Kihwal Lee created HDFS-4233:
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             Summary: NN keeps serving even after no journals started while 
rolling edit
                 Key: HDFS-4233
                 URL: https://issues.apache.org/jira/browse/HDFS-4233
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: name-node
    Affects Versions: 0.23.5
            Reporter: Kihwal Lee
            Priority: Critical


We've seen namenode keeps serving even after rollEditLog() failure. Instead of 
taking a corrective action or regard this condition as FATAL, it keeps on 
serving and modifying its file system state. No logs are written from this 
point, so if the namenode is restarted, there will be data loss.


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