EM12c: Connection To The Server Has Failed: Redirects to Login Page.
Last updated on APRIL 28, 2018
Applies to:Enterprise Manager Base Platform - Version 184.108.40.206.0 and later
Information in this document applies to any platform.
Multi OMS behind SLB (F5 bigIP SLB)
Navigate around the 12c Console and click on particular link/Tab, it route back to login screen with following popup message:
"Connection To The Server Has Failed"
Click on OK, user require to login again.
Verified that the https console port persistence is 3600 second but user get this message less than 60 minutes.
Verified that frequent dummy logins were going to different OMS.
Accessing the https://SLBname.domain.com:port#/dummy (/dummy instead of /em) the URL on diff browser and every manual refresh , was re-directing to different OMS(s)
From OMS1 server
$ tail -f /gc_inst/WebTierIH7/diagnostics/logs/OHS/ohs7/access_log | grep -i dummy
Above logs shows , when Login page displayed and it was routed to different OMS.
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