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I have to project a lot of points present in my Database say more than 100000. I heard that using geoserver is a better solution as it can render any number of points and from http://swingley.appspot.com/maps/olpts it is almost confirmed that I cannot use the normal code to project many points. I recently heard about cluster strategy that is present in OpenLayers and I think it can help me but I am not sure.

Can anyone help me about the better solution of these two GEOSERVER or CLUSTER strategy and reasons why one is preferred over the other? Remember I have to display many layers on the map.

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In that thread, jdeolive pointed us to a generalization geoserver extension. I really think you should give a try to this.

Regarding the OL cluster strategy, it can be use to enhanced user visualization but it will not reduce the amount of transferred data since the clusterization is done on the client side.

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Since OL is client side technology, it will not reduce the amount of data transfered. However, if he were doing server-side clustering, it would help greatly :) –  Ragi Yaser Burhum May 29 '11 at 1:02
    
IMO, Using OL cluster strategy with 100000 points is not an option. Possibly hang client browser. –  angelcervera May 31 '11 at 11:36
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It sounds that you are using the word project, to mean render/display (or do you actually want to do projections in the sense of changing coordinate systems?)

If it is the first, clustering is a good visualization technique to reduce the amount of data that you either transfer over the wire or display on the screen.

But if all you want to do is display a lot of data from various layers - and this data is not changing too often, you should start by looking at Geoserver's GeoWebCache functionality

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@user1795 And you got to do something about the 0% accept rate :) –  Ragi Yaser Burhum May 5 '11 at 1:32
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