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I would like to know the way to overlay 50000 markers on OpenLayers, and would like to know how many OpenLayers can support?

nmtoken
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Ramya
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    Also have a look at this question for how to do server-side clustering: http://gis.stackexchange.com/questions/41855/what-are-my-options-for-server-side-clustering-using-open-source-gis-tools – Devdatta Tengshe Feb 28 '13 at 06:49

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According to your question :

Browsers can't handle moving around a DOM with more than a few hundred elements at once. I highly recommend figuring out a way to limit yourself to under 500 markers (Firefox) or 50 markers (IE6).

Please go though FAQ's

Sunil
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