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https://issues.apache.org/jira/browse/NUTCH-476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12494537
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Sami Siren commented on NUTCH-476:
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md5 sum (or any other configurable "digest") is already calculated in fetcher
or parser and dedup can be used to remove duplicates.
> Would like to add a field to the document class for its MD5 signature
> ----------------------------------------------------------------------
>
> Key: NUTCH-476
> URL: https://issues.apache.org/jira/browse/NUTCH-476
> Project: Nutch
> Issue Type: Improvement
> Components: indexer
> Environment: all
> Reporter: Linh Pham
> Priority: Minor
>
> During indexing a file, if an MD5 signature was calculated and stored along
> with the document as a default,
> it could then be used to remove duplicates from the results on retrieval.
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