Cluster-wide patch distribution will be handle by the Operations Center.

Azeez


On Tue, Jan 28, 2014 at 12:40 PM, Ruchira Wageesha <[email protected]> wrote:

>
>>>
>>> If we patch a webapp, then we will do it only on master node and the
>>> patching process is for that. Synchronizing workers with master is a
>>> different task which belongs to depsync. Why do we need to mix up the
>>> things? May be I am missing something?
>>>
>>
>> No, you can't have patching only at master node and let dep-synch to take
>> care the rest of the patching. This will leave the system in a stage where
>> the slave nodes depends on dep-sych for the patching to work. If we
>> introduce patching process, it should be consistence across all the nodes
>> (servers). This is how we patch OSGi bundles.
>>
>>>
>>>>>>>>>>>>>>  This might be a different conversation, but just to share
> my idea....
>
> Why dep-synch doesn't sync the patches is because the way we have limited
> our own depsync model. i.e. We have used depsync only for synching so
> called artifacts.
>
> But assume, if we had a kernal with just an update manager like the ubuntu
> kernal. When we want to push something, we send an update notification and
> then server will update itself followed by a restart if it needed. When we
> want to do something to a cluster, what we do is just sending the message
> describing what we want to do. i.e. fetching *.jars, executing those
> jars(in case of a local db migration etc.) and restarting the server,
> deleting unwanted stuff etc. Even, we can remotely convert the whole ESB
> cluster to a different cluster.
>
> This would be a dumb idea, but that's how I see it personally.
>
> /Ruchira
>
> --
>
> *Ruchira Wageesha **Associate Technical Lead*
> *WSO2 Inc. - lean . enterprise . middleware |  wso2.com <http://wso2.com>*
>
> *email: [email protected] <[email protected]>,   blog:
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>
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>


-- 
*Afkham Azeez*
Director of Architecture; WSO2, Inc.; http://wso2.com
Member; Apache Software Foundation; http://www.apache.org/
* <http://www.apache.org/>*
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*Lean . Enterprise . Middleware*
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