getting ORBit examples to work across the network

[Amir Afrah]

Hi all,

I have been trying to get the simple example of echo-server/echo-client to work on 2 machines on the network but Ive had no luck for almost 2 days, I can run both server and client on a single machine but when i place the client on a different machine I get the following error massage:

** ERROR **: service raised exception : IDL:omg.org/CORBA/COMM_FAILURE:1.0

I have been searching on google and the only issue that is ever brought up is that IIOP over IP server sockets in default setting and there is 2 methods to change that setting 1) by adding ORBIIOPIPv4=1 in /etc/orbitrc or ~/.orbitrc 2) by adding --ORBIIOPIPv4=1 to command line. I have tried both of these extensively and no luck, any help regarding this would be greatly appriciated.

Thanks!

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[Jules Colding]

Hi Amir,


On Mon, 2008-02-04 at 18:39 -0800, Amir Afrah wrote:

> Hi all,
>
> I have been trying to get the simple example of
> echo-server/echo-client to work on 2 machines on the network but Ive
> had no luck for almost 2 days, I can run both server and client on a
> single machine but when i place the client on a different machine I
> get the following error massage:
>
> ** ERROR **: service raised exception :
> IDL:omg.org/CORBA/COMM_FAILURE:1.0
>
> I have been searching on google and the only issue that is ever
> brought up is that IIOP over IP server sockets in default setting and
> there is 2 methods to change that setting 1) by adding ORBIIOPIPv4=1
> in /etc/orbitrc or ~/.orbitrc 2) by adding --ORBIIOPIPv4=1 to command
> line. I have tried both of these extensively and no luck, any help
> regarding this would be greatly appriciated.

I just need to give the client a reference to the server. You can do
this by stringifying the server object, put the ior in a text file and
feed this to the client.

There are more elegant methods (corbaloc) but something like the above
should be relatively easy to set up.

HTH,
  jules


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[Kuang-Chun Cheng]

Hi Amir,

Make sure your client can see server by hostname.  Two hosts connected
OK by IP address is not enough for ORBit2, AFAIK.

Regards
KC

On Feb 5, 2008 3:58 PM, Jules Colding <colding@...> wrote:

> Hi Amir,
>
>
> On Mon, 2008-02-04 at 18:39 -0800, Amir Afrah wrote:
> > Hi all,
> >
> > I have been trying to get the simple example of
> > echo-server/echo-client to work on 2 machines on the network but Ive
> > had no luck for almost 2 days, I can run both server and client on a
> > single machine but when i place the client on a different machine I
> > get the following error massage:
> >
> > ** ERROR **: service raised exception :
> > IDL:omg.org/CORBA/COMM_FAILURE:1.0
> >
> > I have been searching on google and the only issue that is ever
> > brought up is that IIOP over IP server sockets in default setting and
> > there is 2 methods to change that setting 1) by adding ORBIIOPIPv4=1
> > in /etc/orbitrc or ~/.orbitrc 2) by adding --ORBIIOPIPv4=1 to command
> > line. I have tried both of these extensively and no luck, any help
> > regarding this would be greatly appriciated.
>
> I just need to give the client a reference to the server. You can do
> this by stringifying the server object, put the ior in a text file and
> feed this to the client.
>
> There are more elegant methods (corbaloc) but something like the above
> should be relatively easy to set up.
>
> HTH,
>   jules
>
>
> _______________________________________________
> orbit-list mailing list
> orbit-list@...
> http://mail.gnome.org/mailman/listinfo/orbit-list
>

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[Jules Colding]

On Tue, 2008-02-05 at 16:03 +0800, Kuang-Chun Cheng wrote:
> Hi Amir,
>
> Make sure your client can see server by hostname.  Two hosts connected
> OK by IP address is not enough for ORBit2, AFAIK.

It is:

2005-07-25  Jules Colding  <colding@...>

        * src/orb/orb-core/corba-orb.c: Added new ORB_init option, ORBNetID.
        Valid values for a hypothetical local host (FQDN:thor.test.com, IP:10.0.3.2):
           "local": all attempts to resolve the local host will be done using "localhost"
           "short": all attempts to resolve the local host will be done using "thor".
           "fqdn" : all attempts to resolve the local host will be done using "thor.test.com".
           "ipaddr: all attempts to resolve the local host will be done using "10.0.3.2".
        The new option will be evaluated after ORBLocalOnly but ORBLocalOnly will always take
        precedence.

