Hi, I just wonder how does gRPC LB handles the bi-directional stream? Once it picks which server instance to serve the streaming request, then it will continue the streaming request only with that particular server?
On Tuesday, July 31, 2018 at 11:30:41 AM UTC-7, Carl Mastrangelo wrote: > > In release 1.14, it is now possible to use gPRC LB, gRPC's full featured > load balancer client. This is an experimental feature that contacts a gRPC > LB server to get load balancing data. > > To get started, you will need to set the JVM flag > "-Dio.grpc.internal.DnsNameResolverProvider.enable_grpclb=true", and > include the grpc-grpclb artifact on your class path. This enables using > DNS SRV records to point to gRPCLB servers when doing load balancing. > > The DNS entries need to be in a specific format to be usable. For a > service called "api.service.com", It should look something like this: > > A api.service.com - 127.0.0.1 > AAAA api.service.com - ::1 > SRV _grpclb._tcp.api.service.com - lb.service.com > A lb.service.com - 192.168.0.1 > > > gRPC will check for an SRV record with the prefix "_grpclb._tcp" on the > target you provide to the channel. If present, gRPC will use the addresses > of THAT domain as balancer addresses. In LB parlance, lb.service.com is > a *balancer* address, while api.service.com is a *backend* address. > Balanacer addresses must speak the gRPCLB protocol (as defined in the > proto). > > There will be upcoming documentation on the exact way to configure this, > but this is being announced here for interested parties to try it out and > answer any questions. > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to grpc-io+unsubscr...@googlegroups.com. To post to this group, send email to grpc-io@googlegroups.com. Visit this group at https://groups.google.com/group/grpc-io. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/1f66b078-fb95-46dd-bbb0-bbaad8cceb2b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
