Re: [Bacula-devel] mysql version

[Kern S. <ke...@si...>]

On Sunday 13 February 2011 12.00:37 rst wrote:
> Thank you  for your  prompt reply.  I'll try to  answer both  Kern and
> Randy in this message.
>
> To Kern:
>
>     I thought bacula is developed for some specific version of mysql
>     and changing it could be very risky.

That was the case 10 years ago, but since 5-6 years, both MySQL and PostgreSQL 
have been very stable for the features Bacula uses.  We seldom find problems.

What you are speaking about below (version 4.1.22...) for us are rather old 
versions -- I don't think they are even supported by MySQL any more.

Regards,

Kern

>
>
> To Randy:
>
>
>     There are the following two types of incompatible changes:
>
>         1) "controlled"  incompatible changes introduced  by the mylql
>            software development  team. I want to  provide two examples
>            here:
>
>                a) Some changes in version 4.1.23 are incompatible with
>                   the 4.1.22 version of MySQL.
>
>                http://dev.mysql.com/doc/refman/4.1/en/news-4-1-23.html
>
>                b) Some  changes in  version 4.1.13 are  not compatible
>                   with 4.1.12
>
>                http://dev.mysql.com/doc/refman/4.1/en/news-4-1-13.html
>
>         2) This case is rare but not unusual and thus it must be taken
>            into account in case you need high reliability.
>
>            There   are  incompatible  changes   created  due   to  bug
>            corrections. Let's  assume a feature F of  mysql works well
>            but it  has some  bug that manifests  in a  predictible and
>            known manner.  Bacula (or  another potential user) of F can
>            decide  to use  the feature  by learning  how to  avoid the
>            drawbacks introduced  by the bug.   In this such  case, the
>            way  bacula uses  the feature  F is  dependent on  the bug.
>            Thus, correcting the bug may be not a benefit for bacula.