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From: Eric Valette <eric.valette@free.fr>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: mariadb-server: new version of mariadb server breaks wordpress
Message-ID: <178999829710.30854.11386091272933317659.reportbug@localhost>
X-Mailer: reportbug 13.2.0+nmu1
Date: Mon, 21 Sep 2026 15:44:57 +0200
Delivered-To: submit@bugs.debian.org

Package: mariadb-server
Version: 1:11.8.9+ds-3
Severity: important

Upgrading to this mariadb server breaks wordpress. I have the message
cannot connect to database while the site was previously working.

To fix I found two solutions:

1) replace localhost by 127.0.0.1 in the wordpress config
2) or create a link in /run :  ln -s mariadbd mysqld. Then restarting
apache makes the site works again.

I guess there are still things that use /run/mysql/mysqld.sock in wordpress...
Did not found were...

-- System Information:
Debian Release: forky/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'stable-security'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.18.52 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE
Locale: LANG=fr_FR.UTF8, LC_CTYPE=fr_FR.UTF8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages mariadb-server depends on:
ii  debconf [debconf-2.0]       1.5.92
ii  galera-4                    26.4.27-1
ii  gawk                        1:5.3.2-1
ii  iproute2                    7.2.0-1
ii  libc6                       2.44-1
ii  libdbi-perl                 1.653-1
ii  libgcc-s1                   16.2.0-3
ii  libpam0g                    1.7.0-8
ii  libssl3t64                  3.6.4-1
ii  libstdc++6                  16.2.0-3
ii  lsof                        4.99.4+dfsg-2
ii  mariadb-client              1:11.8.9+ds-3
ii  mariadb-common              1:11.8.9+ds-3
ii  mariadb-server-core         1:11.8.9+ds-3
ii  passwd                      1:4.19.3-2
ii  perl                        5.42.3-1
ii  procps                      2:4.0.7-1
ii  psmisc                      23.7-2
ii  rsync                       3.5.0+ds1-3
ii  socat                       1.8.1.3-2
ii  systemd [systemd-sysusers]  262~rc3-1
ii  zlib1g                      1:1.3.dfsg+really1.3.2-3

Versions of packages mariadb-server recommends:
ii  libhtml-template-perl           2.97-2
ii  mariadb-plugin-provider-bzip2   1:11.8.9+ds-3
ii  mariadb-plugin-provider-lz4     1:11.8.9+ds-3
ii  mariadb-plugin-provider-lzma    1:11.8.9+ds-3
ii  mariadb-plugin-provider-lzo     1:11.8.9+ds-3
ii  mariadb-plugin-provider-snappy  1:11.8.9+ds-3
ii  pv                              1.12.0-1

Versions of packages mariadb-server suggests:
pn  mariadb-test    <none>
ii  netcat-openbsd  1.238-1

-- debconf information excluded
]