[Unbound-users] warning: increased limit(open files)

[W.C.A. Wijngaards]

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Hi Leo,

On 12/03/2012 01:50 PM, Leo Baltus wrote:
> Op 03/12/2012 om 13:16:47 +0100, schreef W.C.A. Wijngaards:
>> On 12/03/2012 01:01 PM, Leo Baltus wrote:
>>> On starting unbound I get:
>>> 
>>> [1354535821] unbound[13607:0] warning: increased limit(open
>>> files) from 16384 to 33142
>>> 
>>> Shouldn't this be sent tot syslog or logfile?
>> 
>> It increases ulimit while it holds root privileges.  It then
>> chroots and drops user privileges.  It does not have the syslog
>> or logfile open to log to at the time when this call happens.
>> 
> 
> Ah, that explains.
> 
> Still, it is unexpected to have something thrown out when it is
> 'only' a warning.
> 
> What do you expect us to do with this warning?

Unbound is using root privileges to gain extra OS resources, resources
that are limited for normal processes.  This messages is to tell you
that it did so, and how many resources it took.  What you do is up to
you: simply ignore it, calculate the number of buffers on the system,
configure unbound to use less resources, ... (or set ulimit higher
beforehand, and you get no warning).

Best regards,
   Wouter

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