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https://issues.apache.org/jira/browse/NUTCH-521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12513870
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Doğacan Güney commented on NUTCH-521:
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AFAICS, you didn't give users a way to specify whether they want to override or
not on the command line. Something like this would be nice:
bin/nutch inject crawl/crawldb crawl/urls -override
You can check if "-override" exists while parsing command line options, then
pass it to job (like job.setBoolean("db.inject.override", true).
> Modified injector to allow newly injected CrawlDatum to overwrite original
> --------------------------------------------------------------------------
>
> Key: NUTCH-521
> URL: https://issues.apache.org/jira/browse/NUTCH-521
> Project: Nutch
> Issue Type: Improvement
> Components: injector
> Affects Versions: 0.9.0
> Environment: Tested on Solaris and Windows with Java 1.5
> Reporter: Rob Young
> Attachments: inject.patch
>
>
> Before this patch if a CrawlDatum is already in the crawldb then it will be
> used in preference to the CrawlDatum created by the newly injected url. This
> patch gives the user the ability to force the injected CrawlDatum to be used
> instead. The use case for this patch was the requirement for injected urls to
> jump to the top of the TopN list so that we can garuntee they will be crawled
> immediately (usefull for intranet crawling where changes can trigger injects).
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