MySQL无法在Ubuntu中重新启动

Question

I am trying to connect my java program in the host OS with the mysql database in the ubuntu VM. I have created the necessary tables in the database and changed the bind-address in the my.cnf file to that of the host OS address. While I am trying to restart mysql, I am getting:

mysql stop/waiting
start: Job failed to start.

Then when I am trying to access mysql, I am getting the following error:

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysql.sock' (2)

Please help me with the solution.

Answer 1

Simply follow below step to start MySQL server.

• Try to restart MySQL server from terminal. (In RHEL that is /etc/init.d/mysqld restart )

Still same issue then follow below step.

• Rename mysql.sock file with another name eg mysl.sock_old in following directory.

  /var/run/mysqld/

Now restart your MySQL server.

Answer 2

I have the same issue with mysql on Ubuntu14.04. I fixed the issue by commenting configuration in /etc/mysql/my.cnf file.

innodb_buffer_pool_size=10G

innodb_log_file_size=54M

After commenting mysql service runs well..

Note :- If you comment these configuration then default configuration will take care the size of buffer pool and log file. So not any issue . But if you want to mention it manually , then provide 80% of your physical memory to buffer pool size. and 25% of buffer pool size to log file.