Meu servidor é o CentOS 6.5 64bit, executando o servidor da comunidade MySQL 5.5.42 da Remi. Eu tentei importar um banco de dados a partir da linha de comando, executando
mysql -u root -p website_database < website_database.sql
Após inserir a senha e o SQL foi iniciado, a seguinte mensagem é exibida:
ERROR 2013 (HY000) at line 288: Lost connection to MySQL server during query
Eu tentei reiniciar o servidor MySQL como root, mas a seguinte mensagem é exibida:
# service mysqld restart
Stopping mysqld: [ OK ]
MySQL Daemon failed to start.
Starting mysqld: [FAILED]
Então eu verifiquei o arquivo de log de erros do mysql, aqui está o conteúdo:
150214 20:51:41 mysqld_safe Number of processes running now: 0
150214 20:51:41 mysqld_safe mysqld restarted
150214 20:51:41 [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.
150214 20:51:41 [Note] Plugin 'FEDERATED' is disabled.
150214 20:51:41 InnoDB: The InnoDB memory heap is disabled
150214 20:51:41 InnoDB: Mutexes and rw_locks use GCC atomic builtins
150214 20:51:41 InnoDB: Compressed tables use zlib 1.2.3
150214 20:51:41 InnoDB: Using Linux native AIO
150214 20:51:41 InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: mmap(137363456 bytes) failed; errno 12
150214 20:51:41 InnoDB: Completed initialization of buffer pool
150214 20:51:41 InnoDB: Fatal error: cannot allocate memory for the buffer pool
150214 20:51:41 [ERROR] Plugin 'InnoDB' init function returned error.
150214 20:51:41 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
150214 20:51:41 [ERROR] Unknown/unsupported storage engine: InnoDB
150214 20:51:41 [ERROR] Aborting
150214 20:51:41 [Note] /usr/libexec/mysqld: Shutdown complete
150214 20:51:41 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
150214 20:53:29 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
150214 20:53:29 [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.
150214 20:53:29 [Note] Plugin 'FEDERATED' is disabled.
150214 20:53:29 InnoDB: The InnoDB memory heap is disabled
150214 20:53:29 InnoDB: Mutexes and rw_locks use GCC atomic builtins
150214 20:53:29 InnoDB: Compressed tables use zlib 1.2.3
150214 20:53:29 InnoDB: Using Linux native AIO
150214 20:53:29 InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: mmap(137363456 bytes) failed; errno 12
150214 20:53:29 InnoDB: Completed initialization of buffer pool
150214 20:53:29 InnoDB: Fatal error: cannot allocate memory for the buffer pool
150214 20:53:29 [ERROR] Plugin 'InnoDB' init function returned error.
150214 20:53:29 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
150214 20:53:29 [ERROR] Unknown/unsupported storage engine: InnoDB
150214 20:53:29 [ERROR] Aborting
150214 20:53:29 [Note] /usr/libexec/mysqld: Shutdown complete
150214 20:53:29 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
A única maneira de reiniciar o servidor MySQL é reiniciando todo o servidor. Eu não tenho nenhuma pista, mesmo olhando para o arquivo de log, você sabe o que pode estar acontecendo? Obrigado.