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https://issues.apache.org/jira/browse/NUTCH-2750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16958929#comment-16958929
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ASF GitHub Bot commented on NUTCH-2750:
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sju commented on issue #483: Fix for NUTCH-2750
URL: https://github.com/apache/nutch/pull/483#issuecomment-545942680
@lewismc We run it like this:
`bin/nutch readdb <crawldb> -listen <port>`
It will then listen on the provided port for URL's.
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> improve CrawlDbReader & LinkDbReader reader handling
> ----------------------------------------------------
>
> Key: NUTCH-2750
> URL: https://issues.apache.org/jira/browse/NUTCH-2750
> Project: Nutch
> Issue Type: Improvement
> Components: crawldb, linkdb
> Affects Versions: 1.16
> Reporter: Jurian Broertjes
> Priority: Minor
>
> The current implementation in the CrawlDbReader re-opens readers for every
> URL. This is not very efficient. I've implemented a modification time check
> that only re-opens readers on updated crawlDB.
> PR: https://github.com/apache/nutch/pull/483
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