Sebastian Nagel created NUTCH-1708:
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Summary: use same id when indexing and deleting redirects
Key: NUTCH-1708
URL: https://issues.apache.org/jira/browse/NUTCH-1708
Project: Nutch
Issue Type: Bug
Components: indexer
Affects Versions: 1.7
Reporter: Sebastian Nagel
Redirect targets are indexed using "representative URL"
* in Fetcher repr URL is determined by URLUtil.chooseRepr() and stored in
CrawlDatum (CrawlDb). Repr URL is either source or target URL of the redirect
pair.
* NutchField "url" is filled by basic indexing filter with repr URL
* id field used as unique key is filled from url per solrindex-mapping.xml
Deletion of redirects is done in IndexerMapReduce.reduce() by key which is the
URL of the redirect source. If the source URL is chosen as repr URL a redirect
target may get erroneously deleted.
Test crawl with seed {{http://wiki.apache.org/nutch}} which redirects to
{{http://wiki.apache.org/nutch/}}. DummyIndexWriter (NUTCH-1707) indicates that
same URL is deleted and added:
{code}
delete http://wiki.apache.org/nutch
add http://wiki.apache.org/nutch
{code}
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