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Posted to hdfs-dev@hadoop.apache.org by "Pranay Singh (JIRA)" <ji...@apache.org> on 2018/10/18 20:27:00 UTC

[jira] [Created] (HDFS-14008) NN should log snapshotdiff report

Pranay Singh created HDFS-14008:
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             Summary: NN should log snapshotdiff report
                 Key: HDFS-14008
                 URL: https://issues.apache.org/jira/browse/HDFS-14008
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: namenode
    Affects Versions: 3.0.3, 3.1.1, 3.0.0
            Reporter: Pranay Singh


It will be helpful to log message for snapshotdiff  to correlate snapshotdiff operation against memory spikes in NN heap.  It will be good to log the below details at the end of snapshot diff operation, this will help us to know the time spent in the snapshotdiff operation and to know the number of files/directories processed and compared.

a) Total dirs processed

b) Total dirs compared

c) Total files processed

d)  Total files compared

 e) Total children listing time






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