[opencms-dev] OpenCms clustering on cloud servers?

[HERNAN - TFSLA]

Hi, 

We use Amazon ec2 cloud services and to be honest, there is no much
difference on the OpenCms side to a traditional hosting. 

You can add or remove nodes cloning instances a editing a couple of XMLs.
Anyway, you should always have addittional OCEE licenses for this.

The sync is very quickly, since the nodes actually does not have any data.
If we are talking about OCEE Replicator sync, this should be fairly quickly
since the connectivity inside the cloud usually is over 10gbit.

I hope this helps.


Steve Bryan-2 wrote:
> 
> Hi all
> 
> We would like to move our OpenCms website to a cloud platform with
> multiple
> production nodes, with the ability to fairly dynamically add and remove
> virtual servers to make the most of flexible cloud server
> resources. Currently our site uses OCEE clustering and replication, with a
> master content admin server replicating content to three static public
> facing cluster nodes.
> 
> Does anyone have experience or ideas around having OpenCms on such a cloud
> platform, with the ability to add or remove nodes fairly dynamically?
> 
> We forsee problems including the following:
> 1. OCEE publishes content from our 'master' content editing server to
> slave
> nodes using an event driven model. If nodes are absent (eg taken out of
> the
> cluster), then they are not kept in synch.
> 2. If a new node is added, then how could we quickly synchronise the
> content with the master to get the node operational?
> 3. Config is done statically in xml files: if a node is taken away or
> added, then config files need to be updated and tomcat restarts done - it
> is not truly 'dynamic' as we would hope for in the cloud model.
> 
> Thanks in advance for any input!
> 
> Regards
> Steve
> Shine Technologies
> 
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