Linux Filesystem ext3 usage reach 100%. The space would not free up after remove some files.

Posted on 2014-01-01
Medium Priority
Last Modified: 2014-01-21
The filesystem is ext3 and 12G. When it reached 100% today, I removed three 300M files.But df -h ./ still shows the usage is 100%. After I removed one 2G file, the df -h ./ shows normal.
This problem is not related with process. I did not find any process which used these files.
df  command should read the superblock to calculate the filesystem usage. Looks like the superblock would not be refreshed after I removed three 300M files. Remove file means that the entry for this file will be deleted from the inode of the directory. The inode for this file is still there. The filesystem should notice this. I don't get why.  Is there a way to correct this ?Thanks.
Question by:c11v11
LVL 29

Expert Comment

ID: 39750107
you could of try df with sync option to see if that shows the right amount

i would not worry about that. also it could be, it took bit time to flushed the buffer hence it was not showing the right amount. also you can try to check health of the hard rive.
LVL 62

Expert Comment

ID: 39750399
Space is not freed if you delete open files.

Author Comment

ID: 39750455
it is not open file for my case.  when i run rm. file,  the command return success quickly.  looks like it didnt do anything. although the file is removed, the space is not free.
LVL 62

Accepted Solution

gheist earned 1500 total points
ID: 39750530
try lsof +L1, that should show deleted but open files (by you, coworker or a faulty script)
LVL 13

Expert Comment

ID: 39784930
Agree with gheist... #lsof can show you correct status

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

This article will show you step-by-step instructions to build your own NTP CentOS server.  The network diagram shows the best practice to setup the NTP server farm for redundancy.  This article also serves as your NTP server documentation.
This installment of Make It Better gives Media Temple customers the latest news, plugins, and tutorials to make their Grid shared hosting experience that much smoother.
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial
Suggested Courses

627 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question