[avahi] accept(): Too many open files

[Mark Edwards]

On Mar 26, 2008, at 9:13 AM, Lennart Poettering wrote:
> On Wed, 26.03.08 09:04, Mark Edwards (mark at antsclimbtree.com) wrote:
>
>> This seems to solve the errors.  I guess the question now is, is this
>> a reasonable solution?  Assuming this is simply webstats overloading
>> nss-mdns, is this the way to handle it?  I'm new to avahi, and I
>> don't fully understand it yet.
>
> Yes, this is a reasonable way I guess. I picked some pretty
> conservative values for the default rlimits. Apparently they were
> chosen a bit too low for some purposes, such as yours.
>
> I wonder what the default number of parallel host name lookups is that
> those log file analyzers issue in parallel. We could then just pick
> some better default value for our rlimits that is a bit above this and
> be happy.
>
> Could you please find out how many lookups analog/webalizer issue in
> parallel for me at max?

Well, it is variable.  Webalizer doesn't do any by default, but if  
you enable dns lookups it defaults to 5 parallel, I think.  The key  
in my situation is that I have several instances of webalizer going  
at 4am, along with some awstats instances.  Clearly these team up to  
exceed 30 lookups.

300 seems good to me, if you think that isn't too optimistic  
performance-wise.  Ultimately, this number is going to vary wildly  
depending on the installation.

--
Mark Edwards