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Haibo Chen commented on YARN-8448: ---------------------------------- Thanks [~rkanter] for the elaboration. OFF is what YARN does as of today and OPTIONAL essentially allows applications to opt in secure/HTTPS connection between RM and AM web server. They are straightforward. IIUC, REQUIRED, without failing AM registration when an AM sends a http tracking URL, is OPTIONAL + warning/blocking users if the AM&RM connection is HTTP. As running an application and accessing the running application are often times done together, it seems less intuitive to me that a user submits an application that runs fine, but could not access the application while it is running. If we're concerned about users with older apps that can't be updated to use HTTPS, IMO the proper solution is to use OPTIONAL as the policy. We can, when the policy is set of Optional, add an extra warning message (without blocking access) to the page returned to users. The way I think of the policy is it tells AMs what RM expects in terms of its requirement in the RM & AM web server connection (so more of an admin configuration): OFF means AMs can only choose HTTP connection; OPTIONAL means AMs can opt in HTTPS connection; REQUIRED means AMs must use HTTPS connection. From the users' perspective, if an application can run (without failing RM registration), they can always access the application. They may see a warning message if the connection is HTTP. > AM HTTPS Support > ---------------- > > Key: YARN-8448 > URL: https://issues.apache.org/jira/browse/YARN-8448 > Project: Hadoop YARN > Issue Type: Sub-task > Reporter: Robert Kanter > Assignee: Robert Kanter > Priority: Major > Attachments: YARN-8448.001.patch, YARN-8448.002.patch, > YARN-8448.003.patch, YARN-8448.004.patch, YARN-8448.005.patch, > YARN-8448.006.patch > > -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org