Hi,
We are running into a condition 503 Service Unavailable when a user logs in via SAML2. To replicate the scenario I log into the SAML idp which tkes me to the portal. I click logoff which then puts me back onto the idp login page. I login again and then get a 503 error. This started happening after activating SAML2 in the portal. The Portal is running on NetWeaver 7.31 sp11.
In the default trace I see the following.
#2.0 #2014 11 11 16:10:49:241#0-500#Error#com.sap.engine.services.servlets_jsp.Security#
com.sap.ASJ.web.000657#BC-JAS-WEB#servlet_jsp#C0008E96B61600AF0000000000008E2C#643695450000000004#sap.com/irj#com.sap.engine.services.servlets_jsp.Security#J2EE_GST_SWP#0##2B438FBD69E711E497D10000265E035A#ec29bc3669e611e494890000265e035a#ec29bc3669e611e494890000265e035a#0#Thread[HTTP Worker [@614087135],5,Dedicated_Application_Thread]#Plain##
Service not available. Details: The server was overloaded. Impossible to process data.#