Merge pull request #8588 from murgatroid99/uv_resource_quota
Add resource quota support to uv TCP code
diff --git a/Makefile b/Makefile
index 88fef56..81c4960 100644
--- a/Makefile
+++ b/Makefile
@@ -1076,6 +1076,7 @@
qps_worker: $(BINDIR)/$(CONFIG)/qps_worker
reconnect_interop_client: $(BINDIR)/$(CONFIG)/reconnect_interop_client
reconnect_interop_server: $(BINDIR)/$(CONFIG)/reconnect_interop_server
+round_robin_end2end_test: $(BINDIR)/$(CONFIG)/round_robin_end2end_test
secure_auth_context_test: $(BINDIR)/$(CONFIG)/secure_auth_context_test
secure_sync_unary_ping_pong_test: $(BINDIR)/$(CONFIG)/secure_sync_unary_ping_pong_test
server_builder_plugin_test: $(BINDIR)/$(CONFIG)/server_builder_plugin_test
@@ -1454,6 +1455,7 @@
$(BINDIR)/$(CONFIG)/qps_worker \
$(BINDIR)/$(CONFIG)/reconnect_interop_client \
$(BINDIR)/$(CONFIG)/reconnect_interop_server \
+ $(BINDIR)/$(CONFIG)/round_robin_end2end_test \
$(BINDIR)/$(CONFIG)/secure_auth_context_test \
$(BINDIR)/$(CONFIG)/secure_sync_unary_ping_pong_test \
$(BINDIR)/$(CONFIG)/server_builder_plugin_test \
@@ -1543,6 +1545,7 @@
$(BINDIR)/$(CONFIG)/qps_worker \
$(BINDIR)/$(CONFIG)/reconnect_interop_client \
$(BINDIR)/$(CONFIG)/reconnect_interop_server \
+ $(BINDIR)/$(CONFIG)/round_robin_end2end_test \
$(BINDIR)/$(CONFIG)/secure_auth_context_test \
$(BINDIR)/$(CONFIG)/secure_sync_unary_ping_pong_test \
$(BINDIR)/$(CONFIG)/server_builder_plugin_test \
@@ -1852,6 +1855,8 @@
$(Q) $(BINDIR)/$(CONFIG)/proto_server_reflection_test || ( echo test proto_server_reflection_test failed ; exit 1 )
$(E) "[RUN] Testing qps_openloop_test"
$(Q) $(BINDIR)/$(CONFIG)/qps_openloop_test || ( echo test qps_openloop_test failed ; exit 1 )
+ $(E) "[RUN] Testing round_robin_end2end_test"
+ $(Q) $(BINDIR)/$(CONFIG)/round_robin_end2end_test || ( echo test round_robin_end2end_test failed ; exit 1 )
$(E) "[RUN] Testing secure_auth_context_test"
$(Q) $(BINDIR)/$(CONFIG)/secure_auth_context_test || ( echo test secure_auth_context_test failed ; exit 1 )
$(E) "[RUN] Testing secure_sync_unary_ping_pong_test"
@@ -13022,6 +13027,49 @@
$(OBJDIR)/$(CONFIG)/test/cpp/interop/reconnect_interop_server.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
+ROUND_ROBIN_END2END_TEST_SRC = \
+ test/cpp/end2end/round_robin_end2end_test.cc \
+
+ROUND_ROBIN_END2END_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(ROUND_ROBIN_END2END_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/round_robin_end2end_test: openssl_dep_error
+
+else
+
+
+
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build the protoc plugins or protobuf-enabled targets if you don't have protobuf 3.0.0+.
