Hi, Jeff!

The only issue that comes to my mind is
https://jira.mariadb.org/browse/MDEV-21211

It's work-in-progress and hopefully will be fixed in the next release.

On May 26, Jeff Dyke wrote:
> Sorry to anyone that is just catching up, the TLDR is migrated a set of
> servers to 10.4 from 10.3 they would not start up, even after migrating
> them to 10.4 b/c of the `plugin_load_add`.  I just want to know why.
>
> On Tue, May 26, 2020 at 6:44 PM Jeff Dyke <jeff.dyke@gmail.com> wrote:
>
> > I want to resurrect this.  b/c i have found what i see to be the broken
> > bit of code/configuration.  If i don't include the following the commented
> > out portion everything starts up.
> > -- Starts --
> > /etc/mysql/conf.conf.d/100_sqlerr.log
> > [mysqld]
> >   #plugin_load_add = sql_errlog
> >   sql_error_log=ON
> >   sql_error_log_rotate=1
> >   sql_error_log_size_limit=100000000
> >
> > so if i remove the comment for "plugin_log_add" to run the server never
> > starts.  I will produce a reproduce case, but can someone explain why this
> > would not start if i added a plugin that was already added.
> >
> > This journey sucked, but i learned a lot, even though i've been  using
> > mysql since 3.X  Is there different syntax for 10.4.  Should i just add it
> > to start up args? and then add the variables after it starts.  This worked
> > in 10.3.
> >
> > Thanks all!
> >
Regards,
Sergei
VP of MariaDB Server Engineering
and security@mariadb.org