Chen Liang created HDFS-15293:
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             Summary: Relax FSImage upload time delta check restriction
                 Key: HDFS-15293
                 URL: https://issues.apache.org/jira/browse/HDFS-15293
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: namenode
            Reporter: Chen Liang
            Assignee: Chen Liang


HDFS-12979 introduced the logic that, if ANN sees consecutive fs image upload 
from Standby with a small delta comparing to previous fsImage. ANN would reject 
this image. This is to avoid overly frequent fsImage in case of when there are 
multiple Standby node. However this check could be too stringent.



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