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https://issues.apache.org/jira/browse/NUTCH-2011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14552524#comment-14552524
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Sebastian Nagel commented on NUTCH-2011:
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Yes, relying on CrawlDb should be the right way to get the information by
running a MapReduce job.
The in-memory FetchNodeDb has the disadvantage that it is bound to the JVM: if
Nutch is run in (pseudo)distributed mode it will only contain the information
about the documents fetched in one fetcher task.
> Endpoint to support realtime JSON output from the fetcher
> ---------------------------------------------------------
>
> Key: NUTCH-2011
> URL: https://issues.apache.org/jira/browse/NUTCH-2011
> Project: Nutch
> Issue Type: Sub-task
> Components: fetcher, REST_api
> Reporter: Sujen Shah
> Assignee: Chris A. Mattmann
> Labels: memex
> Fix For: 1.11
>
>
> This fix will create an endpoint to query the Nutch REST service and get a
> real-time JSON response of the current/past Fetched URLs.
> This endpoint also includes pagination of the output to reduce data transfer
> bw in large crawls.
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