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From "Reitzel, Charles" <Charles.Reit...@tiaa-cref.org>
Subject RE: The best way to exclude "seen" results from search queries
Date Thu, 11 Jun 2015 17:06:23 GMT
So long as the fields are indexed, I think performance should be ok.

Personally, I would also look at using a single document per user with a multi-valued field
for recommendation ID.   Assuming only a small fraction of all recommendation IDs are ever
presented to any single user, this schema would be physically much smaller and require only
a single document per user.

I don't know the answer to your sharding question.   The join query is available out of the
box, so it should be quick work to set up a two-shard sample and test the distributed sub-query.

That said, with the scales you are talking about, I question if sharding is necessary.   You
can still use replication for load balancing without sharding.

-----Original Message-----
From: amid [mailto:amid@donanza.com] 
Sent: Thursday, June 11, 2015 12:36 PM
To: solr-user@lucene.apache.org
Subject: RE: The best way to exclude "seen" results from search queries

Thanks allot Charles,

This seems to be what I'm looking for.
Do you know if join for this amount of documents & user will still have good query performance?
also, is there any limitations for the solr architecture once using the "join" method (i.e.
sharding)?

Many thanks,
Ami



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