Best regards,
  jules

> Regards
> KC
>
> On Feb 5, 2008 3:58 PM, Jules Colding <colding@...> wrote:
> > Hi Amir,
> >
> >
> > On Mon, 2008-02-04 at 18:39 -0800, Amir Afrah wrote:
> > > Hi all,
> > >
> > > I have been trying to get the simple example of
> > > echo-server/echo-client to work on 2 machines on the network but Ive
> > > had no luck for almost 2 days, I can run both server and client on a
> > > single machine but when i place the client on a different machine I
> > > get the following error massage:
> > >
> > > ** ERROR **: service raised exception :
> > > IDL:omg.org/CORBA/COMM_FAILURE:1.0
> > >
> > > I have been searching on google and the only issue that is ever
> > > brought up is that IIOP over IP server sockets in default setting and
> > > there is 2 methods to change that setting 1) by adding ORBIIOPIPv4=1
> > > in /etc/orbitrc or ~/.orbitrc 2) by adding --ORBIIOPIPv4=1 to command
> > > line. I have tried both of these extensively and no luck, any help
> > > regarding this would be greatly appriciated.
> >
> > I just need to give the client a reference to the server. You can do
> > this by stringifying the server object, put the ior in a text file and
> > feed this to the client.
> >
> > There are more elegant methods (corbaloc) but something like the above
> > should be relatively easy to set up.
> >
> > HTH,
> >   jules
> >
> >
> > _______________________________________________
> > orbit-list mailing list
> > orbit-list@...
> > http://mail.gnome.org/mailman/listinfo/orbit-list
> >

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[Kuang-Chun Cheng]

On Feb 5, 2008 5:27 PM, Jules Colding <colding@...> wrote:

>
> On Tue, 2008-02-05 at 16:03 +0800, Kuang-Chun Cheng wrote:
> > Hi Amir,
> >
> > Make sure your client can see server by hostname.  Two hosts connected
> > OK by IP address is not enough for ORBit2, AFAIK.
>
> It is:
>
> 2005-07-25  Jules Colding  <colding@...>
>
>         * src/orb/orb-core/corba-orb.c: Added new ORB_init option, ORBNetID.

Cool ... I did not know this option before :-)

KC

>         Valid values for a hypothetical local host (FQDN:thor.test.com, IP:10.0.3.2):
>            "local": all attempts to resolve the local host will be done using "localhost"
>            "short": all attempts to resolve the local host will be done using "thor".
>            "fqdn" : all attempts to resolve the local host will be done using "thor.test.com".
>            "ipaddr: all attempts to resolve the local host will be done using "10.0.3.2".
>         The new option will be evaluated after ORBLocalOnly but ORBLocalOnly will always take
>         precedence.
>
> Best regards,
>   jules
>
>
>
>
> > Regards
> > KC
> >
> > On Feb 5, 2008 3:58 PM, Jules Colding <colding@...> wrote:
> > > Hi Amir,
> > >
> > >
> > > On Mon, 2008-02-04 at 18:39 -0800, Amir Afrah wrote:
> > > > Hi all,
> > > >
> > > > I have been trying to get the simple example of
> > > > echo-server/echo-client to work on 2 machines on the network but Ive
> > > > had no luck for almost 2 days, I can run both server and client on a
> > > > single machine but when i place the client on a different machine I
> > > > get the following error massage:
> > > >
> > > > ** ERROR **: service raised exception :
> > > > IDL:omg.org/CORBA/COMM_FAILURE:1.0
> > > >
> > > > I have been searching on google and the only issue that is ever
> > > > brought up is that IIOP over IP server sockets in default setting and
> > > > there is 2 methods to change that setting 1) by adding ORBIIOPIPv4=1
> > > > in /etc/orbitrc or ~/.orbitrc 2) by adding --ORBIIOPIPv4=1 to command
> > > > line. I have tried both of these extensively and no luck, any help
> > > > regarding this would be greatly appriciated.
> > >
> > > I just need to give the client a reference to the server. You can do
> > > this by stringifying the server object, put the ior in a text file and
> > > feed this to the client.
> > >
> > > There are more elegant methods (corbaloc) but something like the above
> > > should be relatively easy to set up.
> > >
> > > HTH,
> > >   jules
> > >
> > >
> > > _______________________________________________
> > > orbit-list mailing list
> > > orbit-list@...
> > > http://mail.gnome.org/mailman/listinfo/orbit-list
> > >
>
>

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[Amir Afrah]

Thanks for the replies guys,

So I figured out that the issue is with the way that the hostname is obtained: The command "/bin/hostname" on both of the machines that Im running simply return the machines name (i.e. machine-x) and this is what is used in the ior file, when i manually change the machines name to its IP address this issue is resolved since "/bin/hostname" then returns the IP address. Although this works it seems like a hack and Im sure there is a better way of doing it, any suggestions?
 Jules, I dont really know how to set the ORB_init option to use "ipaddr" since it doesnt seem to be doing it automatically. Thanks alot!!

