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https://issues.apache.org/jira/browse/MAHOUT-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14046428#comment-14046428
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Pat Ferrel commented on MAHOUT-1568:
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the code to read/write text delimited files is in MAHOUT-1541, it has a set of
abstract classes and traits for I/O and implements text delimited read of
tuples into a drm, and output of a drm into a text delimited format.
to futher this Jira a version of "rowsimilarity" will be created to read in a
text delimited drm as well as output one.
> Build an I/O model that can replace sequence files for import/export
> --------------------------------------------------------------------
>
> Key: MAHOUT-1568
> URL: https://issues.apache.org/jira/browse/MAHOUT-1568
> Project: Mahout
> Issue Type: New Feature
> Components: CLI
> Environment: Scala, Spark
> Reporter: Pat Ferrel
> Assignee: Pat Ferrel
>
> Implement mechanisms to read and write data from/to flexible stores. These
> will support tuples streams and drms but with extensions that allow keeping
> user defined values for IDs. The mechanism in some sense can replace Sequence
> Files for import/export and will make the operation much easier for the user.
> In many cases directly consuming their input files.
> Start with text delimited files for input/output in the Spark version of
> ItemSimilarity
> A proposal is running with ItemSimilarity on Spark and is documented on the
> github wiki here: https://github.com/pferrel/harness/wiki
> Comments are appreciated
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