High load on Sites nodes, and many requests for "rest/webreference" are seen on Sites access log (Doc ID 2023898.1)

Last updated on NOVEMBER 03, 2016

Applies to:

Oracle WebCenter Sites - Version 11.1.1.8.0 and later
Information in this document applies to any platform.

Symptoms

In a production delivery environment fronted by Remote Satellite Server (RSS), the Sites cluster nodes are experiencing very high load, and poor response times.
Access logs for Sites applications servers show an exceptionally high number of incoming REST requests like

/cs/ContentServer?pagename=rest/webreference&lookuppage={vanitypage}&lookuphost={vanityhost}

Cause

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