[YARN-6263] NMTokenSecretManagerInRM.createAndGetNMToken is not thread safe

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha2
• Fix Version/s: 2.9.0, 3.0.0-alpha4, 2.8.2
• Component/s: yarn
• Target Version/s: 3.0.0-alpha4
• Hadoop Flags: Reviewed
• Assignee: Haibo Chen
• Reporter: Haibo Chen
• Created: 02/Mar/17 00:44
• Updated: 07/Jun/17 21:40
• Resolved: 03/Mar/17 14:25

Description

NMTokenSecretManagerInRM.createAndGetNMToken modifies values of a ConcurrentHashMap, which are of type HashSet, but it only acquires read lock.