Re: Deployment of OSGi service bundles in Fuse ESB/SMX in production

[John Dubchak <jo...@johndubchak.com>]

Hi,

Just my opinion, but the idea behind decomposing your application into 
bundles, beyond a decoupled modular structure, is that you avoid bad 
side-effects on dependent bundles when deploying new bundles.

Restarting SMX isn't necessary when a new bundle is deployed as the 
container will see that a bundles dependencies are no longer available 
and should transition its lifecycle to a non-running state.  While there 
are use-cases for restarting SMX, deployment of new OSGi bundles is not 
one of them, IMO.

Simply deploying the new bundle and starting it *should* signal SMX to 
transition the dependent bundle back to an Active (running) state.

Also, deploying a bundle and starting it can be accomplished in the same 
step:

osgi:install -s ....

The "-s" above tells the installer to start the bundle if all of its 
dependencies are resolved after the deployment.

John

On 2/19/14, 8:55 PM, nprajeshgowda wrote:
> Hi,
>
>           I had tried the similar approach, but dint wanted to share the
> approach and was looking if there are other approaches which is commonly
> practiced in production environment.
>
>           Here is what i was trying.
>
>
>           1. Create a new bundle user-camel-bnd-1.0.1 and place it in
> local-repo folder
>           2. Create a new karaf features file and place the xml file in
> local-repo folder
>           3. Create a new "org.apache.karaf.features.cfg" which has the
> latest karaf features version
>           4. Restart servicemix, so that the new features are loaded.
>
>            Is this a good approach ? or is there something which we can do
> without restarting servicemix
>
>            With the approach you have specified, if we uninstall the old
> osgi-bnd and place the new bundle in deploy, in case of servicemix restart
> will the old bundle not come up ?? ending up in two bundles running.
>
>
> Br,
> Rajesh
>
>
>
> --
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