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Ajay Kumar commented on HDFS-12420: ----------------------------------- [~rushabh.shah],[~arpitagarwal],[~vagarychen] thanks for review. Attaching new patch with suggested changes. > 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, HDFS-12420.02.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