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.sql

mysqldump: Couldn't execute 'show fields from `c_help`': Got error 28 from storage engine (1030)[root@localhost ~]# df -lh

Filesystem

Size Used Avail Use% Mounted on

/dev/sda3

2.0G 2.0G

0 100% /

/dev/sda5

246G 29G 205G 13% /data

/dev/sda1

99M 12M 82M 13% /boot

tmpfs

7.9G

0 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 -Th

Filesystem Type Size Used Avail Use% Mounted on

/dev/sda3

ext3 2.0G 1.5G 382M 80% /

/dev/sda5

ext3 246G 24G 209G 11% /data

/dev/sda1

ext3

99M 12M 82M 13% /boot

tmpfs

tmpfs 7.9G

0 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 start

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

没有进程[root@localhost tmp]# killall mysqld

mysqld: no process killed

[root@localhost tmp]# ps -aux | grep mysqld

Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ

root

22246 0.0 0.0 61196 720 pts/2 S+ 13:14 0:00 grep mysqld[root@localhost tmp]# more /etc/my.cnf|grep sock

socket=/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 aborted

140105 3:00:02 [ERROR] /data/mysql/libexec/mysqld: Sort aborted

140106 3:00:01 [ERROR] /data/mysql/libexec/mysqld: Sort aborted

140107 3:00:01 [ERROR] /data/mysql/libexec/mysqld: Sort aborted

140324 12:09:26 [Note] /data/mysql/libexec/mysqld: Normal shutdown

140324 12:09:26 [Note] Slave I/O thread killed while reading event

140324 12:09:26 [Note] Slave I/O thread exiting, read up to log 'mysql-bin.000013', position 54495054

140324 12:09:26 [Note] Error reading relay log event: slave SQL thread was killed

140324 12:09:44 InnoDB: Starting shutdown...

140324 12:09:46 InnoDB: Shutdown completed; log sequence number 0 1573472989

140324 12:09:46 [Note] /data/mysql/libexec/mysqld: Shutdown complete

[root@localhost tmp]# ps -ef | grep mysqld

root

22330 20131 0 13:24 pts/2 00:00:00 grep mysqld

[root@localhost tmp]# ps -ef | grep mysql

root

22332 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_err

mysqlbinlog

mysql_find_rows

mysqltestmanagerc

innochecksum

mysqlbug

mysql_fix_extensions

mysqltestmanager-pwgen

msql2mysql

mysqlcheck

mysql_fix_privilege_tables mysql_tzinfo_to_sql

myisamchk

mysql_client_test

mysqlhotcopy

mysql_upgrade

myisam_ftdump

mysql_config

mysqlimport

mysql_upgrade_shell

myisamlog

mysql_convert_table_format mysql_install_db

mysql_waitpid

myisampack

mysqld_multi

mysql_secure_installation mysql_zap

my_print_defaults

mysqld_safe

mysql_setpermission

perror

mysql

mysqldump

mysqlshow

replace

mysqlaccess

mysqldumpslow

mysql_tableinfo

resolveip

mysqladmin

mysql_explain_log

mysqltest

resolve_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 -p123456

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 15

Server version: 5.0.88-log Source distribution

No 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 stop

MySQL manager or server PID file could not be found!

[FAILED]

[root@localhost init.d]# service mysql start

Starting MySQL.

[ OK ]

[root@localhost init.d]# /data/mysql/bin/mysql -uroot -p

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 21

Server version: 5.0.88-log Source distribution

No 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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