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https://issues.apache.org/jira/browse/HADOOP-8649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13432021#comment-13432021
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Karthik Kambatla commented on HADOOP-8649:
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I don't think the patch has anything to do with the two failing tests, these
tests fail on the latest trunk as well. Casual code examination shows no
intersection between the patch and failing tests.
> ChecksumFileSystem should have an overriding implementation of
> listStatus(Path, PathFilter) for improved performance
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8649
> URL: https://issues.apache.org/jira/browse/HADOOP-8649
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 1.0.3, 2.0.0-alpha
> Reporter: Karthik Kambatla
> Assignee: Karthik Kambatla
> Attachments: HADOOP-8649_branch1.patch, HADOOP-8649_branch1.patch,
> HADOOP-8649_branch1.patch_v2, HADOOP-8649_branch1.patch_v3,
> TestChecksumFileSystemOnDFS.java, branch1-HADOOP-8649.patch,
> branch1-HADOOP-8649.patch, trunk-HADOOP-8649.patch, trunk-HADOOP-8649.patch
>
>
> Currently, ChecksumFileSystem implements only listStatus(Path).
> The other form of listStatus(Path, customFilter) results in parsing the list
> twice to apply each of the filters - custom and checksum filter.
> By using a composite filter instead, we limit the parsing to once.
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