diff options
Diffstat (limited to 'src/core/ext')
-rw-r--r-- | src/core/ext/client_config/client_channel.c | 32 | ||||
-rw-r--r-- | src/core/ext/lb_policy/grpclb/grpclb.c | 11 | ||||
-rw-r--r-- | src/core/ext/resolver/dns/native/dns_resolver.c | 11 | ||||
-rw-r--r-- | src/core/ext/resolver/sockaddr/sockaddr_resolver.c | 83 |
4 files changed, 41 insertions, 96 deletions
diff --git a/src/core/ext/client_config/client_channel.c b/src/core/ext/client_config/client_channel.c index 00567cc32a..19b621296e 100644 --- a/src/core/ext/client_config/client_channel.c +++ b/src/core/ext/client_config/client_channel.c @@ -191,10 +191,34 @@ static void on_resolver_result_changed(grpc_exec_ctx *exec_ctx, void *arg, lb_policy_args.additional_args = grpc_resolver_result_get_lb_policy_args(chand->resolver_result); lb_policy_args.client_channel_factory = chand->client_channel_factory; - lb_policy = grpc_lb_policy_create( - exec_ctx, - grpc_resolver_result_get_lb_policy_name(chand->resolver_result), - &lb_policy_args); + + // 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. + const char* lb_policy_name = + grpc_resolver_result_get_lb_policy_name(chand->resolver_result); + bool found_backend_address = false; + for (size_t i = 0; i < lb_policy_args.addresses->num_addresses; ++i) { + if (!lb_policy_args.addresses->addresses[i].is_balancer) { + found_backend_address = true; + break; + } + } + if (!found_backend_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", (lb_policy_name == NULL ? "(none)" : lb_policy_name)); + } + lb_policy_name = "grpclb"; + } + // Use pick_first if nothing was specified and we didn't select grpclb + // above. + if (lb_policy_name == NULL) lb_policy_name = "pick_first"; + + lb_policy = + grpc_lb_policy_create(exec_ctx, lb_policy_name, &lb_policy_args); if (lb_policy != NULL) { GRPC_LB_POLICY_REF(lb_policy, "config_change"); GRPC_ERROR_UNREF(state_error); diff --git a/src/core/ext/lb_policy/grpclb/grpclb.c b/src/core/ext/lb_policy/grpclb/grpclb.c index cda518394f..db425f817b 100644 --- a/src/core/ext/lb_policy/grpclb/grpclb.c +++ b/src/core/ext/lb_policy/grpclb/grpclb.c @@ -928,6 +928,9 @@ static void srv_status_rcvd_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error); static lb_client_data *lb_client_data_create(glb_lb_policy *glb_policy) { + GPR_ASSERT(glb_policy->server_name != NULL); + GPR_ASSERT(glb_policy->server_name[0] != '\0'); + lb_client_data *lb_client = gpr_malloc(sizeof(lb_client_data)); memset(lb_client, 0, sizeof(lb_client_data)); @@ -948,14 +951,14 @@ static lb_client_data *lb_client_data_create(glb_lb_policy *glb_policy) { lb_client->lb_call = grpc_channel_create_pollset_set_call( glb_policy->lb_channel, NULL, GRPC_PROPAGATE_DEFAULTS, glb_policy->base.interested_parties, - "/grpc.lb.v1.LoadBalancer/BalanceLoad", NULL, lb_client->deadline, NULL); + "/grpc.lb.v1.LoadBalancer/BalanceLoad", glb_policy->server_name, + lb_client->deadline, NULL); grpc_metadata_array_init(&lb_client->initial_metadata_recv); grpc_metadata_array_init(&lb_client->trailing_metadata_recv); - grpc_grpclb_request *request = grpc_grpclb_request_create( - "load.balanced.service.name"); /* FIXME(dgq): get the name of the load - balanced service from the resolver */ + grpc_grpclb_request *request = + grpc_grpclb_request_create(glb_policy->server_name); gpr_slice request_payload_slice = grpc_grpclb_request_encode(request); lb_client->request_payload = grpc_raw_byte_buffer_create(&request_payload_slice, 1); diff --git a/src/core/ext/resolver/dns/native/dns_resolver.c b/src/core/ext/resolver/dns/native/dns_resolver.c index e8ac1b12ae..3908547893 100644 --- a/src/core/ext/resolver/dns/native/dns_resolver.c +++ b/src/core/ext/resolver/dns/native/dns_resolver.c @@ -61,8 +61,6 @@ typedef struct { char *name_to_resolve; /** default port to use */ char *default_port; - /** load balancing policy name */ - char *lb_policy_name; /** mutex guarding the rest