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https://issues.apache.org/jira/browse/HDFS-8127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14496071#comment-14496071
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Hudson commented on HDFS-8127:
------------------------------
FAILURE: Integrated in Hadoop-Hdfs-trunk #2096 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/2096/])
HDFS-8127. NameNode Failover during HA upgrade can cause DataNode to finalize
upgrade. Contributed by Jing Zhao. (jing9: rev
fddd55279d0bdd08b3b40aba6fe2ded1d2e0d846)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/NamenodeProtocolServerSideTranslatorPB.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/NamenodeProtocol.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/NamenodeProtocolTranslatorPB.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestDFSUpgradeWithHA.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/NNUpgradeUtil.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestBootstrapStandbyWithQJM.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/BootstrapStandby.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/proto/NamenodeProtocol.proto
> NameNode Failover during HA upgrade can cause DataNode to finalize upgrade
> --------------------------------------------------------------------------
>
> Key: HDFS-8127
> URL: https://issues.apache.org/jira/browse/HDFS-8127
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha
> Affects Versions: 2.4.0
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Priority: Blocker
> Fix For: 2.7.1
>
> Attachments: HDFS-8127.000.patch, HDFS-8127.001.patch
>
>
> Currently for HA upgrade (enabled by HDFS-5138), we use {{-bootstrapStandby}}
> to initialize the standby NameNode. The standby NameNode does not have the
> {{previous}} directory thus it does not know that the cluster is in the
> upgrade state. If NN failover happens, as response of block reports, the new
> ANN will tell DNs to finalize the upgrade thus make it impossible to rollback
> again.
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