[ http://issues.apache.org/jira/browse/NUTCH-420?page=all ]
Dogacan Güney updated NUTCH-420:
--------------------------------
Attachment: dedup.patch
Patch for the problem. This patch also slightly refactors the code.
> DeleteDuplicates.HashPartitioner depends on the order of IndexDocs
> ------------------------------------------------------------------
>
> Key: NUTCH-420
> URL: http://issues.apache.org/jira/browse/NUTCH-420
> Project: Nutch
> Issue Type: Bug
> Components: indexer
> Affects Versions: 0.9.0
> Reporter: Dogacan Güney
> Priority: Minor
> Attachments: dedup.patch
>
>
> DeleteDuplicates.HashPartitioner.reduce():
> // byScore case
> if (value.score > highest.score) {
> highest.keep = false;
> LOG.debug("-discard " + highest + ", keep " + value);
> output.collect(highest.url, highest); // delete highest
> highest = value;
> }
> // !byScore is also similar
> So assume two docs with same hash are in values.If the first has higher score
> than the second than second doc will be deleted. But if the first has lower
> score than the second then none will be deleted. AFAICS, there should be an
> else condition to delete value and keep highest as it is.
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