Konstantin Shvachko created HDFS-15323:
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             Summary: StandbyNode fails transition to active due to 
insufficient transaction tailing
                 Key: HDFS-15323
                 URL: https://issues.apache.org/jira/browse/HDFS-15323
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode, qjm
    Affects Versions: 2.7.7
            Reporter: Konstantin Shvachko


StandbyNode is asked to {{transitionToActive()}}. If it fell too far behind in 
tailing journal transaction (from QJM) it can crash with 
{{IllegalStateException}}.



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