Amir
 

On Feb 5, 2008 1:27 AM, Jules Colding <colding@...> wrote:

On Tue, 2008-02-05 at 16:03 +0800, Kuang-Chun Cheng wrote:
> Hi Amir,
>
> Make sure your client can see server by hostname.  Two hosts connected
> OK by IP address is not enough for ORBit2, AFAIK.

It is:

2005-07-25  Jules Colding  <colding@...>

       * src/orb/orb-core/corba-orb.c: Added new ORB_init option, ORBNetID.
       Valid values for a hypothetical local host (FQDN:thor.test.com, IP:10.0.3.2):
          "local": all attempts to resolve the local host will be done using "localhost"
          "short": all attempts to resolve the local host will be done using "thor".
          "fqdn" : all attempts to resolve the local host will be done using "thor.test.com".
          "ipaddr: all attempts to resolve the local host will be done using "10.0.3.2".
       The new option will be evaluated after ORBLocalOnly but ORBLocalOnly will always take
       precedence.

Best regards,
 jules

> Regards
> KC
>
> On Feb 5, 2008 3:58 PM, Jules Colding <colding@...> wrote:
> > Hi Amir,
> >
> >
> > On Mon, 2008-02-04 at 18:39 -0800, Amir Afrah wrote:
> > > Hi all,
> > >
> > > I have been trying to get the simple example of
> > > echo-server/echo-client to work on 2 machines on the network but Ive
> > > had no luck for almost 2 days, I can run both server and client on a
> > > single machine but when i place the client on a different machine I
> > > get the following error massage:
> > >
> > > ** ERROR **: service raised exception :
> > > IDL:omg.org/CORBA/COMM_FAILURE:1.0
> > >
> > > I have been searching on google and the only issue that is ever
> > > brought up is that IIOP over IP server sockets in default setting and
> > > there is 2 methods to change that setting 1) by adding ORBIIOPIPv4=1
> > > in /etc/orbitrc or ~/.orbitrc 2) by adding --ORBIIOPIPv4=1 to command
> > > line. I have tried both of these extensively and no luck, any help
> > > regarding this would be greatly appriciated.
> >
> > I just need to give the client a reference to the server. You can do
> > this by stringifying the server object, put the ior in a text file and
> > feed this to the client.
> >
> > There are more elegant methods (corbaloc) but something like the above
> > should be relatively easy to set up.
> >
> > HTH,
> >   jules
> >
> >
> > _______________________________________________
> > orbit-list mailing list
> > orbit-list@...
> > http://mail.gnome.org/mailman/listinfo/orbit-list
> >

--
Amir Afrah
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[Jules Colding]

Hi Amir,

On Tue, 2008-02-05 at 14:55 -0800, Amir Afrah wrote:
>  Jules, I dont really know how to set the ORB_init option to use
> "ipaddr" since it doesnt seem to be doing it automatically. Thanks
> alot!!

Just add this command line parameter to your app:

        --ORBNetID=ipaddr


You can also customize argv and create the ORB explicitly:

static CORBA_ORB
create_orb(CORBA_Environment *ev)
{
        CORBA_ORB orb = CORBA_OBJECT_NIL;
        int init_argc = 2;
        char **init_argv = (char**)malloc(sizeof(char*) * (init_argc));
        if (!init_argv)
                return CORBA_OBJECT_NIL;

        init_argv[0] = "DUMMY_ARGV0";
        init_argv[1] = "--ORBNetID=ipaddr";

        // initialize the ORB
        orb = CORBA_ORB_init(&init_argc, init_argv, "orb_orbit-io-thread", ev);
        if (ORBIT2_EX(ev))
                orb = CORBA_OBJECT_NIL;

        free(init_argv);