+
+$(BINDIR)/$(CONFIG)/round_robin_end2end_test: protobuf_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/round_robin_end2end_test: $(PROTOBUF_DEP) $(ROUND_ROBIN_END2END_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+ $(E) "[LD] Linking $@"
+ $(Q) mkdir -p `dirname $@`
+ $(Q) $(LDXX) $(LDFLAGS) $(ROUND_ROBIN_END2END_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) $(GTEST_LIB) -o $(BINDIR)/$(CONFIG)/round_robin_end2end_test
+
+endif
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/cpp/end2end/round_robin_end2end_test.o: $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_round_robin_end2end_test: $(ROUND_ROBIN_END2END_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(ROUND_ROBIN_END2END_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
SECURE_AUTH_CONTEXT_TEST_SRC = \
test/cpp/common/secure_auth_context_test.cc \
diff --git a/build.yaml b/build.yaml
index f86d896..5cf4f5e 100644
--- a/build.yaml
+++ b/build.yaml
@@ -3335,6 +3335,19 @@
- gpr_test_util
- gpr
- grpc++_test_config
+- name: round_robin_end2end_test
+ gtest: true
+ build: test
+ language: c++
+ src:
+ - test/cpp/end2end/round_robin_end2end_test.cc
+ deps:
+ - grpc++_test_util
+ - grpc_test_util
+ - grpc++
+ - grpc
+ - gpr_test_util
+ - gpr
- name: secure_auth_context_test
gtest: true
build: test
diff --git a/include/grpc++/support/channel_arguments.h b/include/grpc++/support/channel_arguments.h
index ba203f8..49a3e94 100644
--- a/include/grpc++/support/channel_arguments.h
+++ b/include/grpc++/support/channel_arguments.h
@@ -85,6 +85,11 @@
/// The given buffer pool will be attached to the constructed channel
void SetResourceQuota(const ResourceQuota& resource_quota);
+ /// Set LB policy name.
+ /// Note that if the name resolver returns only balancer addresses, the
+ /// grpclb LB policy will be used, regardless of what is specified here.
+ void SetLoadBalancingPolicyName(const grpc::string& lb_policy_name);
+
// Generic channel argument setters. Only for advanced use cases.
/// Set an integer argument \a value under \a key.
void SetInt(const grpc::string& key, int value);
diff --git a/setup.py b/setup.py
index cdd3bb3..559a75f 100644
--- a/setup.py
+++ b/setup.py
@@ -52,6 +52,7 @@
CORE_INCLUDE = ('include', '.',)
BORINGSSL_INCLUDE = (os.path.join('third_party', 'boringssl', 'include'),)
ZLIB_INCLUDE = (os.path.join('third_party', 'zlib'),)
+README = os.path.join(PYTHON_STEM, 'README.rst')
# Ensure we're in the proper directory whether or not we're being used by pip.
os.chdir(os.path.dirname(os.path.abspath(__file__)))
@@ -259,6 +260,7 @@
name='grpcio',
version=grpc_version.VERSION,
license=LICENSE,
+ long_description=open(README).read(),
ext_modules=CYTHON_EXTENSION_MODULES,
packages=list(PACKAGES),
package_dir=PACKAGE_DIRECTORIES,
diff --git a/src/core/ext/client_channel/lb_policy.h b/src/core/ext/client_channel/lb_policy.h
index 54ad779..120c641 100644
--- a/src/core/ext/client_channel/lb_policy.h
+++ b/src/core/ext/client_channel/lb_policy.h
@@ -109,10 +109,16 @@
/*#define GRPC_LB_POLICY_REFCOUNT_DEBUG*/
#ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG
+
+/* Strong references: the policy will shutdown when they reach zero */
#define GRPC_LB_POLICY_REF(p, r) \
grpc_lb_policy_ref((p), __FILE__, __LINE__, (r))
#define GRPC_LB_POLICY_UNREF(exec_ctx, p, r) \
grpc_lb_policy_unref((exec_ctx), (p), __FILE__, __LINE__, (r))
+
+/* Weak references: they don't prevent the shutdown of the LB policy. When no
+ * strong references are left but there are still weak ones, shutdown is called.
+ * Once the weak reference also reaches zero, the LB policy is destroyed. */
#define GRPC_LB_POLICY_WEAK_REF(p, r) \
grpc_lb_policy_weak_ref((p), __FILE__, __LINE__, (r))
#define GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, p, r) \
diff --git a/src/core/ext/lb_policy/grpclb/grpclb.c b/src/core/ext/lb_policy/grpclb/grpclb.c
index 6da4feb..734108a 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb.c
+++ b/src/core/ext/lb_policy/grpclb/grpclb.c
@@ -43,30 +43,23 @@
* policy to select from this list of LB server backends.
