solr have its replication way and it use rsync transport.
i try it but not success maybe because i m poor in freebsd.(if u know how to
config and use, tell me and i will be very happy.:) )
when i use mysql replication, i think why not use it?
master: mysql (innodb or isam), slave: mysql(isam), master---->slave with
replication.
we just write program in slave to read the data which solrflag is 0 and
index it.
User can seach through slave's index data.
if more solr's server, maybe use slave group.
master 1 ----> slave 1
master 2 ---> slave 2
.....
master n ---> slave n
i only test one master-> one slave
it can help we use multi platform..
maybe it have wrong or not fits for thousands searching
let me know what u think.
--
regards
jl