[HDFS-13233] RBF: MountTableResolver doesn't return the correct mount point of the given path

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.1.0, 2.10.0, 2.9.1, 3.0.3
• Component/s: hdfs
• Target Version/s: 2.9.0, 3.1.0
• Hadoop Flags: Reviewed
• Assignee: wangzhiyuan
• Reporter: wangzhiyuan
• Created: 06/Mar/18 02:25
• Updated: 05/Apr/18 20:11
• Resolved: 09/Mar/18 07:56

Description

Method MountTableResolver->getMountPoint will traverse mount table and return the first mount point which the input path starts with, but the condition is not sufficient.

Suppose the mount point table contains: "/user" "/user/test" "/user/test1", if the input path is "/user/test111", the return mount point is "/user/test1", but the correct one should be "/user".

Issue Links

• is broken by: HDFS-10880 Federation Mount Table State Store internal API
• is related to: HDFS-13253 RBF: Quota management incorrect parent-child relationship judgement