[debian-mysql] Bug#878421: mariadb-server-10.0: packages depending on mariadb-server starts before mariadb-server fully loaded

[b4456 at bell.net]

Package: mariadb-server-10.0
Version: 10.0.32-0+deb8u1
Severity: normal

Dear Maintainer,

Not sure whether it's the proper place to report this but anyway, let's go.

I've been using linux since v 0.93 and I'm used to the init.d script system.

The new service system since debian 7 or 8, I'm a total newbie and don't understand it fully.
All I know is that it starts deamons in parallel instead of one after another.

The problem I have is that nginx, apache, mythserver, exim among others rely on mysql
and require that mysql (mariadb-server here) is fully loaded and running before those
packages are even started.

That is not the case.  Each one reports errors mysql related until mariadb-server is finally
completely ready.

How could I remedy to that once and for all?

Still using debian 8 BTW.  Past experiences with Debian upgrades always break exim, samba,
dovecot among others which requires a lot of time to fix.

-- System Information:
Debian Release: 8.9
  APT prefers oldstable-updates
  APT policy: (990, 'oldstable-updates'), (990, 'oldstable'), (500, 'oldoldstable-updates')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/6 CPU cores)
Locale: LANG=fr_CA.UTF-8, LC_CTYPE=fr_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages mariadb-server-10.0 depends on:
ii  adduser                   3.113+nmu3
ii  debconf [debconf-2.0]     1.5.56+deb8u1
ii  libaio1                   0.3.110-1
ii  libc6                     2.19-18+deb8u10
ii  libdbi-perl               1.631-3+b1
ii  libpam0g                  1.1.8-3.1+deb8u2+b1
ii  libstdc++6                4.9.2-10
ii  lsb-base                  4.1+Debian13+nmu1
ii  mariadb-client-10.0       10.0.32-0+deb8u1
ii  mariadb-common            10.0.32-0+deb8u1
ii  mariadb-server-core-10.0  10.0.32-0+deb8u1
ii  passwd                    1:4.2-3+deb8u4
ii  perl                      5.20.2-3+deb8u9
ii  psmisc                    22.21-2
ii  zlib1g                    1:1.2.8.dfsg-2+b1

Versions of packages mariadb-server-10.0 recommends:
ii  libhtml-template-perl  2.95-1

Versions of packages mariadb-server-10.0 suggests:
ii  bsd-mailx [mailx]  8.1.2-0.20141216cvs-2
ii  mariadb-test       10.0.32-0+deb8u1
pn  tinyca             <none>

-- debconf information:
  mysql-server/password_mismatch:
  mariadb-server-10.0/really_downgrade: false
* mariadb-server/oneway_migration: true
  mysql-server/no_upgrade_when_using_ndb:
  mysql-server-10.0/nis_warning:
  mysql-server-10.0/postrm_remove_databases: false
* mysql-server/error_setting_password: