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From Erick Erickson <>
Subject Re: How to import a part of index from main Solr server(based on a query) to another Solr server and then do incremental import at intervals later(the updated index)?
Date Fri, 12 Oct 2012 22:20:15 GMT
Hmmm, not quite what you asked, but would it work to just
replicate from Solr1 to Solr2 when you want to synch? You
can trigger this via http, see:

If you're talking about individual documents, then the answer
is no. There's nothing as far as I know that moves just a single
document. If you've stored all the fields, you could fetch the doc
from solr1 and index it to solr2, but that's kinda kludgy...


On Fri, Oct 12, 2012 at 4:44 PM, jefferyyuan <> wrote:
> I have a main solr server(solr1) which stores indexes of all docs, and want
> to implement the following function:
> 1. First make a full import of my doc updated/created recently(last 1 or 2
> weeks) from solr1.
> 2. Make delta import at intervals to copy the change of my doc from solr1 to
> solr2. - doc may be deleted, updated, created during this period.
> -- as the function supported by SqlEntityProcessor to import data from DB to
> Solr.
> SolrEntityProcessor can make a full-import from one Solr to another solr
> based on a query(using query parameter in config file), but seems can't do
> delta import later: no deltaImportQuery and deltaQuery configuration, which
> is supported in SqlEntityProcessor.
> I have a field last_modified which records the timestamp an doc is created
> or updated.
> Task1 can be easily implemented: <entity name="sep"
> processor="SolrEntityProcessor" query="+from:jeffery
> +last_modified:[${dataimporter.request.start_time} TO NOW]"
> url="mainsolr:8080/solr/"/>;
> But how can implement incremental import with SolrEntityProcessor? Seems
> SolrEntityProcessor doesn't support "command=delta-import".
> Thanks for any reply and help :)
> --
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