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https://issues.apache.org/jira/browse/HADOOP-15547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16549767#comment-16549767
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Hudson commented on HADOOP-15547:
---------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14594 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/14594/])
HADOOP-15547/ WASB: improve listStatus performance. Contributed by (stevel: rev
45d9568aaaf532a6da11bd7c1844ff81bf66bab1)
* (edit) hadoop-tools/hadoop-azure/pom.xml
* (delete)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/PartialListing.java
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/AzureNativeFileSystemStore.java
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/FileMetadata.java
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/NativeFileSystemStore.java
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/NativeAzureFileSystem.java
* (edit) hadoop-tools/hadoop-azure/dev-support/findbugs-exclude.xml
* (add)
hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/ITestListPerformance.java
> WASB: improve listStatus performance
> ------------------------------------
>
> Key: HADOOP-15547
> URL: https://issues.apache.org/jira/browse/HADOOP-15547
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/azure
> Affects Versions: 2.9.1, 3.0.2
> Reporter: Thomas Marquardt
> Assignee: Thomas Marquardt
> Priority: Major
> Attachments: HADOOP-15547-004.patch, HADOOP-15547-004.patch,
> HADOOP-15547.001.patch, HADOOP-15547.002.patch, HADOOP-15547.003.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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