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https://issues.apache.org/jira/browse/NUTCH-1646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13782856#comment-13782856
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Markus Jelsma commented on NUTCH-1646:
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Confirmed the fix works. Without it, DB_GONE is indexed. Will commit shortly.
> IndexerMapReduce to consider DB status
> --------------------------------------
>
> Key: NUTCH-1646
> URL: https://issues.apache.org/jira/browse/NUTCH-1646
> Project: Nutch
> Issue Type: Bug
> Components: indexer
> Affects Versions: 1.7
> Reporter: Markus Jelsma
> Assignee: Markus Jelsma
> Fix For: 1.8
>
> Attachments: NUTCH-1646-trunk.patch
>
>
> IndexerMapReduce does not remove gone and redirects via DB status, only fetch
> status. This means segments merged before we fixed SegmentMerger may contain
> records that do not have a correct status. For example, some pages are gone
> on the web, gone in the CrawlDB, gone in the segments. But merging those old
> segments could cause a older status to prevail, causing it to be indexed
> although the CrawlDB says it's gone.
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