[jacorb-developer] re-initializing jacorb inital naming service refrence durng run time

[David Gibbs]

One possibility is toimplement the Naming Service on a conventional cluster such as Redhat Enterprise Linux Cluster.

As an alternative we are currently investigating the use of the TAO Fault Tolerant Naming Service. The would use the features of Fault Tolerant CORBA and should allow the JacORB client to use a secondary  Naming Service with mirrored state.
Check the JacORB release notes for compatibility. Support for ACE and TAO are available along with JacORB.

This was tested by JacOBR/TAO developers and is expected to work. There are scripts that should help with testing this in "$JACORB_HOME/test/orbreinvoke/tao_ns" but they are broken in the current release(s).

I have submitted a pull request "https://github.com/spidergawd/JacORB/tree/BZ-1015" containing fixes for the build and scripts.

hth

David Gibbs
Technical Manager

IG, Cannon Bridge House
25 Dowgate Hill London EC4R 2YA
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-----Original Message-----
From: jacorb-developer-bounces~gibbsd=igindex.co.uk at lists.spline.inf.fu-berlin.de [mailto:jacorb-developer-bounces~gibbsd=igindex.co.uk at lists.spline.inf.fu-berlin.de] On Behalf Of Sabu, Alla (Alla)
Sent: 13 July 2015 14:33
To: Discussions concerning CORBA development with JacORB <jacorb-developer at lists.spline.inf.fu-berlin.de>
Subject: [jacorb-developer] re-initializing jacorb inital naming service refrence durng run time

Hi,

I am not sure if this is the right e-mail alias to ask this question. In case not, please let me know the right mail id.

I have requirement where initial reference for NamingService needs to be changed during run time.
Initially ORB will be started with "ORBInitRef.LocalNameService = corbaloc:iiop:1.2@<IP1>:9202/DefaultNamingContext".

Later, if there is a any High Availability switch, the same ORB should be able to connect to name service running on different machine (ORBInitRef.LocalNameService = corbaloc:iiop:1.2@<IP2>:9202/DefaultNamingContext".).

How we can do this please?

Do we need to shutdown running ORB and re-start it? or is it possible to update initial Nameing Service reference URL property and then call  NamingContextExtHelper.narrow( orb.resolve_initial_references( "LocalNameService" ) )

Jacorb version we are using is 3.1.

Thanks in advance.

Regards,
Sabu
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