Details
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Bug
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Status: Closed (View Workflow)
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Minor
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Resolution: Fixed
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5.5.34-galera, 5.5.34
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Debian/Ubuntu
Description
The init scripts for debian and ubuntu rely on a special user:
'debian-sys-maint'@'localhost'
MYADMIN="/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf"
It has three tasks:
1. Doing some local checks starting the mysqld.
2. Some fancy status reporting.
3. As mysqladmin is used to shutdown, the user is used to shutdown the mysqld.
The problem with this approach is the credentials has to be stored disjunct in the filesystem (/etc/init.d/debian.cnf). So everytime the data in the schema changes you got to fix it in the configfile.
So at least when you i.e.
- Create a slave from a master dump
- After an (initial) SST in Galera
When you miss this, the most important thing is, you are not going to stop the mysqld.
This is some kind of silly, as you don't even need mysqladmin to stop mysqld, as SIGTERM is sufficient.
Attachments
Issue Links
- is part of
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- Closed
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Activity
Issued this during upgrade 10.0.6 to 10.0.7 twice out of few dozen instances
Manual fix http://mirzmaster.wordpress.com/2009/01/16/mysql-access-denied-for-user-debian-sys-maintlocalhost/ after this "apt-get install -f" can proceed
A warning is better than nothing. I tried to push the debian.cnf into the datadir however the wsrep_sst_rsync is quite fussy about what it copies.
--- mysql-new 2014-03-04 01:17:18.000000000 +0000
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+++ /etc/init.d/mysql 2014-03-04 02:59:48.000000000 +0000
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@@ -108,6 +108,22 @@
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# Start MariaDB!
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/usr/bin/mysqld_safe "${@:2}" > /dev/null 2>&1 &
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+ sst_transfer=0
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+ sst_progress_file=`mysqld_get_param datadir`/sst_in_progress
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+ if [ -x "$sst_progress_file" ]; then
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+ sst_transfer=1
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+ log_daemon_msg "SST of MariaDB database server in progress" "mysqld"
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+ for i in $(seq 1 "${MYSQLD_SST_TIMEOUT:-30}"); do
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+ sleep 1
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+ if [ ! -x "$sst_progress_file" ]; then
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+ break;
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+ fi
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+ log_progress_msg "."
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+ done
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+ fi
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+ if [ $sst_transfer == 1 ]; then
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+ log_warning_msg "$0: WARNING: SST occured. Ensure /etc/mysql/debian.cnf is updated from a Galera cluster member"
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+ fi
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# 6s was reported in #352070 to be too few when using ndbcluster
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for i in $(seq 1 "${MYSQLD_STARTUP_TIMEOUT:-30}"); do
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sleep 1
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otto,
Are you planning to make any radical changes around this debian-sys-maint user, or should we just apply the suggested warnings?
elenst Yes, the whole debian-sys-maint user will be abandoned as we have transitioned to unix socket auth by default in Debian Sid.
Unix socket authentication has been default in upstream MariaDB.org Debian packaging since the release of 10.4, so this issue is thus fixed, as everything works via the root/mysql user now with unix socket authentication and the custom debian-sys-maint user is deprecated (although on upgrades of all installs it still works).
Hehe ok, this is related to https://mariadb.atlassian.net/browse/MDEV-703.
There is at least code to shutdown mysql but never touched.