Re: [orbitcpp-list] running orbitcpp client and server programs from separate machines

[Phil D. <ph...@or...>]

Bill Lasley writes:
 > Hi,
 > 
 > I installed ORBit-0.5.0-1, ORBit-devel-0.5.0-1,  orbitcpp-0.22-1, and
 > orbitcpp-0.22-1 on three machines, all running RedHat 6.1.  As far as
I
 > can tell, all three machines have similar network configurations.
 > 
 > I built and ran the simple helloworld sample on various combinations
of
 > these machines (call them A, B, and C).
 > 
 > I perverted the sample slightly so that the programs could read and
 > write IOR strings from an LDAP server on A.
 > 
 > Running server on A and client on A works.
 > Running server on B and client on B works.
 > Running server on C and client on C works.
 > 
 > Running server on A and client on B works.
 > Running server on B and client on A works.
 > 
 > Running server on A and client on C causes the client to crash and
dump
 > core.
 > Running server on C and client on A causes the client to crash and
dump
 > core.
 > 
 > I added code to trap exceptions in the client program, and it appears
to
 > be a system exception, minor code of 5, thrown when the client
program
 > calls the _narrow() function.
 > 
 > I can't figure out why the sample works for A and B but not for A and
 > C.  I thought maybe C might have too low a limit on open file
 > descriptors, but that was not the case (1024 for all machines).
 > 
 > Is there a particular setting that causes client crashes (untrapped
 > exception, minor code 5) when the orbitcpp helloworld samples are run
on
 > two separate machines?
 > 
 > The ORBit source code looks like a steep learning curve, so I thought
 > I would ask around before I go any further into the source, in case
 > there is something very simple wrong here.   I am not very
knowledgeable
 > about CORBA in general, which is why I used the ldap server instead
of
 > the orbit name server.
 > 
 > If anybody has any suggestions, I am (like Ross Perot) all ears.
 > 

Hi Bill,

There was a dodgy memory bug in that version, and it didn't get fixed
(because I couldn't repeat it ;-) until version 0.25.1.
I suggest you get ORBit-0.5.1 and orbitcpp-0.25.1 (from
ftp://orbitcpp.sourceforge.net/pub/orbitcpp)

Hope this helps,

Phil.