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https://issues.apache.org/jira/browse/HDFS-14908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16980720#comment-16980720
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Jinglun commented on HDFS-14908:
--------------------------------
Hi [~elgoiri], yes we should have a test on INodesInPath. I use a test case to
compare INodesInPath and DFSUtil.isParent() and here is the result.
Compare path=/dir0/dir1/dir2/dir3 and parent=/dir0/dir1
||Time||10,000,000||
|DFSUtil.isParent()|400ms|
|INodesInPath|33,940ms|
The test case is in TestV4.patch.
> LeaseManager should check parent-child relationship when filter open files.
> ---------------------------------------------------------------------------
>
> Key: HDFS-14908
> URL: https://issues.apache.org/jira/browse/HDFS-14908
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.1.0, 3.0.1
> Reporter: Jinglun
> Assignee: Jinglun
> Priority: Minor
> Attachments: HDFS-14908.001.patch, HDFS-14908.002.patch,
> HDFS-14908.003.patch, HDFS-14908.004.patch, HDFS-14908.005.patch, Test.java,
> TestV2.java, TestV3.java
>
>
> Now when doing listOpenFiles(), LeaseManager only checks whether the filter
> path is the prefix of the open files. We should check whether the filter path
> is the parent/ancestor of the open files.
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