无法启动
mysql：
sudo /usr/bin/MysqLd_safe --datadir=/srv/MysqL/myDB --log-error=/srv/MysqL/logs/MysqLd-myDB.log --pid-file=/srv/MysqL/pids/MysqLd-myDB.pid --user=MysqL --socket=/srv/MysqL/sockets/MysqL-myDB.sock --port=3700 120222 13:40:48 MysqLd_safe Starting MysqLd daemon with databases from /srv/MysqL/myDB 120222 13:40:54 MysqLd_safe MysqLd from pid file /srv/MysqL/pids/MysqLd-myDB.pid ended
/srv/MysqL/logs/MysqLd-myDB.log：
120222 13:43:53 MysqLd_safe Starting MysqLd daemon with databases from /srv/MysqL/myDB 120222 13:43:53 [Note] Plugin 'FEDERATED' is disabled. /usr/sbin/MysqLd: Table 'plugin' is read only 120222 13:43:53 [ERROR] Can't open the MysqL.plugin table. Please run MysqL_upgrade to create it. 120222 13:43:53 InnoDB: Completed initialization of buffer pool 120222 13:43:53 InnoDB: Started; log sequence number 32 4232720908 120222 13:43:53 [ERROR] Can't start server : Bind on unix socket: Permission denied 120222 13:43:53 [ERROR] Do you already have another MysqLd server running on socket: /srv/MysqL/sockets/MysqL-myDB.sock ? 120222 13:43:53 [ERROR] Aborting 120222 13:43:53 InnoDB: Starting shutdown...
$ps aux | grep MysqL MysqL 1093 0.0 0.2 169972 18700 ? Ssl 11:50 0:02 /usr/sbin/MysqLd $
港口3700可用：
$netstat -a | grep 3700 $
带套接字的目录为空：
$ls /srv/MysqL/sockets/ $
有所有权限：
$ls -l /srv/MysqL/ total 20 drwxrwxrwx 2 MysqL MysqL 4096 2012-02-22 13:28 logs drwxrwxrwx 13 MysqL MysqL 4096 2012-02-22 13:44 myDB drwxrwxrwx 2 MysqL MysqL 4096 2012-02-22 12:55 pids drwxrwxrwx 2 MysqL MysqL 4096 2012-02-22 12:55 sockets drwxrwxrwx 2 MysqL MysqL 4096 2012-02-22 13:25 version
Apparmor配置：
$cat /etc/apparmor.d/usr.sbin.MysqLd # vim:Syntax=apparmor # Last Modified: Tue Jun 19 17:37:30 2007 #include <tunables/global> /usr/sbin/MysqLd flags=(complain) { #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,/srv/MysqL/ r,/srv/MysqL/** rwk,/sys/devices/system/cpu/ r,# Site-specific additions and overrides. See local/README for details. #include <local/usr.sbin.MysqLd> }
有什么建议？
UPD1：
$touch /srv/MysqL/sockets/MysqL-myDB.sock $sudo chown MysqL:MysqL /srv/MysqL/sockets/MysqL-myDB.sock $ls -l /srv/MysqL/sockets/MysqL-myDB.sock -rw-rw-r-- 1 MysqL MysqL 0 2012-02-22 14:29 /srv/MysqL/sockets/MysqL-myDB.sock $sudo /usr/bin/MysqLd_safe --datadir=/srv/MysqL/myDB --log-error=/srv/MysqL/logs/MysqLd-myDB.log --pid-file=/srv/MysqL/pids/MysqLd-myDB.pid --user=MysqL --socket=/srv/MysqL/sockets/MysqL-myDB.sock --port=3700 120222 14:30:18 MysqLd_safe Can't log to error log and syslog at the same time. Remove all --log-error configuration options for --syslog to take effect. 120222 14:30:18 MysqLd_safe Logging to '/srv/MysqL/logs/MysqLd-myDB.log'. 120222 14:30:18 MysqLd_safe Starting MysqLd daemon with databases from /srv/MysqLmyDB 120222 14:30:24 MysqLd_safe MysqLd from pid file /srv/MysqL/pids/MysqLd-myDB.pid ended $ls -l /srv/MysqL/sockets/MysqL-myDB.sock ls: cannot access /srv/MysqL/sockets/MysqL-myDB.sock: No such file or directory $
UPD2：
$sudo netstat -lnp | grep MysqL tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 1093/MysqLd unix 2 [ ACC ] STREAM LISTENING 5912 1093/MysqLd /var/run/MysqLd/MysqLd.sock $sudo lsof | grep /srv/MysqL/sockets/MysqL-myDB.sock lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon file system /home/sears/.gvfs Output information may be incomplete.
