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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7611) deleteSnapshot and delete of a file can leave orphaned blocks in the blocksMap on NameNode restart.
Date Tue, 27 Jan 2015 02:53:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292893#comment-14292893
] 

Hadoop QA commented on HDFS-7611:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12694651/HDFS-7611.001.patch
  against trunk revision 6f9fe76.

    {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}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

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

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

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot
                  org.apache.hadoop.hdfs.server.datanode.TestBlockScanner

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/9334//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9334//console

This message is automatically generated.

> deleteSnapshot and delete of a file can leave orphaned blocks in the blocksMap on NameNode
restart.
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7611
>                 URL: https://issues.apache.org/jira/browse/HDFS-7611
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.6.0
>            Reporter: Konstantin Shvachko
>            Assignee: Byron Wong
>            Priority: Critical
>         Attachments: HDFS-7611.000.patch, HDFS-7611.001.patch, blocksNotDeletedTest.patch,
testTruncateEditLogLoad.log
>
>
> If quotas are enabled a combination of operations *deleteSnapshot* and *delete* of a
file can leave  orphaned  blocks in the blocksMap on NameNode restart. They are counted as
missing on the NameNode, and can prevent NameNode from coming out of safeMode and could cause
memory leak during startup.



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