[jira] [Resolved] (HDFS-300) NameNode to blat total number of files and blocks

["Harsh J (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Harsh J resolved HDFS-300.
--------------------------

    Resolution: Not A Problem

Not a problem anymore (perhaps since branch-0.20-security pick up).

>From a sample /jmx metrics output:

{code}
{
    "name" : "hadoop:service=NameNode,name=FSNamesystemState",
    "modelerType" : "org.apache.hadoop.hdfs.server.namenode.FSNamesystem",
    "CapacityTotal" : 999527776256,
    "CapacityUsed" : 413696,
    "CapacityRemaining" : 732080799744,
    "TotalLoad" : 1,
    "BlocksTotal" : 29,
    "FilesTotal" : 70,
    "PendingReplicationBlocks" : 0,
    "UnderReplicatedBlocks" : 0,
    "ScheduledReplicationBlocks" : 0,
    "FSState" : "safeMode"
  }
{code}

*"BlocksTotal" : 29*
*"FilesTotal" : 70*
                
> NameNode to blat total number of files and blocks
> -------------------------------------------------
>
>                 Key: HDFS-300
>                 URL: https://issues.apache.org/jira/browse/HDFS-300
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Marco Nicosia
>            Priority: Minor
>
> Right now, the namenode reports lots of rates (block read per sec, removed per sec, etc etc) but it doesn't actually report how many files and blocks total exist in the system. It'd be great if we could have this, so that our reporting systems can show the growth trends over time.

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