mysql 無法啟動 unkown command

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1. https://serverfault.com/questions/490656/mysql-not-starting-error-usr-sbin-mysqld-unknown-option-query-cache-si

 

 

 

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I have a big problem.

i try to start mysql in ubuntu, butI have this error:

130323  0:13:55 [Note] Plugin ‘FEDERATED‘ is disabled.130323  0:13:55 InnoDB: The InnoDB memory heap is disabled130323  0:13:55 InnoDB: Mutexes and rw_locks use GCC atomic builtins130323  0:13:55 InnoDB: Compressed tables use zlib 1.2.3.4130323  0:13:55 InnoDB: Initializing buffer pool, size = 8.0G130323  0:13:55 InnoDB: Completed initialization of buffer pool130323  0:13:55 InnoDB: highest supported file format is Barracuda.130323  0:13:55  InnoDB: Waiting for the background threads to start130323  0:13:56 InnoDB: 1.1.8 started; log sequence number 1195255849922130323  0:13:56 [ERROR] /usr/sbin/mysqld: unknown option ‘--query_cache_size-128M‘130323  0:13:56 [ERROR] Aborting130323  0:13:56  InnoDB: Starting shutdown...130323  0:13:57  InnoDB: Shutdown completed; log sequence number 1195255849922130323  0:13:57 [Note] /usr/sbin/mysqld: Shutdown complete

This has no sense, because I dont use that in the 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            = 3306socket          = /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.socknice            = 0[mysqld]## * Basic Settings#user            = mysqlpid-file        = /var/run/mysqld/mysqld.pidsocket          = /var/run/mysqld/mysqld.sockport            = 3306basedir         = /usr#datadir                = /var/lib/mysqldatadir       = /home/mysqltmpdir          = /tmplc-messages-dir = /usr/share/mysqlskip-external-locking#innodb_force_recovery = 3## 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              = 500Mmax_allowed_packet      = 128Mthread_stack            = 192Kthread_cache_size       = 8default-storage-engine = INNODB# This replaces the startup script and checks MyISAM tables if needed# the first time they are touchedmyisam-recover         = BACKUPmax_connections        = 75sort_buffer_size = 4Mjoin_buffer_size = 4Mtable_cache            = 128K#thread_concurrency     = 10## * Query Cache Configuration#query_cache_limit       = 1Mquery_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.loglog-error=/var/log/mysql.err#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.logexpire_logs_days        = 10max_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.peminnodb_additional_mem_pool_size = 50Minnodb_thread_concurrency = 8innodb_flush_method = O_DSYNCinnodb_flush_log_at_trx_commit = 2innodb_buffer_pool_size = 8Ginnodb_log_files_in_group = 2innodb_log_file_size = 32Minnodb_log_buffer_size = 16Minnodb_file_per_table = 1innodb_table_locks = 0[mysqldump]quickquote-namesmax_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/

Any ideas? :(

mysqlshareimprove this questionasked Mar 22 ‘13 at 23:17poormysql21112

• 1Fix the typo. Then it should work. – Michael Hampton? Mar 22 ‘13 at 23:22
•  the typo is the minus sign where equals should be: query_cache_size-128M -> query_cache_size=128M – user16081-JoeT Mar 23 ‘13 at 0:13 

 

###########2.

問題描述】

使用

service mysqld start 

啟動MySQL服務失敗，提示

Starting MySQL. ERROR! The server quit without updating PID file

 

【解決方案】

在my.cnf設定檔中的 [mysqld_safe] 下添加

 log-error = /apps/logs/mysql/error.log      # 表示mysql服務開機記錄檔案的位置，路徑可以根據自己的系統更改

之後再次啟動mysql服務，查看error.log檔案，注意error標籤的提示內容，修改相應的錯誤

mysql 無法啟動 unkown command