Faced a situation where All Zimbra Services where reported Up and Running with zmcontrol status , but webLogin and admin login was not appearing on client screen as well as on the server.The DNS and Reach-ability of respective IP were OK.Found that java Process at this point was reported 100 % . But Over All CPU utilization was not very High , as this is a 12 Core CPU.

This is ZCS-8-GA with Centos6.3 .Can anyone guide as to what might have happened . The login became functional after having restarted the services.