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https://issues.apache.org/jira/browse/HDFS-5384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13801108#comment-13801108
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Hadoop QA commented on HDFS-5384:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12609503/HDFS-5384.001.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 1 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-common-project/hadoop-common 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/5249//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5249//console
This message is automatically generated.
> Add a new TransitionState to indicate NN is in transition from standby state
> to active state
> --------------------------------------------------------------------------------------------
>
> Key: HDFS-5384
> URL: https://issues.apache.org/jira/browse/HDFS-5384
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: ha, namenode
> Affects Versions: 3.0.0
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Attachments: HDFS-5384.000.patch, HDFS-5384.001.patch
>
>
> Currently in HA setup, when a NameNode is transitioning from standby to
> active, the current code first sets the state of the NN to Active, then
> starts the active service, during which the NN still needs to tail the
> remaining editlog and may not be able to serve certain requests as expected
> (such as HDFS-5322).
> So it may be necessary to define a transition state to indicate that NN has
> left the previous state and is in transitioning to the next state.
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