On 8/28/2015 8:10 AM, Bill Au wrote: > Is core swapping supported in SolrCloud? If I have a 5 nodes SolrCloud > cluster and I do a core swap on the leader, will the core be swapped on the > other 4 nodes as well? Or do I need to do a core swap on each node?
When you're running SolrCloud, swapping any of the cores might really screw things up. I think it might be a good idea for Solr to return a "not supported in cloud mode" failure on certain CoreAdmin actions. Instead, use collection aliasing. Create collections named something like foo_0 and foo_1, and update the alias "foo" to point to whichever of them is currently live. Your queries and update requests will never need to know about foo_0 and foo_1 ... only the coordinating part of your system, where you would normally do your core swapping, needs to know about those. Thanks, Shawn
