Hi Sergiy,

It depends at which level.

When the cluster is "live", you can perform cluster:bundle-update / cluster:bundle-install, the event will trigger an update on the nodes.

The question is more when a node joins the cluster (and so the Synchronizer is called). IMHO, it's not a good idea to introduce a timestamp. The synchronizer (during pull) can do: if the bundle is on the cluster, and the cluster is also present locally on the node, then we trigger bundle update (systematically).


On 09/15/2016 01:34 PM, Sergiy Shyrkov wrote:
Hello guys,

I would like to ask you about the recommended way of implementing a
"bundle update" in cluster with Karaf Cellar.
Basically, Cellar has no notion of an "update" for existing bundle. As
we are working also with SNAPSHOTs of bundles we are missing the
possibility to "update" a bundle in cluster.

What would be possible solutions for this?
We were looking at adjusting org.apache.karaf.cellar.bundle.BundleState
to introduce lastUpdated timestamp there and in the BundleSynchronizer
check it and perform bundle.update() for those bundles, where "cluster"
lastUpdated is after the local one.

Thank you in advance!

Kind regards

Jean-Baptiste Onofré
Talend - http://www.talend.com

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