Hi folks, There're a bunch of ACLs configuration defaults, which are set to "*":
1. yarn.admin.acl in yarn-default.xml 2. yarn.scheduler.capacity.root.default.[acl_submit_applications|acl_administer_queue] in capacity-scheduler.xml 3. security.*.protocol.acl in hadoop-policy.xml When ACL (or server authorization) is enabled, the resources that are supposed to be protected are still accessible. However, anybody can still access them because the default configurations are "*", accepting anybody. These defaults seem not to make much sense, but only confuse users. Instead, the reasonable behavior should be that when ACL is enabled, a user is going to be denied by default unless we explicitly add him/her into the admin ACLs or the authorized user/group list. I have a patch to invert "*" to " " to block all users by default. Please let me how what you think about it, and how we should progress. Thanks, Zhijie -- Zhijie Shen Hortonworks Inc. http://hortonworks.com/ -- CONFIDENTIALITY NOTICE NOTICE: This message is intended for the use of the individual or entity to which it is addressed and may contain information that is confidential, privileged and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any printing, copying, dissemination, distribution, disclosure or forwarding of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and delete it from your system. Thank You.
