unbound - warning: too many file descriptors requested

[macuserguru]

Hi, what should I do to resolve this, which entry in unbound.conf should be changed?

are this the right:

# Default is 4096. 65536 disables it.
# max-udp-size: 4096

or what else?

Warning message:

$ sudo /opt/local/etc/LaunchDaemons/org.macports.unbound/unbound.wrapper restart
Nov 18 16:36:31 unbound[1955:0] warning: too many file descriptors requested. The builtinmini-event cannot handle more than 1024. Config for less fds or compile with libevent
Nov 18 16:36:31 unbound[1955:0] warning: continuing with less udp ports: 465

greetings Fritz

[macuserguru]

I run the latest macports on El Capitan 10.11.6

[mf2k (Frank Schima)]

In the future, please use WikiFormatting and Cc the port maintainers (port info --maintainers unbound), if any.

Note that a "request" ticket type is only for requesting a new port.

[ken-cunningham-webuse]

looks like you might want to try the +libevent variant

$ port variants unbound
unbound has the variants:
   libevent: Build with libevent (slower, but allows use of large outgoing port
             ranges)

see also <​http://unbound.net/documentation/howto_optimise.html> section on Using Libevent

--hope this helps you. - K

[macuserguru]

I am not the macports guru, but I think I must adapt the unbound Portfile

But I running unbound on my macbook only for me - which parameter should I change in the unbound.conf?

[macuserguru]

Now - if I understand right I must reduce

# more outgoing connections
# depends on number of cores: 1024/cores - 50 
    outgoing-range: 950

But I use 2 cores

# more outgoing connections
# depends on number of cores: 1024/2 - 50 
    outgoing-range: 462

[macuserguru]

And this too?

 outgoing-range: 462
        num-queries-per-thread: 231 

are this right now?

[ken-cunningham-webuse]

Hi - no idea, sorry. I'm happy to help you with the macports end of things, but you'll need someone who knows how to configure unbound to help you if you need help beyond what is referenced in that URL I listed above.

Although someone here might be able to help you with that (like the port maintainer maybe), you'll probably have more luck on the website where unbound is kept.

For example, I see there is an unbound users mailing list here <​http://unbound.net/pipermail/unbound-users/>. Read through there - no doubt this question has been asked and answered 100 times before -- but if not, I'd suggest it would be more efficient to post a question to that list for unbound configuration help.

[macuserguru]

With

num-treads: 2

outgoing-range: 465
num-queries-per-thread: 256   

it works well now.

I - better my MBP - are the only user for unbound. I use my own DNSSEC without forwarders to resolve addresses.

[macuserguru]

Thank you for your suggestions, they help me!

[nerdling (Jeremy Lavergne)]

Closing as "invalid" since this appears to be specific to a scenario, and the fixes likely should not be forced on all users.