*
* The first time the policy gets a request for a pick, a ping, or to exit the
- * idle state, \a query_for_backends() is called. It creates an instance of \a
- * lb_client_data, an internal struct meant to contain the data associated with
- * the internal communication with the LB server. This instance is created via
- * \a lb_client_data_create(). There, the call over lb_channel to pick-first
- * from {a1..an} is created, the \a LoadBalancingRequest message is assembled
- * and all necessary callbacks for the progress of the internal call configured.
+ * idle state, \a query_for_backends_locked() is called. This function sets up
+ * and initiates the internal communication with the LB server. In particular,
+ * it's responsible for instantiating the internal *streaming* call to the LB
+ * server (whichever address from {a1..an} pick-first chose). This call is
+ * serviced by two callbacks, \a lb_on_server_status_received and \a
+ * lb_on_response_received. The former will be called when the call to the LB
+ * server completes. This can happen if the LB server closes the connection or
+ * if this policy itself cancels the call (for example because it's shutting
+ * down). If the internal call times out, the usual behavior of pick-first
+ * applies, continuing to pick from the list {a1..an}.
*
- * Back in \a query_for_backends(), the internal *streaming* call to the LB
- * server (whichever address from {a1..an} pick-first chose) is kicked off.
- * It'll progress over the callbacks configured in \a lb_client_data_create()
- * (see the field docstrings of \a lb_client_data for more details).
- *
- * If the call fails with UNIMPLEMENTED, the original call will also fail.
- * There's a misconfiguration somewhere: at least one of {a1..an} isn't a LB
- * server, which contradicts the LB bit being set. If the internal call times
- * out, the usual behavior of pick-first applies, continuing to pick from the
- * list {a1..an}.
- *
- * Upon sucesss, a \a LoadBalancingResponse is expected in \a res_recv_cb. An
- * invalid one results in the termination of the streaming call. A new streaming
- * call should be created if possible, failing the original call otherwise.
- * For a valid \a LoadBalancingResponse, the server list of actual backends is
- * extracted. A Round Robin policy will be created from this list. There are two
- * possible scenarios:
+ * Upon sucesss, the incoming \a LoadBalancingResponse is processed by \a
+ * res_recv. An invalid one results in the termination of the streaming call. A
+ * new streaming call should be created if possible, failing the original call
+ * otherwise. For a valid \a LoadBalancingResponse, the server list of actual
+ * backends is extracted. A Round Robin policy will be created from this list.
+ * There are two possible scenarios:
*
* 1. This is the first server list received. There was no previous instance of
* the Round Robin policy. \a rr_handover_locked() will instantiate the RR
@@ -84,10 +77,10 @@
* Once a RR policy instance is in place (and getting updated as described),
* calls to for a pick, a ping or a cancellation will be serviced right away by
* forwarding them to the RR instance. Any time there's no RR policy available
- * (ie, right after the creation of the gRPCLB policy, if an empty serverlist
- * is received, etc), pick/ping requests are added to a list of pending
- * picks/pings to be flushed and serviced as part of \a rr_handover_locked() the
- * moment the RR policy instance becomes available.
+ * (ie, right after the creation of the gRPCLB policy, if an empty serverlist is
+ * received, etc), pick/ping requests are added to a list of pending picks/pings
+ * to be flushed and serviced as part of \a rr_handover_locked() the moment the
+ * RR policy instance becomes available.
