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linux - /tmp used 100% where is files?



On Centos 6.3 server I noticed that /tmp has no longer free space to store files.




[root@]# df -h
Filesystem Size Used Avail Use% Mounted on

/dev/mapper/vg0-lv_root
99G 11G 84G 12% /
tmpfs 16G 0 16G 0% /dev/shm
/dev/sda1 194M 65M 120M 35% /boot
/dev/mapper/vg0-lv_tmp
97M 92M 704K 100% /tmp
/dev/mapper/vg1-lv0 50G 180M 47G 1% /mnt/ssd2




But there is nothing in /tmp at all




[root@]# ls -Sahl /tmp |more
total 10K
dr-xr-xr-x. 25 root root 4.0K Mar 16 04:29 ..
drwxrwxrwt. 3 root root 3.0K Mar 16 03:32 .
drwx------. 2 root root 1.0K Mar 16 04:28 mc-root



My question is: How could it be? By what /tmp mount space used? And how could I clean it?


Answer



You should use lsof /tmp to see currently opened file.



If you delete a file, while a software still have a lock on it, you won't see it anymore, but it will still have hd space assigned to it.


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