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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5427) not able to read deleted files from snapshot directly under snapshottable dir after checkpoint and NN restart
Date Tue, 05 Nov 2013 04:48:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13813629#comment-13813629

Hadoop QA commented on HDFS-5427:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:red}-1 eclipse:eclipse{color}.  The patch failed to build with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

        {color:red}-1 release audit{color}.  The applied patch generated 1 release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/5334//testReport/
Release audit warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/5334//artifact/trunk/patchprocess/patchReleaseAuditProblems.txt
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5334//console

This message is automatically generated.

> 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
>         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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