UPD3：
$cat /etc/MysqL/my.cnf # # The MysqL database server configuration file. # # You can copy this to one of: # - "/etc/MysqL/my.cnf" to set global options,# - "~/.my.cnf" to set user-specific options. # # One can use all long options that the program supports. # Run program with --help to get a list of available options and with # --print-defaults to see which it would actually understand and use. # # For explanations see # http://dev.MysqL.com/doc/MysqL/en/server-system-variables.html # This will be passed to all MysqL clients # It has been reported that passwords should be enclosed with ticks/quotes # escpecially if they contain "#" chars... # Remember to edit /etc/MysqL/debian.cnf when changing the socket location. [client] port = 3306 socket = /var/run/MysqLd/MysqLd.sock # Here is entries for some specific programs # The following values assume you have at least 32M ram # This was formally kNown as [safe_MysqLd]. Both versions are currently parsed. [MysqLd_safe] socket = /var/run/MysqLd/MysqLd.sock nice = 0 [MysqLd] # # * Basic Settings # # # * IMPORTANT # If you make changes to these settings and your system uses apparmor,you may # also need to also adjust /etc/apparmor.d/usr.sbin.MysqLd. # user = MysqL socket = /var/run/MysqLd/MysqLd.sock port = 3306 basedir = /usr datadir = /var/lib/MysqL tmpdir = /tmp skip-external-locking # # Instead of skip-networking the default is Now to listen only on # localhost which is more compatible and is not less secure. #bind-address = 127.0.0.1 # # * Fine Tuning # key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 # This replaces the startup script and checks MyISAM tables if needed # the first time they are touched myisam-recover = BACKUP #max_connections = 100 #table_cache = 64 #thread_concurrency = 10 # # * Query Cache Configuration # query_cache_limit = 1M query_cache_size = 16M # # * Logging and Replication # # Both location gets rotated by the cronjob. # Be aware that this log type is a performance killer. # As of 5.1 you can enable the log at runtime! #general_log_file = /var/log/MysqL/MysqL.log #general_log = 1 log_error = /var/log/MysqL/error.log # Here you can see queries with especially long duration #log_slow_queries = /var/log/MysqL/MysqL-slow.log #long_query_time = 2 #log-queries-not-using-indexes # # The following can be used as easy to replay backup logs or for replication. # note: if you are setting up a replication slave,see README.Debian about # other settings you may need to change. #server-id = 1 #log_bin = /var/log/MysqL/MysqL-bin.log expire_logs_days = 10 max_binlog_size = 100M #binlog_do_db = include_database_name #binlog_ignore_db = include_database_name # # * InnoDB # # InnoDB is enabled by default with a 10MB datafile in /var/lib/MysqL/. # Read the manual for more InnoDB related options. There are many! # # * Security Features # # Read the manual,too,if you want chroot! # chroot = /var/lib/MysqL/ # # For generating SSL certificates I recommend the OpenSSL GUI "tinyca". # # ssl-ca=/etc/MysqL/cacert.pem # ssl-cert=/etc/MysqL/server-cert.pem # ssl-key=/etc/MysqL/server-key.pem [MysqLdump] quick quote-names max_allowed_packet = 16M [MysqL] #no-auto-rehash # faster start of MysqL but no tab completition [isamchk] key_buffer = 16M # # * IMPORTANT: Additional settings that can override those from this file! # The files must end with '.cnf',otherwise they'll be ignored. # !includedir /etc/MysqL/conf.d/
Can't start server : Bind on unix socket: Permission denied Do you already have another MysqLd server running on socket: /srv/MysqL/sockets/MysqL-myDB.sock ?
看起来像AppArmor是罪魁祸首.尝试改变这个：
/{,
至：
/srv/MysqL/pids/MysqLd-myDB.pid w,/srv/MysqL/sockets/MysqL-myDB.sock w,
原文地址：https://www.jb51.cc/ubuntu/347789.html
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