Siddharth Ahuja created YARN-10652: -------------------------------------- Summary: Capacity Scheduler fails to handle user weights for a user that has a "." (dot) in it Key: YARN-10652 URL: https://issues.apache.org/jira/browse/YARN-10652 Project: Hadoop YARN Issue Type: Bug Components: capacity scheduler Affects Versions: 3.3.0 Reporter: Siddharth Ahuja
AD usernames can have a "." (dot) in them i.e. they can be of the format -> {{firstname.lastname}}. However, if you specify a username with this format against the Capacity Scheduler setting -> {{yarn.scheduler.capacity.root.default.user-settings.firstname.lastname.weight}}, it fails to be applied and is instead assigned the default of 1.0f weight. This renders the user weight feature (being used as a means of setting user priorities for a queue) unusable for such users. This limitation comes from [1]. From [1], only word characters (A word character: [a-zA-Z_0-9]) (see [2]) are permissible at the moment which is no good for AD names that contain a "." (dot). Similar discussion has been had in a few HADOOP jiras e.g. HADOOP-7050 and HADOOP-15395 and the outcome was to use non-whitespace characters i.e. instead of {{\w+}}, use {{\S+}}. We could go down similar path and unblock this feature for the AD usernames with a "." (dot) in them. [1] https://github.com/apache/hadoop/blob/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacitySchedulerConfiguration.java#L1953 [2] https://docs.oracle.com/javase/tutorial/essential/regex/pre_char_classes.html -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org