*
* \see https://github.com/grpc/grpc/blob/master/doc/load-balancing.md for the
* high level design and details. */
@@ -120,12 +113,20 @@
#include "src/core/ext/lb_policy/grpclb/grpclb.h"
#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/iomgr/sockaddr.h"
#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/support/backoff.h"
#include "src/core/lib/support/string.h"
#include "src/core/lib/surface/call.h"
#include "src/core/lib/surface/channel.h"
#include "src/core/lib/transport/static_metadata.h"
+#define BACKOFF_MULTIPLIER 1.6
+#define BACKOFF_JITTER 0.2
+#define BACKOFF_MIN_SECONDS 10
+#define BACKOFF_MAX_SECONDS 60
+
int grpc_lb_glb_trace = 0;
/* add lb_token of selected subchannel (address) to the call's initial
@@ -174,13 +175,12 @@
static void wrapped_rr_closure(grpc_exec_ctx *exec_ctx, void *arg,
grpc_error *error) {
wrapped_rr_closure_arg *wc_arg = arg;
- if (wc_arg->rr_policy != NULL) {
- if (grpc_lb_glb_trace) {
- gpr_log(GPR_INFO, "Unreffing RR (0x%" PRIxPTR ")",
- (intptr_t)wc_arg->rr_policy);
- }
- GRPC_LB_POLICY_UNREF(exec_ctx, wc_arg->rr_policy, "wrapped_rr_closure");
+ GPR_ASSERT(wc_arg->wrapped_closure != NULL);
+ grpc_exec_ctx_sched(exec_ctx, wc_arg->wrapped_closure, GRPC_ERROR_REF(error),
+ NULL);
+
+ if (wc_arg->rr_policy != NULL) {
/* if target is NULL, no pick has been made by the RR policy (eg, all
* addresses failed to connect). There won't be any user_data/token
* available */
@@ -189,10 +189,12 @@
wc_arg->lb_token_mdelem_storage,
GRPC_MDELEM_REF(wc_arg->lb_token));
}
+ if (grpc_lb_glb_trace) {
+ gpr_log(GPR_INFO, "Unreffing RR (0x%" PRIxPTR ")",
+ (intptr_t)wc_arg->rr_policy);
+ }
+ GRPC_LB_POLICY_UNREF(exec_ctx, wc_arg->rr_policy, "wrapped_rr_closure");
}
- GPR_ASSERT(wc_arg->wrapped_closure != NULL);
- grpc_exec_ctx_sched(exec_ctx, wc_arg->wrapped_closure, GRPC_ERROR_REF(error),
- NULL);
GPR_ASSERT(wc_arg->free_when_done != NULL);
gpr_free(wc_arg->free_when_done);
}
@@ -264,7 +266,6 @@
* glb_lb_policy
*/
typedef struct rr_connectivity_data rr_connectivity_data;
-struct lb_client_data;
static const grpc_lb_policy_vtable glb_lb_policy_vtable;
typedef struct glb_lb_policy {
/** base policy: must be first */
@@ -296,20 +297,47 @@
* response has arrived. */
grpc_grpclb_serverlist *serverlist;
- /** addresses from \a serverlist */
- grpc_lb_addresses *addresses;
-
/** list of picks that are waiting on RR's policy connectivity */
pending_pick *pending_picks;
/** list of pings that are waiting on RR's policy connectivity */
pending_ping *pending_pings;
- /** client data associated with the LB server communication */
- struct lb_client_data *lb_client;
+ bool shutting_down;
- /** for tracking of the RR connectivity */
- rr_connectivity_data *rr_connectivity;
+ /************************************************************/
+ /* client data associated with the LB server communication */
+ /************************************************************/
+ /* Status from the LB server has been received. This signals the end of the LB
+ * call. */
+ grpc_closure lb_on_server_status_received;
+
+ /* A response from the LB server has been received. Process it */
+ grpc_closure lb_on_response_received;
+
+ grpc_call *lb_call; /* streaming call to the LB server, */
+
+ grpc_metadata_array lb_initial_metadata_recv; /* initial MD from LB server */
+ grpc_metadata_array
+ lb_trailing_metadata_recv; /* trailing MD from LB server */
+
+ /* what's being sent to the LB server. Note that its value may vary if the LB
+ * server indicates a redirect. */
+ grpc_byte_buffer *lb_request_payload;
+
+ /* response the LB server, if any. Processed in lb_on_response_received() */