        return orb;
}

HTH,
  jules

> Amir
>  
> On Feb 5, 2008 1:27 AM, Jules Colding <colding@...> wrote:
>        
>         On Tue, 2008-02-05 at 16:03 +0800, Kuang-Chun Cheng wrote:
>         > Hi Amir,
>         >
>         > Make sure your client can see server by hostname.  Two hosts
>         connected
>         > OK by IP address is not enough for ORBit2, AFAIK.
>        
>        
>         It is:
>        
>         2005-07-25  Jules Colding  <colding@...>
>        
>                * src/orb/orb-core/corba-orb.c: Added new ORB_init
>         option, ORBNetID.
>                Valid values for a hypothetical local host
>         (FQDN:thor.test.com, IP:10.0.3.2):
>                   "local": all attempts to resolve the local host will
>         be done using "localhost"
>                   "short": all attempts to resolve the local host will
>         be done using "thor".
>                   "fqdn" : all attempts to resolve the local host will
>         be done using "thor.test.com".
>                   "ipaddr: all attempts to resolve the local host will
>         be done using "10.0.3.2".
>                The new option will be evaluated after ORBLocalOnly but
>         ORBLocalOnly will always take
>                precedence.
>        
>         Best regards,
>          jules
>        
>        
>        
>        
>         > Regards
>         > KC
>         >
>         > On Feb 5, 2008 3:58 PM, Jules Colding <colding@...>
>         wrote:
>         > > Hi Amir,
>         > >
>         > >
>         > > On Mon, 2008-02-04 at 18:39 -0800, Amir Afrah wrote:
>         > > > Hi all,
>         > > >
>         > > > I have been trying to get the simple example of
>         > > > echo-server/echo-client to work on 2 machines on the
>         network but Ive
>         > > > had no luck for almost 2 days, I can run both server and
>         client on a
>         > > > single machine but when i place the client on a
>         different machine I
>         > > > get the following error massage:
>         > > >
>         > > > ** ERROR **: service raised exception :
>         > > > IDL:omg.org/CORBA/COMM_FAILURE:1.0
>         > > >
>         > > > I have been searching on google and the only issue that
>         is ever
>         > > > brought up is that IIOP over IP server sockets in
>         default setting and
>         > > > there is 2 methods to change that setting 1) by adding
>         ORBIIOPIPv4=1
>         > > > in /etc/orbitrc or ~/.orbitrc 2) by adding
>         --ORBIIOPIPv4=1 to command
>         > > > line. I have tried both of these extensively and no
>         luck, any help
>         > > > regarding this would be greatly appriciated.
>         > >
>         > > I just need to give the client a reference to the server.
>         You can do
>         > > this by stringifying the server object, put the ior in a
>         text file and
>         > > feed this to the client.
>         > >
>         > > There are more elegant methods (corbaloc) but something
>         like the above
>         > > should be relatively easy to set up.
>         > >
>         > > HTH,
>         > >   jules
>         > >
>         > >
>         > > _______________________________________________
>         > > orbit-list mailing list
>         > > orbit-list@...
>         > > http://mail.gnome.org/mailman/listinfo/orbit-list
>         > >
>        
>        
>
>
>
> --
> Amir Afrah

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[Jules Colding]

On Wed, 2008-02-06 at 09:05 +0100, Jules Colding wrote:

> You can also customize argv and create the ORB explicitly:
>
> static CORBA_ORB
> create_orb(CORBA_Environment *ev)
> {
> CORBA_ORB orb = CORBA_OBJECT_NIL;
> int init_argc = 2;
> char **init_argv = (char**)malloc(sizeof(char*) * (init_argc));
> if (!init_argv)
> return CORBA_OBJECT_NIL;
>
> init_argv[0] = "DUMMY_ARGV0";
> init_argv[1] = "--ORBNetID=ipaddr";
>
> // initialize the ORB
> orb = CORBA_ORB_init(&init_argc, init_argv, "orb_orbit-io-thread", ev);
> if (ORBIT2_EX(ev))
> orb = CORBA_OBJECT_NIL;
>
> free(init_argv);
>
> return orb;
> }

Forgot this:

#undef ORBIT2_EX
#define ORBIT2_EX(_ev_) ((NULL != _ev_) && ((_ev_)->_major != CORBA_NO_EXCEPTION))


--
  jules


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[Amir Afrah]

 I just included ORBNetID=ipaddr in ~/.orbitrc and it seems to take care of it
Thanks alot for the help!

On Feb 6, 2008 12:11 AM, Jules Colding <colding@...> wrote:

On Wed, 2008-02-06 at 09:05 +0100, Jules Colding wrote:
> You can also customize argv and create the ORB explicitly:
>
> static CORBA_ORB
> create_orb(CORBA_Environment *ev)
> {
>       CORBA_ORB orb = CORBA_OBJECT_NIL;
>       int init_argc = 2;
>       char **init_argv = (char**)malloc(sizeof(char*) * (init_argc));
>       if (!init_argv)
>               return CORBA_OBJECT_NIL;
>
>       init_argv[0] = "DUMMY_ARGV0";
>       init_argv[1] = "--ORBNetID=ipaddr";
>
>       // initialize the ORB
>       orb = CORBA_ORB_init(&init_argc, init_argv, "orb_orbit-io-thread", ev);
>       if (ORBIT2_EX(ev))
>               orb = CORBA_OBJECT_NIL;
>
>       free(init_argv);
>
>       return orb;
> }

Forgot this:

#undef ORBIT2_EX
#define ORBIT2_EX(_ev_) ((NULL != _ev_) && ((_ev_)->_major != CORBA_NO_EXCEPTION))


--
 jules

--
Amir Afrah
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