He's right. You can use the parameter "shards" for a very long time, even before the whole solr cloud existed.
e.g. http://localhost:8983/solr/core0/select with parameters: shards = localhost:8983/solr/core0,example.com:8983/solr/core0<http://example.com:8983/solr/core0> q = *:* defType = lucene Yes, I used same core name twice (in the path and in the parameter), but I do not see another way. You need to start the query at a query handler.. I guess your data is generated by several parties, each on their own core? That makes sense. On 9 Aug 2019, at 19:21, Vadim Ivanov <vadim.iva...@spb.ntk-intourist.ru<mailto:vadim.iva...@spb.ntk-intourist.ru>> wrote: May be consider having one collection with implicit sharding ? This way you can have all advantages of solrcloud and can control content of each core "manualy" as well as query them independently (&distrib=false) ... or some of them using &shards=core1,core2 as was proposed before Quote from doc " If you created the collection and defined the "implicit" router at the time of creation, you can additionally define a router.field parameter to use a field from each document to identify a shard where the document belongs. If the field specified is missing in the document, however, the document will be rejected. You could also use the _route_ parameter to name a specific shard." -- Vadim -----Original Message----- From: Komal Motwani [mailto:motwani.ko...@gmail.com] Sent: Friday, August 09, 2019 7:57 PM To: solr-user@lucene.apache.org<mailto:solr-user@lucene.apache.org> Subject: Re: Searches across Cores For some good reasons, SolrCloud is not an option for me. I need to run nested graph queries so firing parallel queries and taking union/intersection won't work. I am aware of achieving this via shards however I am looking for ways to achieve this via multiple cores. We already have data existing in multiple cores on which i need to add this feature. Thanks, Komal Motwani On Fri, Aug 9, 2019 at 8:57 PM Erick Erickson <erickerick...@gmail.com<mailto:erickerick...@gmail.com>> wrote: So my question is why do you have individual cores? Why not use SolrCloud and collections and have this happen automatically? There may be very good reasons, this is more if a sanity check…. On Aug 9, 2019, at 8:02 AM, Jan Høydahl <jan....@cominvent.com<mailto:jan....@cominvent.com>> wrote: USE request param &shards=core1,core2 or if on separate machines host:port/solr/core1,host:port/solr/core2 Jan Høydahl 9. aug. 2019 kl. 11:23 skrev Komal Motwani <motwani.ko...@gmail.com<mailto:motwani.ko...@gmail.com>>: Hi, I have a use case where I would like a query to span across Cores (Multi-Core); all the cores involved do have same schema. I have started using solr just recently and have been trying to find ways to achieve this but couldn’t find any solution so far (Distributed searches, shards are not what I am looking for). I remember in one of the tech talks, there was a mention of this feature to be included in future releases. Appreciate any pointers to help me progress further. Thanks, Komal Motwani