+ grpc_byte_buffer *lb_response_payload;
+
+ /* call status code and details, set in lb_on_server_status_received() */
+ grpc_status_code lb_call_status;
+ char *lb_call_status_details;
+ size_t lb_call_status_details_capacity;
+
+ /** LB call retry backoff state */
+ gpr_backoff lb_call_backoff_state;
+
+ /** LB call retry timer */
+ grpc_timer lb_call_retry_timer;
} glb_lb_policy;
/* Keeps track and reacts to changes in connectivity of the RR instance */
@@ -358,6 +386,28 @@
static const grpc_lb_user_data_vtable lb_token_vtable = {
lb_token_copy, lb_token_destroy, lb_token_cmp};
+static void parse_server(const grpc_grpclb_server *server,
+ grpc_resolved_address *addr) {
+ const uint16_t netorder_port = htons((uint16_t)server->port);
+ /* the addresses are given in binary format (a in(6)_addr struct) in
+ * server->ip_address.bytes. */
+ const grpc_grpclb_ip_address *ip = &server->ip_address;
+ memset(addr, 0, sizeof(*addr));
+ if (ip->size == 4) {
+ addr->len = sizeof(struct sockaddr_in);
+ struct sockaddr_in *addr4 = (struct sockaddr_in *)&addr->addr;
+ addr4->sin_family = AF_INET;
+ memcpy(&addr4->sin_addr, ip->bytes, ip->size);
+ addr4->sin_port = netorder_port;
+ } else if (ip->size == 16) {
+ addr->len = sizeof(struct sockaddr_in6);
+ struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr->addr;
+ addr6->sin6_family = AF_INET;
+ memcpy(&addr6->sin6_addr, ip->bytes, ip->size);
+ addr6->sin6_port = netorder_port;
+ }
+}
+
/* Returns addresses extracted from \a serverlist. */
static grpc_lb_addresses *process_serverlist(
const grpc_grpclb_serverlist *serverlist) {
@@ -384,33 +434,18 @@
if (!is_server_valid(serverlist->servers[sl_idx], sl_idx, false)) continue;
/* address processing */
- const uint16_t netorder_port = htons((uint16_t)server->port);
- /* the addresses are given in binary format (a in(6)_addr struct) in
- * server->ip_address.bytes. */
- const grpc_grpclb_ip_address *ip = &server->ip_address;
grpc_resolved_address addr;
- memset(&addr, 0, sizeof(addr));
- if (ip->size == 4) {
- addr.len = sizeof(struct sockaddr_in);
- struct sockaddr_in *addr4 = (struct sockaddr_in *)&addr.addr;
- addr4->sin_family = AF_INET;
- memcpy(&addr4->sin_addr, ip->bytes, ip->size);
- addr4->sin_port = netorder_port;
- } else if (ip->size == 16) {
- addr.len = sizeof(struct sockaddr_in6);
- struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr.addr;
- addr6->sin6_family = AF_INET;
- memcpy(&addr6->sin6_addr, ip->bytes, ip->size);
- addr6->sin6_port = netorder_port;
- }
+ parse_server(server, &addr);
/* lb token processing */
void *user_data;
if (server->has_load_balance_token) {
- const size_t lb_token_size =
- GPR_ARRAY_SIZE(server->load_balance_token) - 1;
+ const size_t lb_token_max_length =
+ GPR_ARRAY_SIZE(server->load_balance_token);
+ const size_t lb_token_length =
+ strnlen(server->load_balance_token, lb_token_max_length);
grpc_mdstr *lb_token_mdstr = grpc_mdstr_from_buffer(
- (uint8_t *)server->load_balance_token, lb_token_size);
+ (uint8_t *)server->load_balance_token, lb_token_length);
user_data = grpc_mdelem_from_metadata_strings(GRPC_MDSTR_LB_TOKEN,
lb_token_mdstr);
} else {
@@ -427,7 +462,6 @@
++addr_idx;
}
GPR_ASSERT(addr_idx == num_valid);
-
return lb_addresses;
}
@@ -448,7 +482,7 @@
gpr_log(GPR_INFO, "Unreffing RR (0x%" PRIxPTR ")",
(intptr_t)wc_arg->rr_policy);
}
- GRPC_LB_POLICY_UNREF(exec_ctx, wc_arg->rr_policy, "glb_pick");
+ GRPC_LB_POLICY_UNREF(exec_ctx, wc_arg->rr_policy, "glb_pick_sync");
/* add the load reporting initial metadata */
initial_metadata_add_lb_token(pick_args->initial_metadata,
@@ -461,7 +495,6 @@
* pending pick list inside the RR policy (glb_policy->rr_policy).
