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https://issues.apache.org/jira/browse/HADOOP-15547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16515368#comment-16515368
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Thomas Marquardt commented on HADOOP-15547:
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Attaching HADOOP-15547.002.patch with fixes for issues reported by Jenkins.
All tests are passing against my US West storage account:
Tests run: 241, Failures: 0, Errors: 0, Skipped: 11
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
Tests run: 446, Failures: 0, Errors: 0, Skipped: 55
Tests run: 126, Failures: 0, Errors: 0, Skipped: 10
> WASB: listStatus performance
> ----------------------------
>
> Key: HADOOP-15547
> URL: https://issues.apache.org/jira/browse/HADOOP-15547
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs/azure
> Affects Versions: 2.9.1, 3.0.2
> Reporter: Thomas Marquardt
> Assignee: Thomas Marquardt
> Priority: Major
> Attachments: HADOOP-15547.001.patch, HADOOP-15547.002.patch
>
>
> The WASB implementation of Filesystem.listStatus is very slow due to O(n!)
> algorithm to remove duplicates and uses too much memory due to the extra
> conversion from BlobListItem to FileMetadata to FileStatus. It takes over 30
> minutes to list 700,000 files.
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