You can certainly replicate the joined collection to every shard. It must fit in one shard and a replica of that shard must be co-located with every replica of the “to” collection.
Have you looked at streaming and “streaming expressions"? It does not have the same problem, although it does have its own limitations. Best, Erick > On Oct 15, 2019, at 6:58 PM, Nicolas Paris <nicolas.pa...@riseup.net> wrote: > > Hi > > I have several large collections that cannot fit in a standalone solr > instance. They are split over multiple shards in solr-cloud mode. > > Those collections are supposed to be joined to an other collection to > retrieve subset. Because I am using distributed collections, I am not > able to use the solr join feature. > > For this reason, I denormalize the information by adding the joined > collection within every collections. Naturally, when I want to update > the joined collection, I have to update every one of the distributed > collections. > > In standalone mode, I only would have to update the joined collection. > > I wonder if there is a way to overcome this limitation. For example, by > replicating the joined collection to every shard - or other method I am > ignoring. > > Any thought ? > -- > nicolas
