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https://issues.apache.org/jira/browse/HDFS-8110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14487257#comment-14487257
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Hadoop QA commented on HDFS-8110:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12724180/HDFS-8110.1.patch
against trunk revision 6495940.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+0 tests included{color}. The patch appears to be a
documentation patch that doesn't require tests.
{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
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/10228//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HDFS-Build/10228//console
This message is automatically generated.
> Remove unsupported operation , -rollingUpgrade downgrade related information
> from document
> ------------------------------------------------------------------------------------------
>
> Key: HDFS-8110
> URL: https://issues.apache.org/jira/browse/HDFS-8110
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation
> Reporter: J.Andreina
> Assignee: J.Andreina
> Priority: Minor
> Attachments: HDFS-8110.1.patch
>
>
> Support for "-rollingUpgrade downgrade" is been removed as part of HDFS-7302.
> Corresponding information should be removed from document also.
> {noformat}
> Downgrade with Downtime
> Administrator may choose to first shutdown the cluster and then downgrade it.
> The following are the steps:
> Shutdown all NNs and DNs.
> Restore the pre-upgrade release in all machines.
> Start NNs with the "-rollingUpgrade downgrade" option.
> Start DNs normally.
> {noformat}
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