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https://issues.apache.org/jira/browse/HDFS-7302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14345175#comment-14345175
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Hudson commented on HDFS-7302:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #121 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/121/])
HDFS-7302. Remove "downgrade" from "namenode -rollingUpgrade" startup option
since it may incorrectly finalize an ongoing rolling upgrade. (szetszwo: rev
431e7d84c7b68b34ff18de19afe8e46637047fa6)
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestHdfsServerConstants.java
* hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml
* hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSCommands.md
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeOptionParsing.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestRollingUpgradeDowngrade.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/common/HdfsServerConstants.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
> namenode -rollingUpgrade downgrade may finalize a rolling upgrade
> -----------------------------------------------------------------
>
> Key: HDFS-7302
> URL: https://issues.apache.org/jira/browse/HDFS-7302
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Kai Sasaki
> Labels: document, hdfs
> Fix For: 3.0.0
>
> Attachments: HADOOP-7302.1.patch, HDFS-7302.2.patch, HDFS-7302.3.patch
>
>
> The namenode startup option "-rollingUpgrade downgrade" is originally
> designed for downgrading cluster. However, running "namenode -rollingUpgrade
> downgrade" with the new software could result in finalizing the ongoing
> rolling upgrade.
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