[jira] Updated: (NUTCH-669) Consolidate code for Fetcher and Fetcher2

["Otis Gospodnetic (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NUTCH-669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Otis Gospodnetic updated NUTCH-669:
-----------------------------------

         Priority: Major  (was: Minor)
    Fix Version/s: 1.0.0

+1 -- people, vote for it.  This could go in 1.0, right?


> Consolidate code for Fetcher and Fetcher2
> -----------------------------------------
>
>                 Key: NUTCH-669
>                 URL: https://issues.apache.org/jira/browse/NUTCH-669
>             Project: Nutch
>          Issue Type: Improvement
>          Components: fetcher
>    Affects Versions: 0.9.0
>            Reporter: Todd Lipcon
>             Fix For: 1.0.0
>
>
> I'd like to consolidate a lot of the common code between Fetcher and Fetcher2.java.
> It seems to me like there are the following differences:
>   - Fetcher relies on the Protocol to obey robots.txt and crawl delay settings whereas Fetcher2 implements them itself
>   - Fetcher2 uses a different queueing model (queue per crawl host) to accomplish the per-host limiting without making the Protocol do it.
> I've begun work on this but want to check with people on the following:
> - What reason is there for Fetcher existing at all since Fetcher2 seems to be a superset of functionality?
> - Is it on the road map to remove the robots/delay logic from the Http protocol and make Fetcher2's delegation of duties the standard?
> - Any other improvements wanted for Fetcher while I am in and around the code?

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