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https://issues.apache.org/jira/browse/HDFS-4173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13494550#comment-13494550
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Hadoop QA commented on HDFS-4173:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12552952/HDFS-4173.001.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 2 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/3478//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3478//console
This message is automatically generated.
> If the NameNode has already been formatted, but a QuroumJournal has not,
> auto-format it on startup
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-4173
> URL: https://issues.apache.org/jira/browse/HDFS-4173
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: journal-node, name-node
> Affects Versions: 2.0.3-alpha
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Priority: Minor
> Attachments: HDFS-4173.001.patch
>
>
> If we have multiple edit log directories, and some of them are formatted, but
> others are not, we format the unformatted ones. However, when we implemented
> QuorumJournalManager, we did not extend this behavior to it. It makes sense
> to do this.
> One use case is if you want to add a QuorumJournalManager URI
> ({{journal://}}) to an existing {{NameNode}}, without reformatting
> everything. There is currently no easy way to do this, since {{namenode
> \-format}} will nuke everything, and there's no other way to format the
> {{JournalNodes}}.
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