User's .cagefs/tmp/ directory filling with thousands of session files

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Resolved User's .cagefs/tmp/ directory filling with thousands of session files

I was looking into a disk usage issue for a customer and found that they had nearly 1 GB of temporary session files stored in /home/user/.cagefs/tmp/

In fact, there are currently nearly 197,000 of these files... some with today's date... some over 4 months old. The files all look like this:

-rw------- 1 username username 75 Jul 5 15:56 sess_fffcd441337ca45a72f1fd314756ec51
-rw------- 1 username username 96 Jul 20 16:07 sess_fffce04195a58c07cff8a0be35a7be03
-rw------- 1 username username   96 Aug 23 08:25 sess_fffd1e490ef386faf741e79f6ee3f964
-rw------- 1 username username   75 Jun 14 00:25 sess_fffd35f8eb321c6e034c02e4cafd6ce9
-rw------- 1 username username   75 Oct 1 23:43 sess_fffd8c5e81f81b1bccad9c06d0b1fffa

Sure, i can clear these files out, but this is masking a larger problem.

1) Why are these files here?
2) Should they be here?
3) How can they be automatically purged to stop this from happening to this or other customers in the future?

Thanks for any insight you can provide.

- Scott

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Responses (0)

10.11.2015 11:11:24
# 1

Mike Vasquez Accepted Answer

Posts: 6
Joined: 29.06.2012

Votes

Undo

Open /usr/share/cagefs/cagefsctl.py and find def tmpwatch():
Replace string (line 3922 in cagefs-5.5-6.4.el6.cloudlinux.x86_64):

subprocess.call(cmd, stderr=dev_null, stdout=dev_null)

with this code, saving correct identing for python:

if VERBOSE:

     subprocess.call(cmd)

else:

     subprocess.call(cmd, stderr=dev_null, stdout=dev_null)

Then run:

cagefsctl -v --tmpwatch

Output of this command should help you to fix the problem.

10.11.2015 12:11:24
# 2

Scott Neader Accepted Answer

Posts: 89
Joined: 12.06.2014

Votes

Undo

Bogdan, this is a known bug. See Ticket: #JUX-649-26138

Hello!

I have found a bug in cagefsctl --tmpwatch command
It will be fixed in the next release of CageFS

Thank you for reporting the issue

Anton Volkov,
Developer,
Cloud Linux Inc.

This problem is STILL not fixed, by the way. I do not know what release of "CageFS" will fix this... do you know?

- Scott

10.11.2015 13:11:20
# 3

Mike Vasquez Accepted Answer

Posts: 6
Joined: 29.06.2012

Votes

Undo

Of course before such ugly way of detecting the problem, you should backup original file and after debugging, you should return it back.
In our case, after enabling \"verbose\" of tmpwatch we found out two problems:
- wrong permissions on user\'s home directory, /home/username
- wrong permissions and owner on ~username/.cagefs/tmp
After fixing it - tmpwatch works perfect.

Bogdan, it\'d be good to implement verbosing for tmpwatch and catch exit code of running tmpwatch in user\'s lve.