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https://issues.apache.org/jira/browse/HDFS-5875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13890191#comment-13890191
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Daryn Sharp commented on HDFS-5875:
-----------------------------------
Lest you ponder: "for a compatible change, why did he touch so many test
cases?". Answer: many of the existing test cases for IIP have their
expected/actual arguments flipped. This made debugging very frustrating so I
corrected most of them, otherwise the only real test change is directly
exercising the iterator.
> Add iterator support to INodesInPath
> ------------------------------------
>
> Key: HDFS-5875
> URL: https://issues.apache.org/jira/browse/HDFS-5875
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Affects Versions: 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HDFS-5875.patch
>
>
> "Resolve as you go" inode iteration will help with the implementation of
> alternative locking schemes. It will also be the pre-cursor for resolving
> paths once and only once per operation, as opposed to ~3 times/call.
> This is an incremental and compatible change for IIP that does not break
> existing callers.
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