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From "Asitang Mishra (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (NUTCH-2011) Endpoint to support realtime JSON output from the fetcher
Date Fri, 22 May 2015 21:29:17 GMT

    [ https://issues.apache.org/jira/browse/NUTCH-2011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14556861#comment-14556861
] 

Asitang Mishra commented on NUTCH-2011:
---------------------------------------

Hi [~wastl-nagel],

-For the persistent storage: Can we maintain an in-memory map between the round number and
the segment id. The map will hardly take any space and we won't need to save anything new
in the crawldb or segments.
-For the temporary in-memory storage: We can try to put a new feature in Nutch where we can
provide a number say 20 and make the "rounds" that long. So, a new segment will be spit every
20 url. This will make the cycles shorter, and so, the JVM will not go out of memory.

> 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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