[Mldonkey-bugs] [Bug #985] NetBSD: Too many open files

[nobody]

=================== BUG #985: LATEST MODIFICATIONS ==================
http://savannah.nongnu.org/bugs/?func=detailbug&bug_id=985&group_id=1409

Changes by: mldonkey admin <address@hidden>
Date: 2002-Sep-25 06:51 (GMT)

------------------ Additional Follow-up Comments ----------------------------
OK, I will check your logs to try to understand the problem.




=================== BUG #985: FULL BUG SNAPSHOT ===================


Submitted by: None                      Project: mldonkey, a free e-Donkey 
client
Submitted on: 2002-Aug-13 12:59
Category:  Core                         Severity:  5 - Major                    
Bug Group:  None                        Resolution:  Remind                     
Assigned to:  mldonkey                  Status:  Open                           
Release:  None                          Release:                                
Platform Version:  None                 Binaries Origin:  None                  

Summary:  NetBSD: Too many open files

Original Submission:  Hi,

my logfile is filled with endless repetitions of:

+++ Exception BEFORE CONNECT socket failed: Too many open files
Exception socket failed: Too many open files in client connection

What does it mean - how can I solve this problem?

Thanks,
 Andreas

mldonkey is great! I'd be happy to provide some code for it,
but why the heck did you use ocaml and not something less
exotic? :)

Follow-up Comments
*******************

-------------------------------------------------------
Date: 2002-Sep-25 06:51             By: mldonkey
OK, I will check your logs to try to understand the problem.


-------------------------------------------------------
Date: 2002-Sep-24 08:11             By: None
Okay, I've followed the instructions given and have attached my log, 
downloads.ini, lsof & netstat output, etc.  I'm running it again as I found out 
it's actually the "debug_net" option not "net_debug" option (I set it from 
telnet and this doesn't give any errors with invalid options).

There were no changes on the system while this was running (it's on a static IP 
address and a permanently-on connection).

Anyway, hope this helps and I'll post up the others next time it stops.

Cheers,
Robin

-------------------------------------------------------
Date: 2002-Sep-23 10:25             By: None
I've got this bug under linux, too. System is Debian Woody with a patched 
2.4.18. Those disfuntional sockets (which "strace" says are closed) show up 
under lsof with "can't indendify target". I have attached one log generated by

while true; do
 o=`lsof -n | grep mldonkey | grep iden  | wc -l`
 d=`date`
 t=`lsof -n | grep mldonkey | wc -l`
 echo "$d $o/$t stalled sockets" ; sleep 50
done

I'm on the mldonkey-bugs and -users list for contact

Jens

-------------------------------------------------------
Date: 2002-Sep-22 13:52             By: mldonkey
How long does it take to get the "too many open files" message ? 

Before it happens, set the "net_debug" and "verbose" options to true (with CVS 
version), and keeps a log of mldonkey output (pipe it to a file).
Keep also a telnet session to mldonkey opened, so that you are sure to be able 
to send commands when no fd will be available.

 When it happens:
* In mldonkey telnet, call the "debug_socks" command, verify that mldonkey has 
placed some debug information on sockets in the log.
* In the shell, do a "netstat -nap", check mldonkey pid, go in /proc/<pid>/fd 
(if you have it), and "ls -l", use the "lsof" program on mldonkey (if you have 
it). Take as much information as you can (downloads.ini for example too), put 
them in a tar file, compress it (bzip2 or gzip) and upload it here in a bug 
report. 

Do you have special behavior of your connection between the time you start 
mldonkey and the error (ppp connection reseted, IP changed, etc ?).

-------------------------------------------------------
Date: 2002-Sep-22 13:34             By: None
I've now got two systems running the CVS version, one has this problem and the 
other doesn't.  I've had a look at the setup and the only difference I can see 
is that one is linked against libz (the working one) and the other isn't.

I've now recompiled the broken one with libz-devel installed (but it's also 
with a newer CVS version) so I'll see whether this makes a difference.

If anyone else suffering this problem has their mldonkey executable linked 
against libz, can they say so?  Or can any of the developers suggest whether 
this would/would not lead to these (or any other) problems?

Cheers,
Robin

-------------------------------------------------------
Date: 2002-Sep-22 09:33             By: None
I've got OpenBSD and this error is solved (on my system) by reducing 
max_open_connections to 37 (when i put there 38, error occures).

Please help us because such small number means small downloads (at least for 
me)!

Regards
BusteR

-------------------------------------------------------
Date: 2002-Sep-17 13:09             By: mldonkey
Not enough information to solve this bug. An important bug, though


-------------------------------------------------------
Date: 2002-Sep-16 08:26             By: None
Not just NetBSD, I have this problem on Linux as well:

After running mldonkey for under 12 hours it has 995 file descriptors allocated 
to sockets (from /proc/mldonkey_PID/fd) and only 13 client and 2 server sockets 
in use (from netstat).  There are 27 file descriptors allocated to shared & 
config files (of which 11 are marked deleted). This is with 
max_opened_connections set to only 200, and mainly downloading.

-------------------------------------------------------
Date: 2002-Sep-15 16:13             By: None
I've got the same.. I don't know what's wrong. Since it prints out a handled 
error msg someone of the developers should be able to take a look on it. 
Hopefully ;)

-------------------------------------------------------
Date: 2002-Sep-15 16:11             By: None
I've got the same.. I don't know what's wrong. Since it prints out a handled 
error msg someone of the developers should be able to take a look on it. 
Hopefully ;)

-------------------------------------------------------
Date: 2002-Sep-10 13:19             By: None
I agree with you....
I have compiled mldonkey for OpenBSD-i386 and the same problem happens.
Just try to reduce your maximum connections...
But this will not solve your problem permanently.

-------------------------------------------------------
Date: 2002-Sep-10 13:18             By: None
I agree with you....
I have compiled mldonkey for OpenBSD-i386 and the same problem happens.
Just try to reduce your maximum connections...
But this will not solve your problem permanently.

-------------------------------------------------------
Date: 2002-Sep-10 13:17             By: None
I agree with you....
I have compiled mldonkey for OpenBSD-i386 and the same problem happens.
Just try to reduce your maximum connections...
But this will not solve your problem permanently.


CC list is empty


File Attachments
****************

-------------------------------------------------------
Date: 2002-Sep-24 08:11  Name: mldonkey_debug_logs.tar.bz2  Size: 133KB   By: 
None
Logs and socket info
http://savannah.nongnu.org/bugs/download.php?group_id=1409&bug_id=985&bug_file_id=96

-------------------------------------------------------
Date: 2002-Sep-23 10:25  Name: stalls.log  Size: 22KB   By: None
Defunct socket statistics for one run
http://savannah.nongnu.org/bugs/download.php?group_id=1409&bug_id=985&bug_file_id=95


For detailed info, follow this link:
http://savannah.nongnu.org/bugs/?func=detailbug&bug_id=985&group_id=1409