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Arpit Agarwal commented on HDFS-12420: -------------------------------------- Thanks for this improvement [~ajayydv]. Couple of comments, in addition to the test case as suggested by Rushabh: # Let's also make the -force option a no-op. We can continue to accept it but it should have no effect and we should print a warning saying that the force option is being ignored. # Same with the -nonInteractive option. > Disable Namenode format when data already exists > ------------------------------------------------ > > 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 > > > Disable 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. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org