I need this as well. This is also a solution for non-solr-cloud Streaming Expressions.
Joel Bernstein http://joelsolr.blogspot.com/ On Fri, Feb 15, 2019 at 3:53 PM Gus Heck <gus.h...@gmail.com> wrote: > I've got a situation in which I want to run a streaming expression across > the cluster, but the actual effect is to join docs exclusively within a > core, and update that same core with the merger of the corresponding > documents (a denormalization). Composite id's should keep it all in the > same core so in theory this could all be done within a node, but I haven't > found a way to either > > 1.) Send an expression to a node/core such that it won't run on any other > core, and just execute locally. > 2.) Tell the expression that the whole thing can be pushed down to to the > node/core. > > I'm pondering the possibility of a local() expression that takes an > expression as an argument and distributes it to the nodes with a context or > parameter that indicates that all operations should be performed within the > node i.e. search() expressions would run with distrib=false.... But I've > yet to investigate if that's really feasible. > > So any thoughts on that? Any reasons it wouldn't be a good idea to create > something of that sort (hopefully to be contributed, but need to clear that > still). > > -Gus >
