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Posted to hdfs-issues@hadoop.apache.org by "Wei-Chiu Chuang (JIRA)" <ji...@apache.org> on 2019/07/31 02:08:00 UTC
[jira] [Assigned] (HDFS-13657) INodeId's LAST_RESERVED_ID may not
as expected and the comment is misleading
[ https://issues.apache.org/jira/browse/HDFS-13657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wei-Chiu Chuang reassigned HDFS-13657:
--------------------------------------
Assignee: Wang XL
> INodeId's LAST_RESERVED_ID may not as expected and the comment is misleading
> -----------------------------------------------------------------------------
>
> Key: HDFS-13657
> URL: https://issues.apache.org/jira/browse/HDFS-13657
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.1.0, 2.7.7
> Reporter: Wang XL
> Assignee: Wang XL
> Priority: Trivial
> Attachments: HDFS-13657-trunk.001.patch
>
>
> 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}}.
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