diff options
Diffstat (limited to 'src/core/ext/filters/client_channel')
| -rw-r--r-- | src/core/ext/filters/client_channel/client_channel.c | 18 | ||||
| -rw-r--r-- | src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c | 8 |
2 files changed, 12 insertions, 14 deletions
diff --git a/src/core/ext/filters/client_channel/client_channel.c b/src/core/ext/filters/client_channel/client_channel.c index 8d28e829d8..0463b25412 100644 --- a/src/core/ext/filters/client_channel/client_channel.c +++ b/src/core/ext/filters/client_channel/client_channel.c @@ -400,26 +400,24 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, GPR_ASSERT(channel_arg->type == GRPC_ARG_STRING); lb_policy_name = channel_arg->value.string; } - // Special case: If all of the addresses are balancer addresses, - // assume that we should use the grpclb policy, regardless of what the - // resolver actually specified. + // Special case: If at least one balancer address is present, we use + // the grpclb policy, regardless of what the resolver actually specified. channel_arg = grpc_channel_args_find(chand->resolver_result, GRPC_ARG_LB_ADDRESSES); if (channel_arg != NULL && channel_arg->type == GRPC_ARG_POINTER) { grpc_lb_addresses *addresses = channel_arg->value.pointer.p; - bool found_backend_address = false; + bool found_balancer_address = false; for (size_t i = 0; i < addresses->num_addresses; ++i) { - if (!addresses->addresses[i].is_balancer) { - found_backend_address = true; + if (addresses->addresses[i].is_balancer) { + found_balancer_address = true; break; } } - if (!found_backend_address) { + if (found_balancer_address) { if (lb_policy_name != NULL && strcmp(lb_policy_name, "grpclb") != 0) { gpr_log(GPR_INFO, - "resolver requested LB policy %s but provided only balancer " - "addresses, no backend addresses -- forcing use of grpclb LB " - "policy", + "resolver requested LB policy %s but provided at least one " + "balancer address -- forcing use of grpclb LB policy", lb_policy_name); } lb_policy_name = "grpclb"; diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c index f8524732df..ad5f0685ec 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c @@ -831,10 +831,10 @@ static grpc_lb_policy *glb_create(grpc_exec_ctx *exec_ctx, /* Count the number of gRPC-LB addresses. There must be at least one. * TODO(roth): For now, we ignore non-balancer addresses, but in the * future, we may change the behavior such that we fall back to using - * the non-balancer addresses if we cannot reach any balancers. At that - * time, this should be changed to allow a list with no balancer addresses, - * since the resolver might fail to return a balancer address even when - * this is the right LB policy to use. */ + * the non-balancer addresses if we cannot reach any balancers. In the + * fallback case, we should use the LB policy indicated by + * GRPC_ARG_LB_POLICY_NAME (although if that specifies grpclb or is + * unset, we should default to pick_first). */ const grpc_arg *arg = grpc_channel_args_find(args->args, GRPC_ARG_LB_ADDRESSES); if (arg == NULL || arg->type != GRPC_ARG_POINTER) { |