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https://issues.apache.org/jira/browse/NUTCH-1047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julien Nioche updated NUTCH-1047:
---------------------------------

    Attachment: NUTCH-1047-1.x-v1.patch

This is work in progress.
This patch creates a new endpoint (IndexWriter) that plugins can implement. 
Comes with one such plugin (indexer-solr) and generic code for replacing the 
index and delete jobs. Haven't tested very much. The main difference is that 
the SOLR URL must be passed as a Hadoop param e.g. -D solr.server.url. It could 
also be put in the nutch-site.xml once and for all. 
There will be some cleaning to do once this is stable to remove the SOLR stuff 
in the core code etc...
Please have a look and let me know your thoughts on this
                
> Pluggable indexing backends
> ---------------------------
>
>                 Key: NUTCH-1047
>                 URL: https://issues.apache.org/jira/browse/NUTCH-1047
>             Project: Nutch
>          Issue Type: New Feature
>          Components: indexer
>            Reporter: Julien Nioche
>            Assignee: Julien Nioche
>              Labels: indexing
>             Fix For: 1.7
>
>         Attachments: NUTCH-1047-1.x-v1.patch
>
>
> One possible feature would be to add a new endpoint for indexing-backends and 
> make the indexing plugable. at the moment we are hardwired to SOLR - which is 
> OK - but as other resources like ElasticSearch are becoming more popular it 
> would be better to handle this as plugins. Not sure about the name of the 
> endpoint though : we already have indexing-plugins (which are about 
> generating fields sent to the backends) and moreover the backends are not 
> necessarily for indexing / searching but could be just an external storage 
> e.g. CouchDB. The term backend on its own would be confusing in 2.0 as this 
> could be pertaining to the storage in GORA. 'indexing-backend' is the best 
> name that came to my mind so far - please suggest better ones.
> We should come up with generic map/reduce jobs for indexing, deduplicating 
> and cleaning and maybe add a Nutch extension point there so we can easily 
> hook up indexing, cleaning and deduplicating for various backends.

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