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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6066) logGenerationStamp is not needed to reduce editlog size
Date Sun, 14 Sep 2014 21:05:33 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14133381#comment-14133381

Hadoop QA commented on HDFS-6066:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision 14e2639.

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

    {color:green}+1 tests included{color}.  The patch appears to include 3 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:


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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/8023//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8023//console

This message is automatically generated.

> logGenerationStamp is not needed to reduce editlog size
> -------------------------------------------------------
>                 Key: HDFS-6066
>                 URL: https://issues.apache.org/jira/browse/HDFS-6066
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: chenping
>            Priority: Minor
>         Attachments: HDFS-6066-trunk.1.patch, HDFS-6066-trunk.2.patch, HDFS-6066-trunk.3.patch
> almost every logGenerationStamp has a logAddBlock followed, so we can get the newest
gs from the logAddBlock operation indirectly.this will reduce the edit log size.

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