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https://issues.apache.org/jira/browse/HDFS-10745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15543886#comment-15543886
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Konstantin Shvachko commented on HDFS-10745:
--------------------------------------------
The port to 2.7 looks good. There are two more places where the optimization
can be applied:
- {{FSNamesystem.checkAccess()}}
- {{FSDirAttrOp.setStoragePolicy()}}
> Directly resolve paths into INodesInPath
> ----------------------------------------
>
> Key: HDFS-10745
> URL: https://issues.apache.org/jira/browse/HDFS-10745
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 2.8.0, 3.0.0-alpha1
>
> Attachments: HDFS-10745-branch-2.7.01.patch,
> HDFS-10745-branch-2.7.02.patch, HDFS-10745-branch-2.7.03.patch,
> HDFS-10745-branch-2.7.04.patch, HDFS-10745-branch-2.7.patch,
> HDFS-10745.2.patch, HDFS-10745.branch-2.patch, HDFS-10745.patch
>
>
> The intermediate resolution to a string, only to be decomposed by
> {{INodesInPath}} back into a byte[][] can be eliminated by resolving directly
> to an IIP. The IIP will contain the resolved path if required.
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