我無法在Linux上啓動MySQL - 錯誤mysqld_safe

Question

我在網絡上的許多論壇中發現，但我沒有找到我的解決方案。 當我開始在Linux操作系統Ubuntu 12.04服務器服務的MySQL，我得到這個錯誤：

root@stroke:/# mysqld_safe & 
[1] 5789 
root@stroke:/# 131001 10:12:29 mysqld_safe Logging to syslog. 
131001 10:12:29 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql 
131001 10:12:29 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended 

我已經獲准到該文件夾​​的mysql，我也試着創建MySQL的root新密碼。但迄今爲止沒有任何工作。

感謝您的幫助。

一些信息：

root@stroke:/# /etc/init.d/mysql start 
Rather than invoking init scripts through /etc/init.d, use the service(8) 
utility, e.g. service mysql start 

Since the script you are attempting to invoke has been converted to an 
Upstart job, you may also use the start(8) utility, e.g. start mysql 
start: Job failed to start 

的/etc/mysql/my.cnf文件

# 
# 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 
# 
innodb_force_recovery = 4 
user   = mysql 
pid-file  = /var/run/mysqld/mysqld.pid 
socket   = /var/run/mysqld/mysqld.sock 
port   = 3306 
basedir   = /usr 
datadir   = /var/lib/mysql 
tmpdir   = /tmp 
lc-messages-dir = /usr/share/mysql 
#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   = 0.0.0.0 
# 
# * Fine Tuning 
# 
key_buffer    = 256M 
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  = 16M 
query_cache_size  = 48M 
# 
# * 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 
# 
# Error logging goes to syslog due to /etc/mysql/conf.d/mysqld_safe_syslog.cnf. 
# 
# 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/ 

Answer 1

MySQL正在它自己的用戶下工作，所以在根目錄下啓動它並不是一個明智的決定。現在，當您已經嘗試過某些文件可以由root擁有時，服務將無法啓動。

• 檢查具有MySQL數據庫的所有目錄是否由mysql用戶擁有。
• 嘗試通過upstart啓動服務：start mysql
• 在具有MySQL數據庫的目錄中檢查日誌文件。

Answer 2

是3306端口已在使用？嘗試：

netstat -an | grep 3306 

編輯：你是如何啓動MySQL？嘗試：

/etc/init.d/mysql start