Re: Communication Help

[dthompson characterlink net (Darrin Thompson)]

An ORBit IOR decoder would be really nice for diagnosing these problems.

Can you verify that the programs work when they are on the same host? 

Is the SERVER configured to listen on a TCP socket? Use ~/.orbitrc as you 
did or there is a command line variable that does the same thing. It 
doesn't matter at all how the client is configured. It will find the 
server from the info in the IOR.

AFTER you reconfigure the server you have to make sure the client is 
using the new IOR. The old IOR will send the client to the wrong place.

I deleted my ORBit 5 source from my machine so I can't remember, is he 
spelling ORBITIIOPIPv4 correctly?

Whomever it was that said that GNOME apps need to explicitly turn off TCP 
sockets, I agree with them. I can see the wisdom of sticking with the 
CORBA standard by default or providing an additional config file for 
GNOME apps or something else like that. This seems to happen to newbies 
way too often.

Darrin

>>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<<

On 8/29/00, 2:21:33 PM, Christopher Favret <chris_favret@yahoo.com> wrote 
regarding Communication Help:


> I am developing ORBs with ORBit-0.5.0 and CORBA::ORBit
> 0.4.2 on RedHat Linux 6.2.

> When I try to run the ORBs from seperate machines they
> won't talk to each other.  I continually get the
> following error:

> Exception: CORBA::COMM_FAILURE
> ('IDL:omg.org/CORBA/COMM_FAILURE:1.0')
>     (0, COMPLETED_NO)
>     Communication failure

> I have verified that the IOR is correct, the client
> ORB has it, and that the two machines can 'see' each
> other on the network.  If I try to run the ORBs on the
> same machine, it works fine.  Mr. Talyor said the
> problem could be that "ORBit is configured to only
> open UNIX domain sockets by default.
> You might want to try adding the line:

>   ORBIIOPIPv4=1

>  to /etc/orbitrc."

> However, I do not have this file.  At the suggestion
> of Mr. Lee, I created the file, but the problem
> persists.  Today I completely re-installed RedHat
> Linux 6.2 on two systems (selecting the install
> everything option), installed CORBA::ORBit and Error
> and tried running the server/client example that came
> with CORBA::ORBit.  It gave me the same error.

> I have been working on this problem for more than
> three weeks now.  I have tried a multitude of things
> including adding "ALL: ALL" to the /etc/hosts.allow
> file.  I would greatly appreciate any suggestions
> anyone has.  Thanks in advance.

> Chris

> =====
> Christopher P. Favret
> chris_favret@yahoo.com

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