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https://issues.apache.org/jira/browse/NUTCH-1047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13564196#comment-13564196
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Julien Nioche commented on NUTCH-1047:
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Hi Tejas
It will work everytime you set it in nutch-site.xml. As for setting it with -D
in the crawl command - you definitely should not have to do that and this is
where the bug is. The problem is that for some reason we value we take from the
crawl command is correctly set in the configuration object however the later is
reloaded or overridden during the call to JobClient.runJob(job) (IndexingJob
line 120).
BTW the crawl command is deprecated and should be removed at some point as we
have the crawl script. Could you try using the SOLRIndex command as well as the
crawl script while I try and solve the problem with the crawl command?
Thanks
Julien
> 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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