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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12071) Ozone: PetaGen: Implementation of PetaGen
Date Thu, 29 Jun 2017 23:18:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16069175#comment-16069175
] 

Anu Engineer commented on HDFS-12071:
-------------------------------------

[~nandakumar131] Thanks for the JIRA. I was talking to [~arpitagarwal] he suggested we call
it "Corona". After something that generates ozone. 

https://en.wikipedia.org/wiki/Ozone#Corona_discharge_method


> Ozone: PetaGen: Implementation of PetaGen
> -----------------------------------------
>
>                 Key: HDFS-12071
>                 URL: https://issues.apache.org/jira/browse/HDFS-12071
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>            Reporter: Nandakumar
>            Assignee: Nandakumar
>
> Tool to populate ozone with data for testing.
> This is not a map-reduce program and this is not for benchmarking Ozone write throughput.
> It supports both online and offline modes. Default mode is offline, {{-mode}} can be
used to change the mode.
>  
> In online mode, active internet connection is required, common crawl data from AWS will
be used. Default source is https://commoncrawl.s3.amazonaws.com/CC-MAIN-2017-17/warc.paths.gz
(it contains the path to actual data segment), user can override this using {{-source}}.
> The following values are derived from URL of Common Crawl data
> * Domain will be used as Volume
> * URL will be used as Bucket
> * FileName will be used as Key
>  
> In offline mode, the data will be random bytes and size of data will be 10 KB.
> * Default number of Volumes 10, {{-numOfVolumes}} can be used to override 
> * Default number of Buckets per Volume 1000, {{-numOfBuckets}} can be used to override

> * Default number of Keys per Bucket 500000, {{-numOfKeys}} can be used to override 



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