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Posted to dev@nutch.apache.org by "Roannel Fernández Hernández (JIRA)" <ji...@apache.org> on 2015/10/02 15:16:27 UTC
[jira] [Commented] (NUTCH-2132) Publisher/Subscriber model for
Nutch to emit events
[ https://issues.apache.org/jira/browse/NUTCH-2132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14941114#comment-14941114 ]
Roannel Fernández Hernández commented on NUTCH-2132:
----------------------------------------------------
I think you have a great idea
> Publisher/Subscriber model for Nutch to emit events
> ----------------------------------------------------
>
> Key: NUTCH-2132
> URL: https://issues.apache.org/jira/browse/NUTCH-2132
> Project: Nutch
> Issue Type: New Feature
> Components: fetcher, REST_api
> Reporter: Sujen Shah
> Labels: memex
> Fix For: 1.11
>
> Attachments: NUTCH-2132.patch
>
>
> It would be nice to have a Pub/Sub model in Nutch to emit certain events (ex- Fetcher events like fetch-start, fetch-end, a fetch report which may contain data like outlinks of the current fetched url, score, etc).
> A consumer of this functionality could use this data to generate real time visualization and generate statics of the crawl without having to wait for the fetch round to finish.
> The REST API could contain an endpoint which would respond with a url to which a client could subscribe to get the fetcher events.
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