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https://issues.apache.org/jira/browse/HDFS-13657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wang XL updated HDFS-13657:
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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}}. (was: 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}}.)
> 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
> 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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