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https://issues.apache.org/jira/browse/HDFS-12420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16193861#comment-16193861
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Hudson commented on HDFS-12420:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13036 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13036/])
HDFS-12420. Add an option to disallow 'namenode format -force'. (arp: rev
b6942cbe9b8c9469e8c2b64c3268d671f5a43e75)
* (add)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeFormatException.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSCommands.md
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestClusterId.java
> Add an option to disallow 'namenode format -force'
> --------------------------------------------------
>
> Key: HDFS-12420
> URL: https://issues.apache.org/jira/browse/HDFS-12420
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ajay Kumar
> Assignee: Ajay Kumar
> Attachments: HDFS-12420.01.patch, HDFS-12420.02.patch,
> HDFS-12420.03.patch, HDFS-12420.04.patch, HDFS-12420.05.patch,
> HDFS-12420.06.patch, HDFS-12420.07.patch, HDFS-12420.08.patch,
> HDFS-12420.09.patch, HDFS-12420.10.patch, HDFS-12420.11.patch,
> HDFS-12420.12.patch
>
>
> Support for disabling NameNode format to avoid accidental formatting of
> Namenode in production cluster. If someone really wants to delete the
> complete fsImage, they can first delete the metadata dir and then run {code}
> hdfs namenode -format{code} manually.
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