* Eventually, wrapped_on_complete will be called, which will -among other
* things- add the LB token to the call's initial metadata */
-
return pick_done;
}
@@ -470,54 +503,70 @@
glb_lb_policy *glb_policy) {
GPR_ASSERT(serverlist != NULL && serverlist->num_servers > 0);
- if (glb_policy->addresses != NULL) {
- /* dispose of the previous version */
- grpc_lb_addresses_destroy(glb_policy->addresses);
- }
- glb_policy->addresses = process_serverlist(serverlist);
-
grpc_lb_policy_args args;
memset(&args, 0, sizeof(args));
args.client_channel_factory = glb_policy->cc_factory;
+ grpc_lb_addresses *addresses = process_serverlist(serverlist);
// Replace the LB addresses in the channel args that we pass down to
// the subchannel.
static const char *keys_to_remove[] = {GRPC_ARG_LB_ADDRESSES};
- const grpc_arg arg =
- grpc_lb_addresses_create_channel_arg(glb_policy->addresses);
+ const grpc_arg arg = grpc_lb_addresses_create_channel_arg(addresses);
args.args = grpc_channel_args_copy_and_add_and_remove(
glb_policy->args, keys_to_remove, GPR_ARRAY_SIZE(keys_to_remove), &arg,
1);
grpc_lb_policy *rr = grpc_lb_policy_create(exec_ctx, "round_robin", &args);
+ GPR_ASSERT(rr != NULL);
+ grpc_lb_addresses_destroy(addresses);
grpc_channel_args_destroy(args.args);
-
return rr;
}
+static void glb_rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error);
+/* glb_policy->rr_policy may be NULL (initial handover) */
static void rr_handover_locked(grpc_exec_ctx *exec_ctx,
glb_lb_policy *glb_policy, grpc_error *error) {
GPR_ASSERT(glb_policy->serverlist != NULL &&
glb_policy->serverlist->num_servers > 0);
- glb_policy->rr_policy =
- create_rr_locked(exec_ctx, glb_policy->serverlist, glb_policy);
if (grpc_lb_glb_trace) {
- gpr_log(GPR_INFO, "Created RR policy (0x%" PRIxPTR ")",
- (intptr_t)glb_policy->rr_policy);
+ gpr_log(GPR_INFO, "RR handover. Old RR: %p", (void *)glb_policy->rr_policy);
}
+ if (glb_policy->rr_policy != NULL) {
+ /* if we are phasing out an existing RR instance, unref it. */
+ GRPC_LB_POLICY_UNREF(exec_ctx, glb_policy->rr_policy, "rr_handover");
+ }
+
+ glb_policy->rr_policy =
+ create_rr_locked(exec_ctx, glb_policy->serverlist, glb_policy);
+ if (grpc_lb_glb_trace) {
+ gpr_log(GPR_INFO, "Created RR policy (%p)", (void *)glb_policy->rr_policy);
+ }
+
GPR_ASSERT(glb_policy->rr_policy != NULL);
grpc_pollset_set_add_pollset_set(exec_ctx,
glb_policy->rr_policy->interested_parties,
glb_policy->base.interested_parties);
- glb_policy->rr_connectivity->state = grpc_lb_policy_check_connectivity(
+
+ rr_connectivity_data *rr_connectivity =
+ gpr_malloc(sizeof(rr_connectivity_data));
+ memset(rr_connectivity, 0, sizeof(rr_connectivity_data));
+ grpc_closure_init(&rr_connectivity->on_change, glb_rr_connectivity_changed,
+ rr_connectivity);
+ rr_connectivity->glb_policy = glb_policy;
+ rr_connectivity->state = grpc_lb_policy_check_connectivity(
exec_ctx, glb_policy->rr_policy, &error);
- grpc_lb_policy_notify_on_state_change(
- exec_ctx, glb_policy->rr_policy, &glb_policy->rr_connectivity->state,
- &glb_policy->rr_connectivity->on_change);
+
grpc_connectivity_state_set(exec_ctx, &glb_policy->state_tracker,
- glb_policy->rr_connectivity->state,
- GRPC_ERROR_REF(error), "rr_handover");
+ rr_connectivity->state, GRPC_ERROR_REF(error),
+ "rr_handover");
+ /* subscribe */
+ GRPC_LB_POLICY_WEAK_REF(&glb_policy->base, "rr_connectivity_cb");
