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https://issues.apache.org/jira/browse/HADOOP-6890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hairong Kuang updated HADOOP-6890:
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Status: Patch Available (was: Open)
> Improve listFiles API introduced by HADOOP-6870
> -----------------------------------------------
>
> Key: HADOOP-6890
> URL: https://issues.apache.org/jira/browse/HADOOP-6890
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 0.22.0
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: improveListFiles.patch
>
>
> This jira is mainly for addressing Suresh's review comments for HADOOP-6870:
> 1. General comment: I have concerns about recursive listing. This could be
> abused by the applications, creating a lot of requests into HDFS.
> 2. Any deletion of files/directories while reursing through directories
> results in RuntimeException and application has a partial result. Should we
> ignore if a directory was in stack and was not found later when iterating
> through it?
> 3. FileSystem.java
> * listFile() - method javadoc could be better organized - first
> write about if path is directory and two cases recursive=true and false. Then
> if path is file and two cases recursive=true or false.
> * listFile() - document throwing RuntimeException,
> UnsupportedOperationException and the possible cause. IOException is no
> longer thrown.
> 4. TestListFiles.java
> * testDirectory() - comments test empty directory and test
> directory with 1 file should be moved up to relevant sections of the test.
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