[Samba] Help 2.2.5 causing me to run out of filedescriptors

[drenning, bruce]

Thanks a lot for your prompt (and thorough) reply. you saved my bacon.

I doubled file-max & now:

# cat /proc/sys/fs/file-nr
8935    72      16384

I'm running squid w/ a 2 GB cache & 250 - 270 samba users (smbstatus -b |nl
shows 262 currently). 512 MB RAM, 512 MB swap.

I'll look into the smb.conf params as well. Thanks again.



> -----Original Message-----
> From: Jon Gerdes [mailto:GERDESJ at whl.co.uk]
> Sent: Wednesday, July 31, 2002 12:31 PM
> To: bdrenni at catholicrelief.org; samba at lists.samba.org
> Subject: Re: [Samba] Help 2.2.5 causing me to run out of 
> filedescriptors
> 
> 
> Bruce
> 
> It really depends on your number of users etc etc etc etc.  
> For example I am seeing:
> 
> [root at voyager /root]# cat /proc/sys/fs/file-nr
> 18608   12253   30000
> 
> Now this box does quite a few things as well as Samba and I 
> regularly see >600 processes in total.  I would suggest that 
> you should set file-max to something daft like 30000 and then 
> keep an eye on the numbers in file-nr
> 
> (from  /usr/src/linux/Documentation/sysctl/fs.txt)
> ==============================================================
> file-max & file-nr:
> 
> The kernel allocates file handles dynamically, but as yet it
> doesn't free them again.
> 
> The value in file-max denotes the maximum number of file-
> handles that the Linux kernel will allocate. When you get lots
> of error messages about running out of file handles, you might
> want to increase this limit.
> 
> The three values in file-nr denote the number of allocated
> file handles, the number of used file handles and the maximum
> number of file handles. When the allocated file handles come
> close to the maximum, but the number of actually used ones is
> far behind, you've encountered a peak in your usage of file
> handles and you don't need to increase the maximum.
> 
> ==============================================================
> 
> Could you give us an idea of usage eg "smbstatus -b | nl" at 
> various times during the day will give you an idea of the 
> number of connections.  A look at "lsof" may be handy.
> 
> There are several limiters that can be put in smb.conf:
> 
> max smbd processes
> max open files  
> deadtime
> 
> I am not an expert but I would suggest that you probably just 
> need to up the limit.  Samba has come a long way since 2.0.x 
> and probably does need a few extra files ...
> 
> Incidently a smart new kernel probably wouldn't go amiss, I 
> seem to be getting much better performance with samba 2.2.5 
> and kernel 2.4.18 than previous combinations although I can't 
> point to benchmark results.
> 
> Cheers
> Jon Gerdes
> 
> >>> "drenning, bruce" <bdrenni at catholicrelief.org> 31/07/2002 
> 17:05:17 >>>
> I've been running Samba & Squid on a RH linux server for years. I'm
> currently running:
> 
> kernel - 2.4.9-31
> squid - 2.4STABLE-6
> /home - 100 GB Reiserfs partition
> 
> I just upgraded samba from 2.0.10 to 2.2.5 this morning. Now, 
> the server is
> running out of filedescriptors. I have never had this problem 
> before. What
> is 2.2.5 doing differently? How can I resolve this problem? 
> Please help,
> this is causing big problems.
> 
> currently cat /proc/sys/fs/file-max returns 8192. Should I 
> bump this up or
> would this be treating a sympton instead of the root cause?
> 
> 
> 
> 
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