/opt分区被web日志堆满了，导致一些服务无法正常运行，于是rm -fr掉这些日志（近11GB），但是服务仍没有恢复正常，用df -hT看，该分区占用还是100%：
[root@anjing opt]# df-hT
文件系统 类型 容量 已用 可用 已用% 挂载点
/dev/sda9 ext3 996M 228M 717M 25% /
/dev/sda10 ext3 27G 12G 14G 47% /var
/dev/sda8 ext3 996M 34M 911M 4% /home
/dev/sda7 ext3 2.0G 36M 1.9G 2% /temp
/dev/sda6 ext3 3.0G 2.6G 228M 92% /usr
/dev/sda3 ext3 19G 19G 0 100% /opt
/dev/sda1 ext3 99M 12M 83M 12% /boot
tmpfs tmpfs 2.0G 0 2.0G 0% /dev/shm
但是用du -sh /opt命令，看到：
[root@anjing /]# du-sh /opt/
8.3G /opt/
应该是删除了这些文件，但是空间没有释放，当然重启可以解决目的，但是会造成服务器上所有业务中断，可使用下面命令查看删除文件占用情况：
[root@anjing opt]# lsof|grep delete
mysqld_sa11317 root cwd DIR 8,6 0 102107/usr/local/mysql (deleted)
mysqld_sa11317 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)
这里可以看到这些文件虽然删除了，但是还占用着空间，现在只要kill掉这些进程：
[root@anjing /]# kill-9 16961
[root@anjing /]# df-hT
文件系统 类型 容量 已用 可用 已用% 挂载点
/dev/sda9 ext3 996M 228M 717M 25% /
/dev/sda10 ext3 27G 12G 14G 47% /var
/dev/sda8 ext3 996M 34M 911M 4% /home
/dev/sda7 ext3 2.0G 36M 1.9G 2% /temp
/dev/sda6 ext3 3.0G 2.6G 228M 92% /usr
/dev/sda3 ext3 19G 8.4G 9.6G 47% /opt
/dev/sda1 ext3 99M 12M 83M 12% /boot
tmpfs tmpfs 2.0G 0 2.0G 0% /dev/shm
问题解决，服务也恢复整理啦…
1.查看binlog日志
mysql> show binary logs;
+------------------+------------+
| Log_name | File_size |
+------------------+------------+
| mysql-bin.000061 | 50624 |
| mysql-bin.000062 | 5159 |
| mysql-bin.000063 | 126 |
| mysql-bin.000064 | 3067 |
| mysql-bin.000065 | 503 |
| mysql-bin.000066 | 494 |
| mysql-bin.000067 | 107 |
| mysql-bin.000068 | 1433 |
| mysql-bin.000069 | 7077 |
| mysql-bin.000070 | 107 |
| mysql-bin.000071 | 804 |
| mysql-bin.000072 | 7642 |
| mysql-bin.000073 | 2198 |
| mysql-bin.000074 | 350139 |
| mysql-bin.000075 | 126 |
| mysql-bin.000076 | 51122 |
| mysql-bin.000077 | 1074279197 |
| mysql-bin.000078 | 1074435879 |
| mysql-bin.000079 | 928917122 |
+------------------+------------+
2.删除某个日志文件之前的所有日志文件
mysql> purge binary logs to 'mysql-bin.000079';
mysql> show binary logs;
+------------------+-----------+
| Log_name | File_size |
+------------------+-----------+
| mysql-bin.000079 | 928917122 |
+------------------+-----------+
mysql> reset master; #重置所有的日志
3.关闭mysql的binlog日志
#log-bin=mysql-bin 在my.cnf里面注释掉binlog日志
重启mysql
service mysqld restart
