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stunnell log file has reached its limit

 
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Top Forums UNIX for Dummies Questions & Answers stunnell log file has reached its limit
# 1  
Old 09-12-2011
stunnell log file has reached its limit
Please help! I am really new to Linux, and my colleague who usually deals with these things isnt here to help me out.

We are running Scalix mail services on CentOS 6.0. Email users with IMAP folders are getting an error message stating the server cannot be reached, however POP3 mail users are fine.

Whilst restarting some services I found this:

Code:
[root@mail1 ~]# service stunnel restart
Shutting down stunnel: [FAILED]
Starting stunnel: 2011.09.12 08:20:48 LOG7[12257:3086513872]: Snagged 64 random bytes from /dev/urandom
2011.09.12 08:20:48 LOG7[12257:3086513872]: RAND_status claims sufficient entropy for the PRNG
2011.09.12 08:20:48 LOG6[12257:3086513872]: PRNG seeded successfully
2011.09.12 08:20:48 LOG7[12257:3086513872]: Certificate: /etc/stunnel/stunnel2.pem
2011.09.12 08:20:48 LOG7[12257:3086513872]: Key file: /etc/stunnel/stunnel2.pem
2011.09.12 08:20:48 LOG7[12257:3086513872]: SSL context initialized for service pop3s
2011.09.12 08:20:48 LOG7[12257:3086513872]: Certificate: /etc/stunnel/stunnel2.pem
2011.09.12 08:20:48 LOG7[12257:3086513872]: Key file: /etc/stunnel/stunnel2.pem
2011.09.12 08:20:48 LOG7[12257:3086513872]: SSL context initialized for service imaps
2011.09.12 08:20:48 LOG7[12257:3086513872]: Certificate: /etc/stunnel/stunnel2.pem
2011.09.12 08:20:48 LOG7[12257:3086513872]: Key file: /etc/stunnel/stunnel2.pem
2011.09.12 08:20:48 LOG7[12257:3086513872]: SSL context initialized for service ssmtp
/etc/init.d/stunnel: line 24: 12257 File size limit exceeded/usr/sbin/stunnel

Is it best to delete the contents of this file? If so how would I go about doing that? Please can someone tell me what to do? Smilie

Thanks in advance.

Moderator's Comments:
Mod Comment Please use [CODE] tags when posting command lines and console output
Last edited by pludi; 09-12-2011 at 08:59 AM..
# 2  
Old 09-12-2011
Check ulimit -a file size limit, write it down.
Use fuser to get which pids are using /usr/sbin/stunnel
Code:
fuser /usr/sbin/stunnel

Then, lsof -p those pids.

That will list open files, then check their size with du -sk /path/to/file, if the size of file is greater the ulimit file size value, that file is the problem.
If it's a log or alike file, you can make it 0 size with
Code:
0>file.log

DO NOT use rm on file if processes are using it.

After that i would be wise do increase it ulimit value for file size (if it's not large enough)

Hope this helps.
Regards.
This User Gave Thanks to Peasant For This Post:
beckyboo
# 3  
Old 09-12-2011
Thanks for the reply...I think I'm even more confused than earlier!

Ok, I started by doing the ulimit -a which gave me this:

Code:
 
[root@mail1 ~]# ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 77824
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 77824
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

fuser /usr/sbin/stunnel came back with nothing at all, just took me to the next line so I couldnt try the lsof -p as I had no pids.

Could you advise me further? I really appreciate your help.
Last edited by beckyboo; 09-12-2011 at 11:56 AM.. Reason: Entered code
# 4  
Old 09-12-2011
Is that a 32bit architecture ?
Check and see if the log is bigger then 2GB.

I don't know the location of stunnel logs, please check configuration of that service to find where it is logging.
You can also run thisto find all log files which are bigger then 1.9 GB, on the entire machine and list them with ls command.
Code:
find / -size +1900M -exec ls -lrt {} \;

Hope this helps
Regards
Peasant.
This User Gave Thanks to Peasant For This Post:
beckyboo
# 5  
Old 09-12-2011
Hi, thank you for being so patient with me, I really appreciate this.
Yes 32bit is correct, but its actually v 5.5 of CentOS.

Heres what I found, which I think shows the stunnel log file is the only one that is a problem:

Code:
 
[root@mail1 ~]# find / -size +1900M -exec ls -lrt {} \;
find: /proc/2904/task/2905/fd/15: No such file or directory
find: /proc/2904/task/2905/fd/16: No such file or directory
find: /proc/2904/task/2905/fd/17: No such file or directory
find: /proc/2904/task/2905/fd/19: No such file or directory
find: /proc/2904/task/2905/fd/20: No such file or directory
find: /proc/2904/task/2905/fd/21: No such file or directory
find: /proc/2904/task/2905/fd/26: No such file or directory
find: /proc/2904/task/2905/fd/28: No such file or directory
find: /proc/2904/task/2905/fd/29: No such file or directory
find: /proc/2904/task/2905/fd/30: No such file or directory
find: /proc/12751: No such file or directory
find: /proc/12754/task/12754/fd/4: No such file or directory
find: /proc/12754/fd/4: No such file or directory
find: /var/opt/scalix/m1/s/temp/imap-core.309.lck: No such file or directory
find: /var/opt/scalix/m1/s/temp/imap-admin.31487: No such file or directory
find: /var/opt/scalix/m1/s/temp/025i5b2: No such file or directory
find: /var/opt/scalix/m1/s/temp/025i5b1: No such file or directory
find: /var/opt/scalix/m1/s/temp/imap-core.309: No such file or directory
-rw-r----- 1 root root 2147483647 Sep 9 15:44 /var/log/stunnel.log
[root@mail1 ~]#

Last edited by beckyboo; 09-12-2011 at 11:57 AM..
# 6  
Old 09-12-2011
If you require /var/log/stunnel.log, copy it somewhere else with cp.
Then redirect 0 into it, and restart required application
Code:
0>/var/log/stunnel.log

Regards
Peasant.
This User Gave Thanks to Peasant For This Post:
beckyboo
# 7  
Old 09-12-2011
Hi :-(
I have tried what you suggested, it all looked to be going well until I tried to restart stunnel...its still failing.

Code:
 
[root@mail1 ~]# cp /var/log/stunnel.log /var/log/stunnel_backup.log
[root@mail1 ~]# 0>/var/log/stunnel.log
[root@mail1 ~]# service stunnel restart
Shutting down stunnel:                                     [FAILED]
Starting stunnel:
[root@mail1 ~]#

 
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