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From "Nandakumar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-12071) Ozone: PetaGen: Implementation of PetaGen
Date Thu, 29 Jun 2017 22:04:02 GMT
Nandakumar created HDFS-12071:
---------------------------------

             Summary: 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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