From: Laurent Sansonetti <laurent.sansonetti@...>
Date: 2008-05-29T15:00:54+09:00
Subject: Re: DRb Problems with Mac OS X 10.5.3

Thanks for the report, we are of course very sorry about that. Ruby
didn't change in Mac OS X 10.5.3, so we are currently investigating
possible regressions in the underlying frameworks. We will let you
know.

Following Andy's idea, what about the following as a temporary fix?
Seems to work for DRb servers with a port of 0 (which seems to be the
default). Apparently DRb servers which explicitly bind to a non 0 port
are not affected by this regression.

class DRb::DRbTCPSocket
  class << self
    alias parse_uri_orig parse_uri
    def parse_uri(*args)
      ary = parse_uri_orig(*args)
      ary[1] = nil if ary[1] == 0
      ary
    end
  end
end

Laurent

On Wed, May 28, 2008 at 10:11 PM, Andy Keep <akeep@robotman.org> wrote:
> I've not done too much Ruby socket programming, but it seems to be that
> it doesn't like 0 as a service number, because it is interpreting it as
> the real service 0, instead of the empty service... if you use nil
> instead it works fine... you might be able to patch dRb to use that as a
> work around.
>
>
> irb(main):001:0> require 'socket'
> => true
> irb(main):011:0> Socket.getaddrinfo(Socket.gethostname, 0,
> Socket::AF_INET, Socket::SOCK_STREAM, nil, Socket::AI_CANONNAME)
> SocketError: getaddrinfo: nodename nor servname provided, or not known
>  from (irb):11:in `getaddrinfo'
>  from (irb):11
>  from :0
> irb(main):012:0> Socket.getaddrinfo(Socket.gethostname, nil,
> Socket::AF_INET, Socket::SOCK_STREAM, nil, Socket::AI_CANONNAME)
> => [["AF_INET", 0, "192.168.1.95", "192.168.1.95", 2, 1, 6]]
>
>
> Kurt Schrader wrote:
>> No solution yet, but it looks like something has changed in some
>> underlying networking library, as base socket handing methods seem to be
>> broken:
>>
>> [kschrader@einstein:~]$ irb
>>>> require 'socket'
>> => true
>>>> Socket.getaddrinfo(Socket.gethostname, 0, Socket::AF_INET, Socket::SOCK_STREAM, nil, Socket::AI_CANONNAME)
>> SocketError: getaddrinfo: nodename nor servname provided, or not known
>>   from (irb):2:in `getaddrinfo'
>>   from (irb):2
>>>>
>>
>>
>> Eric Ly wrote:
>>> I'm running into the same problem too having just upgraded.  Is there a
>>> solution?
>>>
>>>
>>> Eric
>>>
>>> Kurt Schrader wrote:
>>>> It looks like the Mac OS X 10.5.3 upgrade breaks DRb when it's trying to
>>>> open a TCPSocket.
>>>>
>>>> Looking into it now, but be warned:
>>>>
>>>> /opt/local/lib/ruby/1.8/drb/drb.rb:865:in `initialize': getaddrinfo:
>>>> nodename nor servname provided, or not known (SocketError)
>>>> from /opt/local/lib/ruby/1.8/drb/drb.rb:865:in `open'
>>>> from /opt/local/lib/ruby/1.8/drb/drb.rb:865:in `open_server'
>>>>
>>>> -Kurt
>
> --
> Posted via http://www.ruby-forum.com/.
>
>