As of now only ONE instance can be active at a time. Atlas does not have the capability to concurrently talk to same JanusGraph across different instances.
In this ACTIVE-PASSIVE setup the REST calls will get directed to the active instance. Hope this helps. *Apoorv Naik* On Tue, Nov 20, 2018 at 10:19 AM abhay kumar <abhaykuma...@gmail.com> wrote: > Hi, > I have been trying to find out about how apache atlas horizontally scales. > There is no information provided in apache atlas document. Could you please > help me understand how atlas scales out. > 1. Can multiple instances of it deployed on different machines ( all > connected to same backend storage e.g. cassandra) and have instances to > actively take rest calls for processing ( create/read/update/search types > and entities). > 2. Would there be any issue with locking/transaction if all instances > process the request ? > > I understand that the backend storage can be scaled out but I do not know > apache atlas process, which uses janusdb, scales out. > > Thanks & Regards, > Abhay >