[HDFS-13657] INodeId's LAST_RESERVED_ID may not as expected and the comment is misleading

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Duplicate
• Affects Version/s: 3.1.0, 2.7.7
• Component/s: namenode
• Assignee: Wang XL
• Reporter: Wang XL
• Created: 05/Jun/18 13:38
• Updated: 31/Jul/19 02:11
• Resolved: 31/Jul/19 02:11

Description

The comment of class INodeId is misleading. In the comment, Id 1 to 1000 are reserved for potential future usage, but code{{public static final long LAST_RESERVED_ID = 2 << 14 - 1}} will result 1 to 16384 are reserved. At the same time , operator '-' priority is higher than '<<', 2 << 14 - 1 is not equal to (2 <<14) - 1.

Issue Links

• duplicates: HDFS-12245 Fix INodeId javadoc