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From "Pranay Singh (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDFS-14008) NN should log snapshotdiff report
Date Tue, 23 Oct 2018 18:32:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-14008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pranay Singh reassigned HDFS-14008:
-----------------------------------

    Assignee: Pranay Singh

> 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: 3.0.0, 3.1.1, 3.0.3
>            Reporter: Pranay Singh
>            Assignee: Pranay Singh
>            Priority: Major
>
> 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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