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What should I do if the disk space in Ubuntu is full and mysql cannot be started?
What should I do if the disk space in Ubuntu is full and mysql cannot be started?
Yesterday, I encountered the problem that the MySQL database could not be restarted. I thought it was due to permissions. Later, I found that the prompt was caused by insufficient disk space. I solved it by searching for relevant information. Therefore, the following article mainly introduces the issue under ubuntu. Friends who need a solution to the problem that mysql cannot start due to insufficient disk space can refer to it.
Preface
Recently, I added two fields to a table in the database. Later, it prompted something like insufficient disk space, and then the database failed. The connection was disconnected, and I couldn't connect to it. Later, I finally solved the problem after thinking about it. This experience was really frightening. This article is to record the solution to mysql being unable to start due to insufficient disk space.
The method is as follows
Operating system: ubuntu, mysql cannot be started due to insufficient disk space, which will cause the following problems:
root@iZ28z558vv0Z:/etc/mysql# mysql -u root -p Enter password: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) root@iZ28z558vv0Z:/b# service mysql start start: Job failed to start root@iZ28z558vv0Z:/var/lib# service mysqld start mysqld: unrecognized service
Solution: Find the configuration file of mysql my.cnf:
root@iZ28z558vv0Z:/etc/mysql# ls conf.d debian.cnf debian-start my.cnf root@iZ28z558vv0Z:/etc/mysql# vi my.cnf
The datadir in the file displays /var/lib/mysql
##
[mysqld] # # * Basic Settings # 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
root@iZ28z558vv0Z:/var# df /var Filesystem 1K-blocks Used Available Use% Mounted on /dev/xvda1 41151808 39038392 0 100% /
Summary
[Related recommendations]1. 2.Detailed explanation of innodb_index_stats when importing data Error prompting table primary key conflict
3.Example details innodb_autoinc_lock_mode in mysql
4.Detailed example of adding new user permissions in MySQL##5.
Detailed example of init_connect method in mysqlThe above is the detailed content of What should I do if the disk space in Ubuntu is full and mysql cannot be started?. For more information, please follow other related articles on the PHP Chinese website!
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