They don't have to wait because they are not synchronized on anything AFAIK. I do believe they need to be registered as different request handler names in solrconfig.xml
But you need to be careful if they both/all wipe out data before indexing new one. Those calls could overlap. Regards, Alex. ---- http://www.solr-start.com/ - Resources for Solr users, new and experienced On 12 February 2017 at 16:14, Dave <hastings.recurs...@gmail.com> wrote: > That sounds pretty much like a hack. So if two imports happen at the same > time they have to wait for each other? > >> On Feb 12, 2017, at 4:01 PM, Shawn Heisey <apa...@elyograg.org> wrote: >> >>> On 2/12/2017 10:30 AM, Minh wrote: >>> Hi everyone, >>> How can i run multithreads of DIH in a cluster for a collection? >> >> The DIH handler is single-threaded. It used to have a config option for >> multiple threads, but it was removed since it didn't actually work. >> >> If you create multiple DIH handlers and start an import on them all at >> the same time, then you'll have multiple threads. >> >> Thanks, >> Shawn >>