[ruby-core:78525] [Ruby trunk Bug#13007] Webbrick takes 5s to start when machine name looks like a real domain

Issue #13007 has been updated by Shugo Maeda.


Shyouhei Urabe wrote:
> Sad news is gethostbyname blocks under the hood in the system library, not in ruby's code.
> 
> But webrick's issue might be resolved already by issue #6559.  Can you try the latest trunk to see if that fixed your problem?

It seems not a reverse lookup issue, but a forward lookup issue.

It sounds reasonable to delay the call of Utils.getservername so that
users can override ServerName, in which case there's no need to call
Utils.getservername.


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Bug #13007: Webbrick takes 5s to start when machine name looks like a real domain
https://bugs.ruby-lang.org/issues/13007#change-61910

* Author: Michael Grosser
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: 2.3.3
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
sudo scutil --set HostName foo.local
ruby -r socket -e "Socket.gethostbyname(Socket.gethostname)"

or much simpler:

ruby -r socket -e "Socket.gethostbyname('foo.local')"

called from webrick/config.rb:24 ... Utils::getservername

Ideally this should be lazy, so I can override ServerName and avoid this ...
or not do a remote lookup at all by default



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