CentOS磁盘空间爆满的解决办法

1.查看磁盘具体占用情况

[root@localhost gsidc]# df -hT
Filesystem     Type      Size  Used Avail Use% Mounted on
/dev/sda3      xfs        92G   21G   72G  23% /
devtmpfs       devtmpfs  7.8G     0  7.8G   0% /dev
tmpfs          tmpfs     7.8G     0  7.8G   0% /dev/shm
tmpfs          tmpfs     7.8G  129M  7.7G   2% /run
tmpfs          tmpfs     7.8G     0  7.8G   0% /sys/fs/cgroup
/dev/sda1      xfs       197M  192M  5.0M  98% /boot
tmpfs          tmpfs     1.6G   12K  1.6G   1% /run/user/42
tmpfs          tmpfs     1.6G     0  1.6G   0% /run/user/1000

2.删除具体位置磁盘占用无用文件

3. 查看磁盘删除情况

[root@localhost gsidc]# lsof |grep delete

4. 彻底释放磁盘空间

mysqld_sa 11317      root  cwd       DIR        8,6          0     102107 /usr/local/mysql (deleted)
mysqld_sa 11317      root  255r      REG        8,6      13620     102182 /usr/local/mysql/bin/mysqld_safe (deleted)
mysqld    11353     mysql  txt       REG        8,6   29382763     102138 /usr/local/mysql/bin/mysqld (deleted)
mysqld    11353     mysql    5u      REG        8,9          0      58761 /tmp/ibpfbHsa (deleted)
mysqld    11353     mysql    6u      REG        8,9          0      58771 /tmp/ibqoMnag (deleted)
mysqld    11353     mysql    7u      REG        8,9          0      58772 /tmp/ibN4C4Rl (deleted)
mysqld    11353     mysql    8u      REG        8,9          0      58781 /tmp/ibkWP8zr (deleted)
mysqld    11353     mysql   12u      REG        8,9          0      58782 /tmp/ibnqrZsx (deleted)
java      16961      root    1w      REG        8,3 5822263296     457562 /opt/tomcat/logs/catalina.out (deleted)
java      16961      root    2w      REG        8,3 5822263296     457562 /opt/tomcat/logs/catalina.out (deleted)
java      16961      root   12w      REG        8,3 5469261824     197191 /opt/tomcat/logs/catalina.2013-01-02.log (deleted)
java      16961      root   13w      REG        8,3    2166784     197192 /opt/tomcat/logs/localhost.2013-01-02.log (deleted)
java      16961      root   14w      REG        8,3          0     391681 /opt/tomcat/logs/manager.2013-01-02.log (deleted)
java      16961      root   15w      REG        8,3          0     391682 /opt/tomcat/logs/host-manager.2013-01-02.log (deleted)

关闭删除文件进程

[root@localhost /]# kill -9 16961

磁盘容量恢复