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https://issues.apache.org/jira/browse/NUTCH-1732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Markus Jelsma updated NUTCH-1732:
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Priority: Critical (was: Major)
> IndexerMapReduce to delete explicitly not indexable documents
> -------------------------------------------------------------
>
> Key: NUTCH-1732
> URL: https://issues.apache.org/jira/browse/NUTCH-1732
> Project: Nutch
> Issue Type: Bug
> Components: indexer
> Affects Versions: 1.8
> Reporter: Sebastian Nagel
> Priority: Critical
> Fix For: 1.9
>
>
> In a continuous crawl a previously successfully indexed document (identified
> by a URL) can become "not indexable" for a couple of reasons and must then
> explicitly deleted from the index. Some cases are handled in IndexerMapReduce
> (duplicates, gone documents or redirects, cf. NUTCH-1139) but others are not:
> * failed to parse (but previously successfully parsed): e.g., the document
> became larger and is now truncated
> * rejected by indexing filter (but previously accepted)
> In both cases (maybe there are more) the document should be explicitly
> deleted (if {{-deleteGone}} is set). Note that this cannot be done in
> CleaningJob because data from segments is required.
> We should also update/add a description for {{-deleteGone}}: it does not only
> trigger deletion of gone documents but also of redirects and duplicates (and
> unparseable and skipped docs).
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