iwasakims commented on PR #913:
URL: https://github.com/apache/bigtop/pull/913#issuecomment-1155894654

   -1. Users should do this dangerous operation on their own. We usually expect 
user-generated data to be preserved even after uninstalling (rpm/deb) package. 
If users want to format HDFS overwriting existing fsimage, `hdfs namenode 
-format -force` can be used on their responsibility.


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