| Dir : /lib/systemd/system/ |
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| Dir : //lib/systemd/system/mysql.service |
# It's not recommended to modify this file in-place, because it will be # overwritten during package upgrades. If you want to customize, the # best way is to create a file "/etc/systemd/system/mariadb.service", # containing # .include /usr/lib/systemd/system/mariadb.service # ...make your changes here... # or create a file "/etc/systemd/system/mariadb.service.d/foo.conf", # which doesn't need to include ".include" call and which will be parsed # after the file mariadb.service itself is parsed. # # For more info about custom unit files, see systemd.unit(5) or # https://mariadb.com/kb/en/mariadb/systemd/ # # Copyright notice: # # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. [Unit] Description=MariaDB 10.6.20 database server Documentation=man:mariadbd(8) Documentation=https://mariadb.com/kb/en/library/systemd/ After=network.target [Install] WantedBy=multi-user.target [Service] ############################################################################## ## Core requirements ## Type=notify # Setting this to true can break replication and the Type=notify settings # See also bind-address mariadbd option. PrivateNetwork=false ############################################################################## ## Package maintainers ## User=mysql Group=mysql # CAP_IPC_LOCK To allow memlock to be used as non-root user # CAP_DAC_OVERRIDE To allow auth_pam_tool (which is SUID root) to read /etc/shadow when it's chmod 0 # does nothing for non-root, not needed if /etc/shadow is u+r # CAP_AUDIT_WRITE auth_pam_tool needs it on Debian for whatever reason AmbientCapabilities=CAP_IPC_LOCK CAP_DAC_OVERRIDE CAP_AUDIT_WRITE # PrivateDevices=true implies NoNewPrivileges=true and # SUID auth_pam_tool suddenly doesn't do setuid anymore PrivateDevices=false # Prevent writes to /usr, /boot, and /etc ProtectSystem=full # Doesn't yet work properly with SELinux enabled # NoNewPrivileges=true # Prevent accessing /home, /root and /run/user ProtectHome=true # Execute pre and post scripts as root, otherwise it does it as User= PermissionsStartOnly=true # Perform automatic wsrep recovery. When server is started without wsrep, # galera_recovery simply returns an empty string. In any case, however, # the script is not expected to return with a non-zero status. # It is always safe to unset _WSREP_START_POSITION environment variable. # Do not panic if galera_recovery script is not available. (MDEV-10538) ExecStartPre=/bin/sh -c "systemctl unset-environment _WSREP_START_POSITION" ExecStartPre=/bin/sh -c "[ ! -e /usr/bin/galera_recovery ] && VAR= || \ VAR=`/usr/bin/galera_recovery`; [ $? -eq 0 ] \ && systemctl set-environment _WSREP_START_POSITION=$VAR || exit 1" # Needed to create system tables etc. # ExecStartPre=/usr/bin/mysql_install_db -u mysql # Start main service # MYSQLD_OPTS here is for users to set in /etc/systemd/system/mariadb.service.d/MY_SPECIAL.conf # Use the [Service] section and Environment="MYSQLD_OPTS=...". # This isn't a replacement for my.cnf. # _WSREP_NEW_CLUSTER is for the exclusive use of the script galera_new_cluster ExecStart=/usr/sbin/mariadbd $MYSQLD_OPTS $_WSREP_NEW_CLUSTER $_WSREP_START_POSITION # Unset _WSREP_START_POSITION environment variable. ExecStartPost=/bin/sh -c "systemctl unset-environment _WSREP_START_POSITION" KillSignal=SIGTERM # Don't want to see an automated SIGKILL ever SendSIGKILL=no # Restart crashed server only, on-failure would also restart, for example, when # my.cnf contains unknown option Restart=on-abort RestartSec=5s UMask=007 ############################################################################## ## USERs can override ## ## ## by creating a file in /etc/systemd/system/mariadb.service.d/MY_SPECIAL.conf ## and adding/setting the following under [Service] will override this file's ## settings. # Useful options not previously available in [mysqld_safe] # Kernels like killing mariadbd when out of memory because its big. # Lets temper that preference a little. # OOMScoreAdjust=-600 # Explicitly start with high IO priority # BlockIOWeight=1000 # If you don't use the /tmp directory for SELECT ... OUTFILE and # LOAD DATA INFILE you can enable PrivateTmp=true for a little more security. PrivateTmp=false # Set an explicit Start and Stop timeout of 900 seconds (15 minutes!) # this is the same value as used in SysV init scripts in the past # Galera might need a longer timeout, check the KB if you want to change this: # https://mariadb.com/kb/en/library/systemd/#configuring-the-systemd-service-timeout TimeoutStartSec=900 TimeoutStopSec=900 # Set the maximium number of tasks (threads) to 99% of what the system can # handle as set by the kernel, reserve the 1% for a remote ssh connection, # some monitoring, or that backup cron job. Without the directive this would # be 15% (see DefaultTasksMax in systemd man pages). TasksMax=99% ## ## Options previously available to be set via [mysqld_safe] ## that now needs to be set by systemd config files as mysqld_safe ## isn't executed. ## # Number of files limit. previously [mysqld_safe] open-files-limit LimitNOFILE=32768 # Maximium core size. previously [mysqld_safe] core-file-size # LimitCore= # Nice priority. previously [mysqld_safe] nice # Nice=-5 # Timezone. previously [mysqld_safe] timezone # Environment="TZ=UTC" # Library substitutions. previously [mysqld_safe] malloc-lib with explicit paths # (in LD_LIBRARY_PATH) and library name (in LD_PRELOAD). # Environment="LD_LIBRARY_PATH=/path1 /path2" "LD_PRELOAD= # Flush caches. previously [mysqld_safe] flush-caches=1 # ExecStartPre=sync # ExecStartPre=sysctl -q -w vm.drop_caches=3 # numa-interleave=1 equalivant # Change ExecStart=numactl --interleave=all /usr/sbin/mariadbd...... # crash-script equalivent # FailureAction=