to upgrade one by one 5.5->10.0->10.1->10.2; and solve
>> the conflicts at each stage.
>>
> That's a waste of time. Such an upgrade is perfectly possible through the
> means of mysqldump and reload. In-place upgrades might cause some issues
> because of innodb version changes, but for example, from 10.0 to 10.1, they
> are rarely an issue because the version of InnoDB hasn't changed. The
> recommended upgrade path from any version is always the same e.g. dump and
> reload.
>
>
>>
>> Lately, we discontinued support fo 10.0 in RHSCL, which means, the
>> upgrade path metioned above won't be as easy anymore.
>> Also mysqldump can't be used for upgrade to 10.3, which is IMHO
>> frequently used.
>>
> Where have you seen that claim? I've imported dumps to 10.3 without
> particular issues.
>
> --
> Guillaume Lefranc
> Signal 18 Consulting
>