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https://issues.apache.org/jira/browse/HDFS-16092?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shilun Fan updated HDFS-16092:
------------------------------
Hadoop Flags: Reviewed
Target Version/s: 3.3.2, 3.2.3, 3.4.0 (was: 3.4.0, 3.2.3, 3.3.2)
> Avoid creating LayoutFlags redundant objects
> --------------------------------------------
>
> Key: HDFS-16092
> URL: https://issues.apache.org/jira/browse/HDFS-16092
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Affects Versions: 3.4.0, 3.3.2
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0, 3.2.3, 3.3.2
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> We use LayoutFlags to represent features that EditLog/FSImage can support.
> The utility helps write int (0) to given OutputStream and if EditLog/FSImage
> supports Layout flags, they read the value from InputStream to confirm
> whether there are unsupported feature flags (non zero int). However, we also
> create and return new object of LayoutFlags, which is not used anywhere
> because it's just a utility to read/write to/from given stream. We should
> remove such redundant objects from getting created while reading from
> InputStream using LayoutFlags#read utility.
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