On 21/07/2020 10:38, Greg Woods wrote:
On Mon, Jul 20, 2020 at 5:43 PM Dmitri Maziuk <dmitri.maz...@gmail.com
<mailto:dmitri.maz...@gmail.com>> wrote:
On 7/20/2020 6:31 PM, Gary R. Schmidt wrote:
> On 21/07/2020 09:21, Greg Woods wrote:
>>
>> Has this always been the case?
> Yes.
>
Wow. I could swear I installed a backend-specific library RPM and
made a
symlink or something in the version we're using. It all must've been a
figment of my imagination I guess.
Maybe not, because I found the answer. I tried downgrading as I
suggested to myself above, but it didn't work. I was running the exact
same RPM packages for Bacula that I was running on my older system, and
it still complained that Bacula was compiled for Postgres.
It turns out that Fedora has this "alternatives" system. It defines, for
example, whether "/usr/bin/sendmail" will point to "sendmail" or
"postfix" for mail delivery. They have done this for Bacula too; there
is a library called "libbaccats.so" which is apparently linked to by
their Bacula binaries, and the alternatives system can be used to
determine whether this points to a MySQL, PostgreSQL, or SQLite3
version. I finally hit upon the right Google search words to find this:
https://src.fedoraproject.org/rpms/bacula . Since I have always run my
Director on a Fedora machine, this explains why I didn't realize Bacula
was designed to be hard-compiled for a single database backend.
After reading this, I knew that PostgreSQL is the default, but it can be
changed by running "alternatives --config libbaccats.so" and selecting
the MySQL option.
The alternatives system is quite slick as can be seen here; it's easy to
use one set of Bacula packages no matter which database you are using;
no separate package or compiling from source necessary. But it's not
always easy to figure out which things have "alternatives" and how to
use them. Worse still, it appears that I must have gone down this road
before, as even on my older system, Postgres is the default but it had
already been set to use MySQL. I really wish my Google search fu was
better, then I could have avoided all this.
Every day that you learn something new is a good day!
I had no idea that Fedora had anything like that - I've seen it on
Solaris - I will have to add it to my "things that you needed to know
before you broke that" list. :-)
Cheers,
Gary B-)
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