Are you doing it once? Is your index sharded? If so, can you ask each shard individually? Another way would be to do it on Lucene level, i.e. read from the binary indices (API exists).
Dmitry On Mon, May 6, 2013 at 5:48 AM, Mingfeng Yang <mfy...@wisewindow.com> wrote: > Dear Solr Users, > > Does anyone know what is the best way to iterate through each document in a > Solr index with billion entries? > > I tried to use select?q=*:*&start=xx&rows=500 to get 500 docs each time > and then change start value, but it got very slow after getting through > about 10 million docs. > > Thanks, > Ming- >