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https://issues.apache.org/jira/browse/NUTCH-1047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13562558#comment-13562558
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Julien Nioche commented on NUTCH-1047:
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Hi Lufeng.
The solrindex command in the nutch script works just as before. You can also
invoke the IndexingJob command and pass it the SOLR URL as a Hadoop parameter
e.g. {{-D solr.server.url=xxxxxx}}
SolrUtils is duplicated indeed because of DeleteDuplicates, which is a
SOLR-specific implementation. We need to build a generic deduplicator at some
point and it will use the pluggable backends. I decided to leave the SOLR-based
one in for now, but if most people don't use it then we should probably shelve
it. This is a separate issue though.
Thanks for your comments
> 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, NUTCH-1047-1.x-v2.patch,
> NUTCH-1047-1.x-v3.patch, NUTCH-1047-1.x-v4.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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