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https://issues.apache.org/jira/browse/HDFS-5427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13814338#comment-13814338
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Hari Mankude commented on HDFS-5427:
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Is this patch going to be backported to 2.2 also?
> not able to read deleted files from snapshot directly under snapshottable dir
> after checkpoint and NN restart
> -------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-5427
> URL: https://issues.apache.org/jira/browse/HDFS-5427
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: snapshots
> Affects Versions: 3.0.0, 2.2.0
> Reporter: Vinay
> Assignee: Vinay
> Priority: Blocker
> Fix For: 2.3.0
>
> Attachments: HDFS-5427-v2.patch, HDFS-5427.patch, HDFS-5427.patch
>
>
> 1. allow snapshots under dir /foo
> 2. create a file /foo/bar
> 3. create a snapshot s1 under /foo
> 4. delete the file /foo/bar
> 5. wait till checkpoint or do saveNameSpace
> 6. restart NN.
> 7. Now try to read the file from snapshot /foo/.snapshot/s1/bar
> client will get BlockMissingException
> Reason is
> While loading the deleted file list for a snashottable dir from fsimage,
> blocks were not updated in blocksmap
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