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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-13055) Aggregate usage statistics from datanodes
Date Sun, 22 Apr 2018 15:14:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-13055?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Arpit Agarwal updated HDFS-13055:
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 3.2.0
           Status: Resolved  (was: Patch Available)

+1. I've committed this. Thanks for the contribution [~ajayydv]!

> Aggregate usage statistics from datanodes
> -----------------------------------------
>                 Key: HDFS-13055
>                 URL: https://issues.apache.org/jira/browse/HDFS-13055
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Ajay Kumar
>            Assignee: Ajay Kumar
>            Priority: Major
>             Fix For: 3.2.0
>         Attachments: HDFS-13055.001.patch, HDFS-13055.002.patch, HDFS-13055.003.patch,
HDFS-13055.004.patch, HDFS-13055.005.patch, HDFS-13055.006.patch, HDFS-13055.007.patch, HDFS-13055.008.patch,
HDFS-13055.009.patch, HDFS-13055.010.patch
> We collect variety of statistics in DataNodes and expose them via JMX. Aggregating some
of the high level statistics which we are already collecting in {{DataNodeMetrics}} (like
bytesRead,bytesWritten etc) over a configurable time window will create a central repository
accessible via JMX and UI. 
> Breaking this into 3 parts as suggested by [~arpitagarwal]
>  # Generate usage report on DN. (will handle in this jira)
>  # Pass usage report to NN periodically.
>  # Process report on NN and expose stats via JMX.

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