[jira] [Created] (HDFS-7231) rollingupgrade needs some guard rails

[Allen Wittenauer (JIRA)]

Allen Wittenauer created HDFS-7231:
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             Summary: rollingupgrade needs some guard rails
                 Key: HDFS-7231
                 URL: https://issues.apache.org/jira/browse/HDFS-7231
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Allen Wittenauer


See first comment.



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