My understanding is the same that "{!join...}" does not work in SolrCloud (aka
distributed search)
based on:
1. https://issues.apache.org/jira/browse/LUCENE-3759
2. http://wiki.apache.org/solr/DistributedSearch
--- see "Limitations" section which refers to the JIRA above
-- James
-----Original Message-----
From: Upayavira [mailto:[email protected]]
Sent: Tuesday, June 25, 2013 7:55 PM
To: [email protected]
Subject: Re: Joins with SolrCloud
I have never heard mention that joins support distributed search, so you cannot
do a join against a sharded core.
However, if from your example, innerCollection was replicated across all nodes,
I would think that should work, because all that comes back from each server
when a distributed search happens is the best 'n' matches, so exactly how those
'n' matches were located doesn't matter particularly.
Simpler answer: try it!
Upayavira
On Tue, Jun 25, 2013, at 11:25 PM, Chris Toomey wrote:
> What are the restrictions/limitations w.r.t. joins when using SolrCloud?
>
> Say I have a 3-node cluster and both my "outer" and "inner"
> collections are sharded 3 ways across the cluster. Could I do a query
> such as
> "select?q={!join+from=inner_id+fromIndex=innerCollection+to=outer_id}xx:foo&collection=outerCollection"?
>
> Or if the above isn't supported, would it be if the "inner" collection
> was not sharded and was replicated across all 3 nodes, so that it
> existed in its entirety on each node?
>
> thx,
> Chris
