因为根目录磁盘满了，我移动数据和软件造成mysql启动不了，查原因mysql.sock不在了

今天刚接手新项目的服务器，不知道以前谁搭建的因为要备份数据库，但是发现空间不足/根目录满的，然后我移动软件和文件造成mysql启动不了root@localhost~]#/data

今天刚接手新项目的服务器，不知道以前谁搭建的

因为要备份数据库，但是发现空间不足

/根目录满的，然后我移动软件和文件

造成 mysql启动不了

root@localhost ~]# /data/mysql/bin/mysqldump –databases star -uroot -p123456 > /home/star.sqlmysqldump: Couldn’t execute ‘show fields from `c_help`’: Got error 28 from storage engine (1030)[root@localhost ~]# df -lhFilesystemSize Used Avail Use% Mounted on/dev/sda32.0G 2.0G0 100% //dev/sda5246G 29G 205G 13% /data/dev/sda199M 12M 82M 13% /boottmpfs7.9G0 7.9G 0% /dev/shm发现空间不足，也不知道谁搭建的服务器，坑死我了root@localhost share]# mv * /data/ceshi/share/[root@localhost share]# df -ThFilesystem Type Size Used Avail Use% Mounted on/dev/sda3ext3 2.0G 1.5G 382M 80% //dev/sda5ext3 246G 24G 209G 11% /data/dev/sda1ext399M 12M 82M 13% /boottmpfstmpfs 7.9G0 7.9G 0% /dev/shm

mysql.sock不在了

[root@localhost tmp]# locate mysql.sock[root@localhost tmp]# /data/mysql/bin/data/include/ lib/libexec/ log/mysql-test/ share/sql-bench/[root@localhost tmp]# /data/mysql/bin/mysql本文来源gaodaimacom搞#^代%!码&网( startERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2)

没有进程

[root@localhost tmp]# killall mysqldmysqld: no process killed

[root@localhost tmp]# ps -aux | grep mysqldWarning: bad syntax, perhaps a bogus ‘-‘? See /usr/share/doc/procps-3.2.7/FAQroot22246 0.0 0.0 61196 720 pts/2 S+ 13:14 0:00 grep mysqld[root@localhost tmp]# more /etc/my.cnf|grep socksocket=/var/lib/mysql/mysql.sock[root@localhost tmp]# cd /var/lib/mysql/mysql.s

太奇葩了这问题

查看报错日志

140104 3:00:02 [ERROR] /data/mysql/libexec/mysqld: Sort aborted140105 3:00:02 [ERROR] /data/mysql/libexec/mysqld: Sort aborted140106 3:00:01 [ERROR] /data/mysql/libexec/mysqld: Sort aborted140107 3:00:01 [ERROR] /data/mysql/libexec/mysqld: Sort aborted140324 12:09:26 [Note] /data/mysql/libexec/mysqld: Normal shutdown140324 12:09:26 [Note] Slave I/O thread killed while reading event140324 12:09:26 [Note] Slave I/O thread exiting, read up to log ‘mysql-bin.000013’, position 54495054140324 12:09:26 [Note] Error reading relay log event: slave SQL thread was killed140324 12:09:44 InnoDB: Starting shutdown…140324 12:09:46 InnoDB: Shutdown completed; log sequence number 0 1573472989140324 12:09:46 [Note] /data/mysql/libexec/mysqld: Shutdown complete

[root@localhost tmp]# ps -ef | grep mysqldroot22330 20131 0 13:24 pts/2 00:00:00 grep mysqld[root@localhost tmp]# ps -ef | grep mysqlroot22332 20131 0 13:24 pts/2 00:00:00 grep mysql

发现

[root@localhost mysql]# ./bin/data/include/ lib/libexec/ log/mysql-test/ share/sql-bench/[root@localhost mysql]# ./bin/comp_errmysqlbinlogmysql_find_rowsmysqltestmanagercinnochecksummysqlbugmysql_fix_extensionsmysqltestmanager-pwgenmsql2mysqlmysqlcheckmysql_fix_privilege_tables mysql_tzinfo_to_sqlmyisamchkmysql_client_testmysqlhotcopymysql_upgrademyisam_ftdumpmysql_configmysqlimportmysql_upgrade_shellmyisamlogmysql_convert_table_format mysql_install_dbmysql_waitpidmyisampackmysqld_multimysql_secure_installation mysql_zapmy_print_defaultsmysqld_safemysql_setpermissionperrormysqlmysqldumpmysqlshowreplacemysqlaccessmysqldumpslowmysql_tableinforesolveipmysqladminmysql_explain_logmysqltestresolve_stack_dump[root@localhost mysql]# ./bin/mysqld_safe &[1] 22367[root@localhost mysql]# Starting mysqld daemon with databases from /data/mysql/data[root@localhost mysql]# /data/mysql/bin/mysql -uroot -p123456Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 15Server version: 5.0.88-log Source distributionNo entry for terminal type “xterm”;using dumb terminal settings.Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.mysql> Ctrl-C — exit!Aborted[root@localhost mysql]# cd /tmp/.ICE-unix/ mysql.sock[root@localhost mysql]# cd /tmp/

终于进去了

终于备份好了，为了以后不必要的麻烦，，添加service管理

[root@localhost data]# cp /data/mysql/share/mysql/mysql.server /etc/init.d/mysql[root@localhost data]# cd /etc/init.d/[root@localhost init.d]# chkconfig –add mysql[root@localhost init.d]# chkconfig mysql on

这样方便多了

[root@localhost init.d]# service mysql stopMySQL manager or server PID file could not be found![FAILED][root@localhost init.d]# service mysql startStarting MySQL.[ OK ][root@localhost init.d]# /data/mysql/bin/mysql -uroot -pWelcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 21Server version: 5.0.88-log Source distributionNo entry for terminal type “xterm”;using dumb terminal settings.Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

终于解决了！

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