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Mokus
Asked: 2012-08-15 04:34:20 +0800 CST

Unable to start mysql server after update

  • 772

Today I updated the system, and I cant start the mysql server:

I'm getting the following error:

Aug 14 14:32:09 VULTURUS kernel: [ 1996.413190] init: mysql main process (14122) terminated with status 1
Aug 14 14:32:09 VULTURUS kernel: [ 1996.413262] init: mysql main process ended, respawning
Aug 14 14:32:10 VULTURUS kernel: [ 1997.373479] init: mysql post-start process (14123) terminated with status 1
Aug 14 14:32:10 VULTURUS kernel: [ 1997.391012] type=1400 audit(1344947530.964:242): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=14156 comm="apparmor_parser"
Aug 14 14:32:11 VULTURUS kernel: [ 1997.453824] type=1400 audit(1344947531.028:243): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/mysqld" name="/media/WESYS_DATA/MySql_LX/" pid=14160 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=115 ouid=0
Aug 14 14:32:11 VULTURUS kernel: [ 1997.456707] init: mysql main process (14160) terminated with status 1
Aug 14 14:32:11 VULTURUS kernel: [ 1997.456775] init: mysql respawning too fast, stopped

But I already added the exception in the /etc/apparmor.d/usr.sbin.mysqld 

# vim:syntax=apparmor
# Last Modified: Tue Jun 19 17:37:30 2007
#include <tunables/global>

/usr/sbin/mysqld {
  #include <abstractions/base>
  #include <abstractions/nameservice>
  #include <abstractions/user-tmp>
  #include <abstractions/mysql>
  #include <abstractions/winbind>

  capability dac_override,
  capability sys_resource,
  capability setgid,
  capability setuid,

  network tcp,

  /etc/hosts.allow r,
  /etc/hosts.deny r,

  /etc/mysql/*.pem r,
  /etc/mysql/conf.d/ r,
  /etc/mysql/conf.d/* r,
  /etc/mysql/*.cnf r,
  /usr/lib/mysql/plugin/ r,
  /usr/lib/mysql/plugin/*.so* mr,
  /usr/sbin/mysqld mr,
  /usr/share/mysql/** r,
  /var/log/mysql.log rw,
  /var/log/mysql.err rw,
  /var/lib/mysql/ r,
  /var/lib/mysql/** rwk,
  /var/log/mysql/ r,
  /var/log/mysql/* rw,
  /var/run/mysqld/mysqld.pid w,
  /var/run/mysqld/mysqld.sock w,
  /run/mysqld/mysqld.pid w,
  /run/mysqld/mysqld.sock w,

  /sys/devices/system/cpu/ r,

  /media/WESYS_DATA/MySql_LX/** rwk,
  /media/WESYS_DATA/MySql_LX/** rwk,

  # Site-specific additions and overrides. See local/README for details.
  #include <local/usr.sbin.mysqld>
}
mysql

4 Answers

  1. Best Answer

    The following two lines in the /etc/apparmor.d/usr.sbin.mysqld overlap. 

    /media/WESYS_DATA/MySql_LX/** rwk,
/media/WESYS_DATA/MySql_LX/** rwk,

    When you replace these lines to the below lines, your problem may be solved.

    /media/WESYS_DATA/MySql_LX/ r,
/media/WESYS_DATA/MySql_LX/** rwk,
    • 6

  2. In my case, the message: 

    mysql respawning too fast

    I found in the syslog that this was there because I had done a remove of apparmor, but had forgotten to restart my server.

    After a reboot of my server, mysql started fine.

    • 1

  3. In my case during Ubuntu update from 11.04 to 11.10 endless cycle occurred (and installation did not go on):

    Sep 24 21:50:05 soft kernel: [ 4926.795768] type=1400 audit(1380048605.174:160):     apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=10215    comm="apparmor_parser"
Sep 24 21:50:05 soft kernel: [ 4926.954977] type=1400 audit(1380048605.334:161): apparmor="DENIED" operation="mknod" parent=1 profile="/usr/sbin/mysqld" name="/srv/mysql/soft.lower-test" pid=10219 comm="mysqld" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
Sep 24 21:50:05 soft kernel: [ 4926.955011] type=1400 audit(1380048605.334:162): apparmor="DENIED" operation="mknod" parent=1 profile="/usr/sbin/mysqld" name="/srv/mysql/soft.lower-test" pid=10219 comm="mysqld" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
Sep 24 21:50:05 soft kernel: [ 4927.043602] type=1400 audit(1380048605.424:163): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/mysqld" name="/srv/mysql/mysql/plugin.frm" pid=10219 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=102 ouid=102
Sep 24 21:50:05 soft kernel: [ 4927.087869] type=1400 audit(1380048605.464:164): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/mysqld" name="/srv/mysql/ibdata1" pid=10219 comm="mysqld" requested_mask="rw" denied_mask="rw" fsuid=102 ouid=102
Sep 24 21:50:05 soft init: mysql main process (10219) terminated with status 1

    Solution: I logged in in separate window and

    sudo /etc/init.d/mysql stop
sudo /etc/init.d/mysql start

    Then followed syslog and noticed that install continued normallly.

    • 0

  4. I've got the error, after enabling queries slow-log. It turns out, variable name from mysqld.conf template has changed from log_slow_queries, and now it should be

    slow-query-log-file = /var/log...

    Thanks to https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1610765/comments/35

    • 0