From: Eric Hodel <drbrain@...7.net>
Date: 2005-03-30T10:26:37+09:00
Subject: Re: FreeBSD Rubyists? Do Remote Objects work for you?

On 29 Mar 2005, at 17:09, Miles Keaton wrote:

> On Wed, 30 Mar 2005 09:54:20 +0900, Mark Probert <probertm@acm.org> 
> wrote:
>>  On Tuesday 29 March 2005 15:26, Miles Keaton wrote:
>>> /usr/local/lib/ruby/1.8/drb/drb.rb:724:in `open': druby://server:8787
>>> #<Errno::ETIMEDOUT: Operation timed out - connect(2)> 
>>> (DRb::DRbConnError)
>>>
>>> (All platforms die at that exact same line.  Same error.)
>>
>> Your problem is in here, somewhere, I would think ;-)
>>
>> If connect is timing out, there is something that is blocking it, 
>> router,
>> filter, firewall or whatever.  I don't think that this you may have a 
>> network
>> config issue on your hands.
>
> I would have thought so, except that everything else in DRb works
> *except* passing an object by reference.
>
> I've spent a whole day testing all kinds of dRuby client-server-remote
> things and they all work fine... until you try to call a method on a
> remote object that's been passed by reference.
>
> I don't understand how (or if) objects passed by reference would have
> such a different TCP/IP packet.
>
> Can anyone imagine what might be blocking this kind of activity, but
> not others?   I've been poring through the drb.rb code for an hour
> now, and can't figure out what it might be.

I had a similar problem, the server was connecting back to a client on 
a port that wasn't open.  I would get a connection refused, rather than 
a timeout.  This is on 4.x, but I haven't had time to look into it 
further.

-- 
Eric Hodel - drbrain@segment7.net - http://segment7.net
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