mysqlサーバーを起動できません

Question

サーバーからWebサイトを実行しようとしているので、php、Apache、およびmysqlをインストールしました。

Mysqlに問題があります。インストール後、再起動に失敗しました。

これは出力です：

root@ns213360:/etc/mysql# /etc/init.d/mysql start ; tail -n 50 /var/log/syslog [FAIL] Starting MySQL database server: mysqld . . . . . . . . . . . . . . failed! Apr 3 09:27:22 ns213360 mysqld: 140403 9:27:22 InnoDB: Using Linux native AIO Apr 3 09:27:22 ns213360 mysqld: 140403 9:27:22 InnoDB: Initializing buffer pool, size = 128.0M Apr 3 09:27:22 ns213360 mysqld: 140403 9:27:22 InnoDB: Completed initialization of buffer pool Apr 3 09:27:22 ns213360 mysqld: 140403 9:27:22 InnoDB: highest supported file format is Barracuda. Apr 3 09:27:22 ns213360 mysqld: 140403 9:27:22 InnoDB: Waiting for the background threads to start Apr 3 09:27:23 ns213360 mysqld: 140403 9:27:23 InnoDB: 5.5.35 started; log sequence number 1595685 Apr 3 09:27:23 ns213360 mysqld: 140403 9:27:23 [ERROR] /usr/sbin/mysqld: unknown variable 'default-character-set=utf8' Apr 3 09:27:23 ns213360 mysqld: 140403 9:27:23 [ERROR] Aborting Apr 3 09:27:23 ns213360 mysqld: Apr 3 09:27:23 ns213360 mysqld: 140403 9:27:23 InnoDB: Starting shutdown... Apr 3 09:27:24 ns213360 mysqld: 140403 9:27:24 InnoDB: Shutdown completed; log sequence number 1595685 Apr 3 09:27:24 ns213360 mysqld: 140403 9:27:24 [Note] /usr/sbin/mysqld: Arrêt du serveur terminé Apr 3 09:27:24 ns213360 mysqld: Apr 3 09:27:24 ns213360 mysqld_safe: mysqld from pid file /var/run/mysqld/mysqld.pid ended Apr 3 09:27:36 ns213360 /etc/init.d/mysql[24960]: 0 processes alive and '/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf ping' resulted in Apr 3 09:27:36 ns213360 /etc/init.d/mysql[24960]: #007/usr/bin/mysqladmin: connect to server at 'localhost' failed Apr 3 09:27:36 ns213360 /etc/init.d/mysql[24960]: error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' Apr 3 09:27:36 ns213360 /etc/init.d/mysql[24960]: Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists! Apr 3 09:27:36 ns213360 /etc/init.d/mysql[24960]: Apr 3 09:28:01 ns213360 /USR/SBIN/CRON[24980]: (root) CMD (/usr/local/rtm/bin/rtm 40 > /dev/null 2> /dev/null) Apr 3 09:29:01 ns213360 /USR/SBIN/CRON[25025]: (root) CMD (/usr/local/rtm/bin/rtm 40 > /dev/null 2> /dev/null) Apr 3 09:29:19 ns213360 mysqld_safe: Starting mysqld daemon with databases from /var/lib/mysql Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 [Warning] Using unique option prefix key_buffer instead of key_buffer_size is deprecated and will be removed in a future release. Please use the full name instead. Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 [Warning] The syntax '--log-slow-queries' is deprecated and will be removed in a future release. Please use '--slow-query-log'/'--slow-query-log-file' instead. Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 [ERROR] An old style --language value with language specific part detected: /usr/share/mysql/french/ Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 [ERROR] Use --lc-messages-dir without language specific part instead. Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead. Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 [Note] Plugin 'FEDERATED' is disabled. Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 InnoDB: The InnoDB memory heap is disabled Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 InnoDB: Mutexes and rw_locks use GCC atomic builtins Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 InnoDB: Compressed tables use zlib 1.2.7 Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 InnoDB: Using Linux native AIO Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 InnoDB: Initializing buffer pool, size = 128.0M Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 InnoDB: Completed initialization of buffer pool Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 InnoDB: highest supported file format is Barracuda. Apr 3 09:29:19 ns213360 mysqld: 140403 9:29:19 InnoDB: Waiting for the background threads to start Apr 3 09:29:20 ns213360 mysqld: 140403 9:29:20 InnoDB: 5.5.35 started; log sequence number 1595685 Apr 3 09:29:20 ns213360 mysqld: 140403 9:29:20 [ERROR] /usr/sbin/mysqld: unknown variable 'default-character-set=utf8' Apr 3 09:29:20 ns213360 mysqld: 140403 9:29:20 [ERROR] Aborting Apr 3 09:29:20 ns213360 mysqld: Apr 3 09:29:20 ns213360 mysqld: 140403 9:29:20 InnoDB: Starting shutdown... Apr 3 09:29:21 ns213360 mysqld: 140403 9:29:21 InnoDB: Shutdown completed; log sequence number 1595685 Apr 3 09:29:21 ns213360 mysqld: 140403 9:29:21 [Note] /usr/sbin/mysqld: Arrêt du serveur terminé Apr 3 09:29:21 ns213360 mysqld: Apr 3 09:29:21 ns213360 mysqld_safe: mysqld from pid file /var/run/mysqld/mysqld.pid ended Apr 3 09:29:33 ns213360 /etc/init.d/mysql[25685]: 0 processes alive and '/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf ping' resulted in Apr 3 09:29:33 ns213360 /etc/init.d/mysql[25685]: #007/usr/bin/mysqladmin: connect to server at 'localhost' failed Apr 3 09:29:33 ns213360 /etc/init.d/mysql[25685]: error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' Apr 3 09:29:33 ns213360 /etc/init.d/mysql[25685]: Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists! Apr 3 09:29:33 ns213360 /etc/init.d/mysql[25685]:

Benoit · Accepted Answer

ログによると、変数にエラーがあります：unknown variable 'default-character-set=utf8'

default-character-setは、サーバーではなくクライアントに使用される変数です。

/etc/mysql/my.cnfファイルに次の行があると思われます

default-character-set = utf8

セクション[mysqld]または[mysql]の代わりにセクション[client]で。

デフォルトでUTF8文字セットを使用してサーバーを実行する場合は、my.cnfファイルに

文字セットサーバー= utf8

セクション[mysqld]。

したがって、my.cnfファイルは次のようになります。

[client] default-character-set=utf8 [mysql] default-character-set=utf8 [mysqld] character-set-server = utf8 collation-server = utf8_unicode_ci init-connect='SET NAMES utf8'

最後の2行は、UTF8文字セットとともにUTF8「大文字と小文字を区別しない」照合の使用を強制するためにあります。

MySQLが起動したら、Mysqlプロンプトで次のコマンドを発行してUTF8が使用されていることを確認できます。

mysql> show variables like 'char%';

このような結果が得られます（自分のサーバーの場合-異なる場合があります）：

+--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ 8 rows in set (0.00 sec)