hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5285) Flatten INodeFile hierarchy: Add UnderContruction Feature
Date Thu, 21 Nov 2013 21:58:36 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13829389#comment-13829389
] 

Hadoop QA commented on HDFS-5285:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12615172/HDFS-5285.003.patch
  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 8 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: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/5530//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5530//console

This message is automatically generated.

> Flatten INodeFile hierarchy: Add UnderContruction Feature
> ---------------------------------------------------------
>
>                 Key: HDFS-5285
>                 URL: https://issues.apache.org/jira/browse/HDFS-5285
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Jing Zhao
>         Attachments: HDFS-5285.001.patch, HDFS-5285.002.patch, HDFS-5285.003.patch, h5285_20131001.patch,
h5285_20131002.patch, h5285_20131118.patch
>
>
> For files, there are INodeFile, INodeFileUnderConstruction, INodeFileWithSnapshot and
INodeFileUnderConstructionWithSnapshot for representing whether a file is under construction
or whether it is in some snapshot.  The following are two major problems of the current approach:
> - Java class does not support multiple inheritances so that INodeFileUnderConstructionWithSnapshot
cannot extend both INodeFileUnderConstruction and INodeFileWithSnapshot.
> - The number of classes is exponential to the number of features.  Currently, there are
only two features, UnderConstruction and WithSnapshot.  The number of classes is 2^2 = 4.
 It is hard to add one more feature since the number of classes will become 2^3 = 8.
> As a first step, we implement an Under-Construction feature to replace INodeFileUnderConstruction
and INodeFileUnderConstructionWithSnapshot in this jira.



--
This message was sent by Atlassian JIRA
(v6.1#6144)

Mime
View raw message