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https://issues.apache.org/jira/browse/NUTCH-2132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sujen Shah updated NUTCH-2132:
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Attachment: NUTCH-2132.patch
Attaching a patch which describes my idea for a Pub/Sub model.
This contains the events being published and an interface which could have
multiple implementations of a queueing mechanism.
I have currently implemented it using RabbitMQ.
Feedback welcomed :)
> 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).
> 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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