[ https://issues.apache.org/jira/browse/HDFS-7389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14207947#comment-14207947 ]
Hudson commented on HDFS-7389: ------------------------------ FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #3 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/3/]) HDFS-7389. Named user ACL cannot stop the user from accessing the FS entity. Contributed by Vinayakumar B. (cnauroth: rev 163bb55067bde71246b4030a08256ba9a8182dc8) * hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSAclBaseTest.java * hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSPermissionChecker.java * hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt > Named user ACL cannot stop the user from accessing the FS entity. > ----------------------------------------------------------------- > > Key: HDFS-7389 > URL: https://issues.apache.org/jira/browse/HDFS-7389 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Affects Versions: 2.5.1 > Reporter: Chunjun Xiao > Assignee: Vinayakumar B > Fix For: 2.7.0 > > Attachments: HDFS-7389-001.patch, HDFS-7389-002.patch > > > In > http://hortonworks.com/blog/hdfs-acls-fine-grained-permissions-hdfs-files-hadoop/: > {quote} > It’s important to keep in mind the order of evaluation for ACL entries when a > user attempts to access a file system object: > 1. If the user is the file owner, then the owner permission bits are enforced. > 2. Else if the user has a named user ACL entry, then those permissions are > enforced. > 3. Else if the user is a member of the file’s group or any named group in an > ACL entry, then the union of permissions for all matching entries are > enforced. (The user may be a member of multiple groups.) > 4. If none of the above were applicable, then the other permission bits are > enforced. > {quote} > Assume we have a user UserA from group GroupA, if we config a directory as > following ACL entries: > group:GroupA:rwx > user:UserA:--- > According to the design spec above, userA should have no access permission to > the file object, while actually userA still has rwx access to the dir. -- This message was sent by Atlassian JIRA (v6.3.4#6332)