一个比较奇怪的linux问题，我的硬盘空间跑哪里去了？

biubiu · 发表于 2018-4-7 12:19:05

本帖最后由 biubiu 于 2018-4-7 12:59 编辑

这个占用好奇怪啊，为什么丢了那么多空间

莫名不见几十G

从df命令里面看，一共是738G，但是用了4.7G，可用只有696G

[ol]

root@server1:~# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/vda1 738G 4.7G 696G 1% /

udev 10M 0 10M 0% /dev

tmpfs 201M 4.5M 196M 3% /run

tmpfs 501M 0 501M 0% /dev/shm

tmpfs 5.0M 0 5.0M 0% /run/lock

tmpfs 501M 0 501M 0% /sys/fs/cgroup

[/ol]复制代码[ol]

root@server1:~# du -sh /*

16K /appex

11M /bin

30M /boot

0 /dev

4.1M /etc

297M /home

0 /initrd.img

205M /lib

4.0K /lib64

16K /lost+found

8.0K /media

4.0K /mnt

1.5M /opt

du: cannot access ‘/proc/2371/task/2371/fd/4’: No such file or directory

du: cannot access ‘/proc/2371/task/2371/fdinfo/4’: No such file or directory

du: cannot access ‘/proc/2371/fd/4’: No such file or directory

du: cannot access ‘/proc/2371/fdinfo/4’: No such file or directory

0 /proc

539M /root

4.5M /run

5.1M /sbin

1.5M /serverspeeder

4.0K /srv

0 /sys

32K /tmp

3.2G /usr

453M /var

0 /vmlinuz

[/ol]复制代码

kumotobi · 发表于 2018-4-7 12:42:00

不懂你说哪少了几十g

kumotobi · 发表于 2018-4-7 12:36:41

哪有问题？好像对的上啊

biubiu · 发表于 2018-4-7 12:38:56

搜刀一大堆du和dh不一致的解决办法

可是我的df和du大小好像没什么区别

biubiu · 发表于 2018-4-7 12:41:52

kumotobi 发表于 2018-4-7 12:36

哪有问题？好像对的上啊
738 4.7 696

可用加已用一共700G好像

kumotobi · 发表于 2018-4-7 12:36:00

Deleting the filename doesn't actually delete the file. Some other process is holding the file open, causing it to not be deleted; restart or kill that process to release the file.

Use

lsof +L1
to find out which process is using a deleted (unlinked) file.

转自stackoverflow 供参考

biubiu · 发表于 2018-4-7 12:46:03

kumotobi 发表于 2018-4-7 12:46

Deleting the filename doesn't actually delete the file. Some other process is holding the file open, ...
dalao我试了找到对应服务，然后重启服务，但是好像不行
[ol]

root@server1:~# lsof | grep delete

httpd 957 root 10u REG 254,1 0 825 /tmp/ZCUDSeCFKw (deleted)

httpd 1202 www 10u REG 254,1 0 825 /tmp/ZCUDSeCFKw (deleted)

httpd 1203 www 10u REG 254,1 0 825 /tmp/ZCUDSeCFKw (deleted)

httpd 1204 www 10u REG 254,1 0 825 /tmp/ZCUDSeCFKw (deleted)

httpd 1205 www 10u REG 254,1 0 825 /tmp/ZCUDSeCFKw (deleted)

httpd 1206 www 10u REG 254,1 0 825 /tmp/ZCUDSeCFKw (deleted)

httpd 2340 www 10u REG 254,1 0 825 /tmp/ZCUDSeCFKw (deleted)

root@server1:~# service httpd restart

root@server1:~# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/vda1 738G 3.1G 697G 1% /

udev 10M 0 10M 0% /dev

tmpfs 201M 4.5M 196M 3% /run

tmpfs 501M 0 501M 0% /dev/shm

tmpfs 5.0M 0 5.0M 0% /run/lock

tmpfs 501M 0 501M 0% /sys/fs/cgroup

root@server1:~# lnmp restart

+-------------------------------------------+

| Manager for LNMP, Written by Licess |

+-------------------------------------------+

| https://lnmp.org |

+-------------------------------------------+

Stoping LAMP...

stop apache... httpd (no pid file) not running

done

[ ok ] Stopping mysql (via systemctl): mysql.service.

Starting LAMP...

start apache... done

[ ok ] Starting mysql (via systemctl): mysql.service.

root@server1:~# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/vda1 738G 3.1G 697G 1% /

udev 10M 0 10M 0% /dev

tmpfs 201M 4.5M 196M 3% /run

tmpfs 501M 0 501M 0% /dev/shm

tmpfs 5.0M 0 5.0M 0% /run/lock

tmpfs 501M 0 501M 0% /sys/fs/cgroup

[/ol]复制代码

kumotobi · 发表于 2018-4-7 12:52:15

biubiu 发表于 2018-4-7 12:52

dalao我试了找到对应服务，然后重启服务，但是好像不行
reboot

biubiu · 发表于 2018-4-7 12:46:00

kumotobi 发表于 2018-4-7 12:54

reboot
这个试过好几次了，好像也是不行
[ol]

root@server1:~# reboot

Connection closing...Socket close.

Connection closed by foreign host.

Disconnected from remote host(hatch-los) at 12:50:15.

Type `help' to learn how to use Xshell prompt.

[c:\~]$

Looking up proxy server 'localhost'...

Host 'localhost' resolved to ::1.

Connecting to ::1:1090...

Connection established.

To escape to local shell, press 'Ctrl+Alt+]'.

The programs included with the Debian GNU/Linux system are free software;

the exact distribution terms for each program are described in the

individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent

permitted by applicable law.

root@server1:~# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/vda1 738G 3.1G 697G 1% /

udev 10M 0 10M 0% /dev

tmpfs 201M 4.5M 196M 3% /run

tmpfs 501M 0 501M 0% /dev/shm

tmpfs 5.0M 0 5.0M 0% /run/lock

tmpfs 501M 0 501M 0% /sys/fs/cgroup

root@server1:~#

[/ol]复制代码
binghe 发表于 2018-4-7 14:28

我记得以前有人跟我说过，ext文件系统有5%左右的保留空间，如果需要释放的话可以用 tune2fs -m 1 /dev/vd ...

原来是这样啊
738*0.05，大概也就是37g左右，那就没问题了

binghebiubiu · 发表于 2018-4-7 12:54:05

有5%的预留备份空间

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