Multiple DataPlanes?
Possible useful enhancement. With the current SST design, there is only one dataplane per stream, with the result (generally) that the writer must choose a particular dataplane and all readers must employ the same one. However, it might be desirable for the dataplane to be negotiated between reader and writer, and possibly for the dataplane to be a per-reader thing (so that you could have a cluster-local reader that uses RDMA and an off-cluster reader using EVPath/sockets).