of the state */ gpr_mu mu; @@ -181,7 +179,7 @@ static void dns_on_resolved(grpc_exec_ctx *exec_ctx, void *arg, } grpc_resolved_addresses_destroy(r->addresses); result = grpc_resolver_result_create(r->target_name, addresses, - r->lb_policy_name, NULL); + NULL /* lb_policy_name */, NULL); } else { gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC); gpr_timespec next_try = gpr_backoff_step(&r->backoff_state, now); @@ -245,13 +243,11 @@ static void dns_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *gr) { gpr_free(r->target_name); gpr_free(r->name_to_resolve); gpr_free(r->default_port); - gpr_free(r->lb_policy_name); gpr_free(r); } static grpc_resolver *dns_create(grpc_resolver_args *args, - const char *default_port, - const char *lb_policy_name) { + const char *default_port) { if (0 != strcmp(args->uri->authority, "")) { gpr_log(GPR_ERROR, "authority based dns uri's not supported"); return NULL; @@ -272,7 +268,6 @@ static grpc_resolver *dns_create(grpc_resolver_args *args, r->default_port = gpr_strdup(default_port); gpr_backoff_init(&r->backoff_state, BACKOFF_MULTIPLIER, BACKOFF_JITTER, BACKOFF_MIN_SECONDS * 1000, BACKOFF_MAX_SECONDS * 1000); - r->lb_policy_name = gpr_strdup(lb_policy_name); return &r->base; } @@ -286,7 +281,7 @@ static void dns_factory_unref(grpc_resolver_factory *factory) {} static grpc_resolver *dns_factory_create_resolver( grpc_resolver_factory *factory, grpc_resolver_args *args) { - return dns_create(args, "https", "pick_first"); + return dns_create(args, "https"); } static char *dns_factory_get_default_host_name(grpc_resolver_factory *factory, diff --git a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c b/src/core/ext/resolver/sockaddr/sockaddr_resolver.c index e6bc03a1f8..dff0079aad 100644 --- a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c +++ b/src/core/ext/resolver/sockaddr/sockaddr_resolver.c @@ -41,7 +41,6 @@ #include <grpc/support/port_platform.h> #include <grpc/support/string_util.h> -#include "src/core/ext/client_config/method_config.h" #include "src/core/ext/client_config/parse_address.h" #include "src/core/ext/client_config/resolver_registry.h" #include "src/core/lib/channel/channel_args.h" @@ -58,10 +57,6 @@ typedef struct { char *target_name; /** the addresses that we've 'resolved' */ grpc_lb_addresses *addresses; - /** load balancing policy name */ - char *lb_policy_name; - /** method config table */ - grpc_method_config_table *method_config_table; /** mutex guarding the rest of the state */ gpr_mu mu; /** have we published? */ @@ -125,16 +120,10 @@ static void sockaddr_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx, sockaddr_resolver *r) { if (r->next_completion != NULL && !r->published) { r->published = true; - grpc_channel_args *lb_policy_args = NULL; - if (r->method_config_table != NULL) { - const grpc_arg arg = - grpc_method_config_table_create_channel_arg(r->method_config_table); - lb_policy_args = grpc_channel_args_copy_and_add(NULL /* src */, &arg, 1); - } *r->target_result = grpc_resolver_result_create( r->target_name, grpc_lb_addresses_copy(r->addresses, NULL /* user_data_copy */), - r->lb_policy_name, lb_policy_args); + NULL /* lb_policy_name */, NULL /* lb_policy_args */); grpc_exec_ctx_sched(exec_ctx, r->next_completion, GRPC_ERROR_NONE, NULL); r->next_completion = NULL; } @@ -145,8 +134,6 @@ static void sockaddr_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *gr) { gpr_mu_destroy(&r->mu); gpr_free(r->target_name); grpc_lb_addresses_destroy(r->addresses, NULL /* user_data_destroy */); - gpr_free(r->lb_policy_name); - grpc_method_config_table_unref(r->method_config_table); gpr_free(r); } @@ -176,7 +163,7 @@ char *unix_get_default_authority(grpc_resolver_factory *factory, static void do_nothing(void *ignored) {} static grpc_resolver *sockaddr_create( - grpc_resolver_args *args, const char *default_lb_policy_name, + grpc_resolver_args *args, int parse(grpc_uri *uri, struct sockaddr_storage *dst, size_t *len)) { if (0 != strcmp(args->uri->authority, "")) { gpr_log(GPR_ERROR, "authority based uri's not supported by the %s scheme", @@ -188,29 +175,6 @@ static grpc_resolver *sockaddr_create( memset(r, 0, sizeof(*r)); r->target_name = gpr_strdup(args->uri->path); - // Initialize LB policy name. - r->lb_policy_name = - gpr_strdup(grpc_uri_get_query_arg(args->uri, "lb_policy")); - if (r->lb_policy_name == NULL) { - r->lb_policy_name = gpr_strdup(default_lb_policy_name); - } - - // Get lb_enabled arg. - const char *lb_enabled_qpart = - grpc_uri_get_query_arg(args->uri, "lb_enabled"); - // Anything other than "0" is interpreted as true. - const bool lb_enabled = - lb_enabled_qpart != NULL && strcmp("0", lb_enabled_qpart) != 0; - if (strcmp("grpclb", r->lb_policy_name) == 0 && !lb_enabled) { - /* we want grpclb but the "resolved" addresses aren't LB enabled. Bail - * out, as this is meant mostly for tests. */ - gpr_log(GPR_ERROR, - "Requested 'grpclb' LB policy but resolved addresses don't " - "support load balancing."); - abort(); - } - - // Construct addresses. gpr_slice path_slice = gpr_slice_new(args->uri->path, strlen(args->uri->path), do_nothing); gpr_slice_buffer path_parts; @@ -228,58 +192,17 @@ static grpc_resolver *sockaddr_create( errors_found = true; } gpr_free(part_str); - r->addresses->addresses[i].is_balancer = lb_enabled; if (errors_found) break; } gpr_slice_buffer_destroy(&path_parts); gpr_slice_unref(path_slice); if (errors_found) { - gpr_free(r->lb_policy_name); gpr_free(r->target_name); grpc_lb_addresses_destroy(r->addresses, NULL /* user_data_destroy */); gpr_free(r); return NULL; } - // Construct method config table. - // We only support parameters for a single method. - const char *method_name = grpc_uri_get_query_arg(args->uri, "method_name"); - if (method_name != NULL) { - const char *wait_for_ready_str = - grpc_uri_get_query_arg(args->uri, "wait_for_ready"); - // Anything other than "0" is interpreted as true. - bool wait_for_ready = - wait_for_ready_str != NULL && strcmp("0", wait_for_ready_str) != 0; - const char *timeout_str = - grpc_uri_get_query_arg(args->uri, "timeout_seconds"); - gpr_timespec timeout = {timeout_str == NULL ? 0 : atoi(timeout_str), 0, - GPR_CLOCK_MONOTONIC}; - const char *max_request_message_bytes_str = - grpc_uri_get_query_arg(args->uri, "max_request_message_bytes"); - int32_t max_request_message_bytes = - max_request_message_bytes_str == NULL - ? 0 - : atoi(max_request_message_bytes_str); - const char *max_response_message_bytes_str = - grpc_uri_get_query_arg(args->uri, "max_response_message_bytes"); - int32_t max_response_message_bytes = - max_response_message_bytes_str == NULL - ? 0 - : atoi(max_response_message_bytes_str); - grpc_method_config *method_config = grpc_method_config_create( - wait_for_ready_str == NULL ? NULL : &wait_for_ready, - timeout_str == NULL ? NULL : &timeout, - max_request_message_bytes_str == NULL ? NULL - : &max_request_message_bytes, - max_response_message_bytes_str == NULL ? NULL - : &max_response_message_bytes); - grpc_method_config_table_entry entry = {grpc_mdstr_from_string(method_name), - method_config}; - r->method_config_table = grpc_method_config_table_create(1, &entry); - GRPC_MDSTR_UNREF(entry.method_name); - grpc_method_config_unref(method_config); - } - gpr_ref_init(&r->refs, 1); gpr_mu_init(&r->mu); grpc_resolver_init(&r->base, &sockaddr_resolver_vtable); @@ -298,7 +221,7 @@ static void sockaddr_factory_unref(grpc_resolver_factory *factory) {} #define DECL_FACTORY(name) \ static grpc_resolver *name##_factory_create_resolver( \ grpc_resolver_factory *factory, grpc_resolver_args *args) { \ - return sockaddr_create(args, "pick_first", parse_##name); \ + return sockaddr_create(args, parse_##name); \ } \ static const grpc_resolver_factory_vtable name##_factory_vtable = { \ sockaddr_factory_ref, sockaddr_factory_unref, \ |