Sebastian Nagel created NUTCH-2976:
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Summary: SitemapProcessor: verify sitemap values added from
sitemap to CrawlDB (priority, modification time and change frequency)
Key: NUTCH-2976
URL: https://issues.apache.org/jira/browse/NUTCH-2976
Project: Nutch
Issue Type: Improvement
Components: sitemap
Affects Versions: 1.19
Reporter: Sebastian Nagel
Fix For: 1.20
SitemapProcesser writes values from the sitemap into the CrawlDB without
verification or plausibility check:
- priority - used as CrawlDatum score
- modification time
- change frequency - used as fetch interval
Since these values in the sitemap cannot be trusted, the processor should make
sure that they are in acceptable ranges:
- priority > 0.0 (a score of 0.0 would cause that a URL is never fetched)
- modification time: not in the future
- change frequency / fetch interval within
[db.fetch.schedule.adaptive.min_interval, db.fetch.schedule.max_interval]
See also NUTCH-2975
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