Re: [Duplicity-talk] [Errno 24] Too many open files

[Kenneth Loafman]

Robin Smidsrød wrote:
> Kenneth Loafman wrote:
>> Robin Smidsrød wrote:
>>  
>>>
>>> $ cat /proc/sys/fs/file-max
>>> 126923
>>>     
>>
>> This is the system-wide limit on open files (seems a bit low for a
>> server).
> It's a home server which is mainly being used for pictures and music. I
> thought 126k was abundantly enough for a server with this function. At
> normal usage lsof shows about 2100 entries.
> 
>>   The user limit can be seen with a 'ulimit -n' and can be set
>> higher with a 'ulimit -n 4096' style command, as root, to work around
>> this problem.  I would suggest a doubling of the current ulimit. 
> # ulimit -n
> 1024
> 
> I guess this is probably the "fault", if you could call it that. The big
> question is, shouldn't 1024 file descriptors be enough to run a
> successfull backup?
> 
> My next question is more a matter of how I can set the ulimit so that it
> influences cron. As I mentioned earlier, I'm running Ubuntu 8.10.
>>  If the
>> system limit is being reached somehow, then look here:
>>
>> http://www.linuxforums.org/forum/redhat-fedora-linux-help/64716-where-chnage-file-max-permanently.html
>>
>> or if that wraps:
>> http://tinyurl.com/5caer7
>>
>> I'm going to need to chase this one some more it looks like.  I thought
>> it was fixed.
>>   
> I'm going to assume that this means that you consider it a bug. I'll
> wait for the response once you've had time to look into it more thoroughly.

I consider it a possible bug, but I've been unable to reproduce it on my
systems (8.04, Redhat).  It may be something introduced in 8.10, or it
may be something unique to your setup.

When I run:
   $ lsof -p `pgrep -f duplicity`,`pgrep -d, -f gpg`
I don't see anything more than I expect to see.  Duplicity and the two
gpg instances have a total of ~120 files open at any time and the list
is not growing.

Please try the workarounds and see if they help.

...Ken

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