Hello everyone, We are trying to setup routing via XDS to our GRPC services. Routing should be based on `node.cluster` information provided from client.
Basically we would like to have 2 groups of GRPC clusters (priority and normal) with same endpoints and choose right one by client `node.cluster` identification. I have very minimal setup [1] which works absolutely as we expected for java client but doesn't work for C++ (and grpc_cli). Node hashing implementation [2]. This is minimal setup to reproducing this behaviour, regular routing is more complicated. >From log perspective it looks like from C++ xds server receive `node.cluster` information just in first request. >From java I see cluster in all requests: grpc-default-executor-0] INFO org.example.xds.routing.XdsServer - Routing [priority] to priority group. [grpc-default-executor-1] INFO org.example.xds.routing.XdsServer - Routing [priority] to priority group. [grpc-default-executor-1] INFO org.example.xds.routing.XdsServer - Routing [priority] to priority group. [grpc-default-executor-0] INFO org.example.xds.routing.XdsServer - Routing [priority] to priority group. [grpc-default-executor-1] INFO org.example.xds.routing.XdsServer - Routing [priority] to priority group. [grpc-default-executor-2] INFO org.example.xds.routing.XdsServer - Routing [priority] to priority group. [grpc-default-executor-1] INFO org.example.xds.routing.XdsServer - Routing [priority] to priority group. [grpc-default-executor-2] INFO org.example.xds.routing.XdsServer - Routing [priority] to priority group. But from cli / c++ I see cluster just in first request: [grpc-default-executor-0] INFO org.example.xds.routing.XdsServer - Routing [priority] to priority group. [grpc-default-executor-0] INFO org.example.xds.routing.XdsServer - Routing [] to normal group. [grpc-default-executor-0] INFO org.example.xds.routing.XdsServer - Routing [] to normal group. This leads to expected error when c++ client is trying to get priority listeners and routes from default group. Can somebody give me any hint what's wrong here? Thanks a lot! L. [1] https://github.com/LesTR/xds-routing-test [2] https://github.com/LesTR/xds-routing-test/blob/master/src/main/java/org/example/xds/routing/XdsServer.java#L61 -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/1de7e140-862f-414f-b25a-7b1afc4069can%40googlegroups.com.
