Anyone has done Kerberos authentication with Hadoop to AEM
Kerberos authenticate from AEM to Hadoop servers.
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Utilize Kerberos/SPNEGO on Web server(IIS, Apache etc) and make use of Granite SSO Handler
If using AEM forms, refer to 
 Single Sign On
 Adobe Experience Manager Help | Configuring authentication providers
Adobe Experience Manager Help | Enabling single sign-on in AEM forms