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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5847) Consolidate INodeReference into a separate section
Date Wed, 12 Feb 2014 02:06:25 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13898672#comment-13898672
] 

Hadoop QA commented on HDFS-5847:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12628367/HDFS-5847.000.patch
  against trunk revision .

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

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {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
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of 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/6115//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/6115//console

This message is automatically generated.

> Consolidate INodeReference into a separate section
> --------------------------------------------------
>
>                 Key: HDFS-5847
>                 URL: https://issues.apache.org/jira/browse/HDFS-5847
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: 3.0.0
>            Reporter: Haohui Mai
>            Assignee: Jing Zhao
>         Attachments: HDFS-5847.000.patch
>
>
> Currently each INodeDirectorySection.Entry contains variable numbers of INodeReference
entries. The INodeReference entries are inlined, therefore it is difficult to quickly navigate
through a INodeDirectorySection.Entry. Skipping through a INodeDirectorySection.Entry without
parsing is essential to parse these entries in parallel.
> This jira proposes to consolidate INodeReferences into a section and give each of them
an ID. The INodeDirectorySection.Entry can store the list of the IDs as a repeated field.
That way we can leverage the existing code in protobuf to quickly skip through a INodeDirectorySection.Entry.



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