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https://issues.apache.org/jira/browse/HADOOP-12717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15107666#comment-15107666
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Gaurav Kanade commented on HADOOP-12717:
----------------------------------------
Can you specify how exactly you are trying to use the ExportSnapshot - i.e.
what is the copy-to parameter in your ExportSnapshot? Just want to get a better
idea to correctly identify the interactions with our WASB code path
> NPE when trying to rename a directory in Windows Azure Storage FileSystem
> -------------------------------------------------------------------------
>
> Key: HADOOP-12717
> URL: https://issues.apache.org/jira/browse/HADOOP-12717
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.7.0
> Reporter: Robert Yokota
> Attachments: diff.txt
>
>
> Encountered an NPE when trying to use the HBase utility ExportSnapshot with
> Azure as the target.
> It turns out verifyAndConvertToStandardFormat is returning null when
> determining the hbaseRoot, and this is being added to the atomicRenameDirs
> set.
> java.lang.NullPointerException
> at
> org.apache.hadoop.fs.azure.AzureNativeFileSystemStore.isKeyForDirectorySet(AzureNativeFileSystemStore.java:1059)
> at
> org.apache.hadoop.fs.azure.AzureNativeFileSystemStore.isAtomicRenameKey(AzureNativeFileSystemStore.java:1053)
> at
> org.apache.hadoop.fs.azure.NativeAzureFileSystem.prepareAtomicFolderRename(NativeAzureFileSystem.java:2098)
> at
> org.apache.hadoop.fs.azure.NativeAzureFileSystem.rename(NativeAzureFileSystem.java:1996)
> at
> org.apache.hadoop.hbase.snapshot.ExportSnapshot.run(ExportSnapshot.java:944)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at
> com.yammer.calmie.snapshot.AbstractSnapshotUtil.exportSnapshot(AbstractSnapshotUtil.java:210)
> at
> com.yammer.calmie.snapshot.AbstractSnapshotUtil.run(AbstractSnapshotUtil.java:79)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at
> com.yammer.calmie.snapshot.SnapshotAzureBlobUtil.main(SnapshotAzureBlobUtil.java:85)
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