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Posted to dev@mahout.apache.org by "Olivier Grisel (JIRA)" <ji...@apache.org> on 2010/01/15 19:08:54 UTC

[jira] Created: (MAHOUT-250) Make WikipediaXmlSplitter able able to directly use the bzip2 compressed dump as input

Make WikipediaXmlSplitter able able to directly use the bzip2 compressed dump as input
--------------------------------------------------------------------------------------

                 Key: MAHOUT-250
                 URL: https://issues.apache.org/jira/browse/MAHOUT-250
             Project: Mahout
          Issue Type: Improvement
          Components: Classification
    Affects Versions: 0.2
            Reporter: Olivier Grisel
            Priority: Minor
             Fix For: 0.3


Wikipedia.org ships large bzip2 compressed archives hence it would make sense to be able to load the chunked XML into HDFS directly from the original file without having to uncompress a 25GB temporary file on the local hard drive. Reusing the Hadoop BZip2 codecs allows us to avoid having to introduce a new dependency.

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[jira] Updated: (MAHOUT-250) Make WikipediaXmlSplitter able able to directly use the bzip2 compressed dump as input

Posted by "Olivier Grisel (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/MAHOUT-250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Olivier Grisel updated MAHOUT-250:
----------------------------------

    Status: Patch Available  (was: Open)

> Make WikipediaXmlSplitter able able to directly use the bzip2 compressed dump as input
> --------------------------------------------------------------------------------------
>
>                 Key: MAHOUT-250
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-250
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Classification
>    Affects Versions: 0.2
>            Reporter: Olivier Grisel
>            Priority: Minor
>             Fix For: 0.3
>
>         Attachments: MAHOUT-250-WikipediaXmlSplitter-BZip2.patch
>
>
> Wikipedia.org ships large bzip2 compressed archives hence it would make sense to be able to load the chunked XML into HDFS directly from the original file without having to uncompress a 25GB temporary file on the local hard drive. Reusing the Hadoop BZip2 codecs allows us to avoid having to introduce a new dependency.

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[jira] Updated: (MAHOUT-250) Make WikipediaXmlSplitter able to directly use the bzip2 compressed dump as input

Posted by "Olivier Grisel (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/MAHOUT-250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Olivier Grisel updated MAHOUT-250:
----------------------------------

    Summary: Make WikipediaXmlSplitter able to directly use the bzip2 compressed dump as input  (was: Make WikipediaXmlSplitter able able to directly use the bzip2 compressed dump as input)

> Make WikipediaXmlSplitter able to directly use the bzip2 compressed dump as input
> ---------------------------------------------------------------------------------
>
>                 Key: MAHOUT-250
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-250
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Classification
>    Affects Versions: 0.2
>            Reporter: Olivier Grisel
>            Priority: Minor
>             Fix For: 0.3
>
>         Attachments: MAHOUT-250-WikipediaXmlSplitter-BZip2.patch
>
>
> Wikipedia.org ships large bzip2 compressed archives hence it would make sense to be able to load the chunked XML into HDFS directly from the original file without having to uncompress a 25GB temporary file on the local hard drive. Reusing the Hadoop BZip2 codecs allows us to avoid having to introduce a new dependency.

-- 
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[jira] Updated: (MAHOUT-250) Make WikipediaXmlSplitter able able to directly use the bzip2 compressed dump as input

Posted by "Olivier Grisel (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/MAHOUT-250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Olivier Grisel updated MAHOUT-250:
----------------------------------

    Attachment: MAHOUT-250-WikipediaXmlSplitter-BZip2.patch

attached patch for BZip2 support

> Make WikipediaXmlSplitter able able to directly use the bzip2 compressed dump as input
> --------------------------------------------------------------------------------------
>
>                 Key: MAHOUT-250
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-250
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Classification
>    Affects Versions: 0.2
>            Reporter: Olivier Grisel
>            Priority: Minor
>             Fix For: 0.3
>
>         Attachments: MAHOUT-250-WikipediaXmlSplitter-BZip2.patch
>
>
> Wikipedia.org ships large bzip2 compressed archives hence it would make sense to be able to load the chunked XML into HDFS directly from the original file without having to uncompress a 25GB temporary file on the local hard drive. Reusing the Hadoop BZip2 codecs allows us to avoid having to introduce a new dependency.

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[jira] Updated: (MAHOUT-250) Make WikipediaXmlSplitter able to directly use the bzip2 compressed dump as input

Posted by "Sean Owen (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/MAHOUT-250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen updated MAHOUT-250:
-----------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Looks nice and uncontroversial. I took the liberty of committing.

> Make WikipediaXmlSplitter able to directly use the bzip2 compressed dump as input
> ---------------------------------------------------------------------------------
>
>                 Key: MAHOUT-250
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-250
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Classification
>    Affects Versions: 0.2
>            Reporter: Olivier Grisel
>            Priority: Minor
>             Fix For: 0.3
>
>         Attachments: MAHOUT-250-WikipediaXmlSplitter-BZip2.patch
>
>
> Wikipedia.org ships large bzip2 compressed archives hence it would make sense to be able to load the chunked XML into HDFS directly from the original file without having to uncompress a 25GB temporary file on the local hard drive. Reusing the Hadoop BZip2 codecs allows us to avoid having to introduce a new dependency.

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