+ grpc_lb_policy_notify_on_state_change(exec_ctx, glb_policy->rr_policy,
+ &rr_connectivity->state,
+ &rr_connectivity->on_change);
grpc_lb_policy_exit_idle(exec_ctx, glb_policy->rr_policy);
/* flush pending ops */
@@ -551,35 +600,27 @@
static void glb_rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg,
grpc_error *error) {
+ /* If shutdown or error free the arg. Rely on the rest of the code to set the
+ * right grpclb status. */
rr_connectivity_data *rr_conn_data = arg;
glb_lb_policy *glb_policy = rr_conn_data->glb_policy;
- if (rr_conn_data->state == GRPC_CHANNEL_SHUTDOWN) {
- if (glb_policy->serverlist != NULL) {
- /* a RR policy is shutting down but there's a serverlist available ->
- * perform a handover */
- gpr_mu_lock(&glb_policy->mu);
- rr_handover_locked(exec_ctx, glb_policy, error);
- gpr_mu_unlock(&glb_policy->mu);
- } else {
- /* shutting down and no new serverlist available. Bail out. */
- gpr_free(rr_conn_data);
- }
+ if (rr_conn_data->state != GRPC_CHANNEL_SHUTDOWN &&
+ !glb_policy->shutting_down) {
+ gpr_mu_lock(&glb_policy->mu);
+ /* RR not shutting down. Mimic the RR's policy state */
+ grpc_connectivity_state_set(exec_ctx, &glb_policy->state_tracker,
+ rr_conn_data->state, GRPC_ERROR_REF(error),
+ "rr_connectivity_cb");
+ /* resubscribe. Reuse the "rr_connectivity_cb" weak ref. */
+ grpc_lb_policy_notify_on_state_change(exec_ctx, glb_policy->rr_policy,
+ &rr_conn_data->state,
+ &rr_conn_data->on_change);
+ gpr_mu_unlock(&glb_policy->mu);
} else {
- if (error == GRPC_ERROR_NONE) {
- gpr_mu_lock(&glb_policy->mu);
- /* RR not shutting down. Mimic the RR's policy state */
- grpc_connectivity_state_set(exec_ctx, &glb_policy->state_tracker,
- rr_conn_data->state, GRPC_ERROR_REF(error),
- "glb_rr_connectivity_changed");
- /* resubscribe */
- grpc_lb_policy_notify_on_state_change(exec_ctx, glb_policy->rr_policy,
- &rr_conn_data->state,
- &rr_conn_data->on_change);
- gpr_mu_unlock(&glb_policy->mu);
- } else { /* error */
- gpr_free(rr_conn_data);
- }
+ GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base,
+ "rr_connectivity_cb");
+ gpr_free(rr_conn_data);
}
}
@@ -682,18 +723,11 @@
return NULL;
}
- rr_connectivity_data *rr_connectivity =
- gpr_malloc(sizeof(rr_connectivity_data));
- memset(rr_connectivity, 0, sizeof(rr_connectivity_data));
- grpc_closure_init(&rr_connectivity->on_change, glb_rr_connectivity_changed,
- rr_connectivity);
- rr_connectivity->glb_policy = glb_policy;
- glb_policy->rr_connectivity = rr_connectivity;
-
grpc_lb_policy_init(&glb_policy->base, &glb_lb_policy_vtable);
gpr_mu_init(&glb_policy->mu);
grpc_connectivity_state_init(&glb_policy->state_tracker, GRPC_CHANNEL_IDLE,
"grpclb");
+
return &glb_policy->base;
}
@@ -710,14 +744,13 @@
grpc_grpclb_destroy_serverlist(glb_policy->serverlist);
}
gpr_mu_destroy(&glb_policy->mu);
- grpc_lb_addresses_destroy(glb_policy->addresses);
gpr_free(glb_policy);
}
-static void lb_client_data_destroy(struct lb_client_data *lb_client);
static void glb_shutdown(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) {
glb_lb_policy *glb_policy = (glb_lb_policy *)pol;
gpr_mu_lock(&glb_policy->mu);
+ glb_policy->shutting_down = true;
pending_pick *pp = glb_policy->pending_picks;
glb_policy->pending_picks = NULL;
@@ -741,15 +774,16 @@
}
if (glb_policy->rr_policy) {
- /* unsubscribe */
- grpc_lb_policy_notify_on_state_change(
- exec_ctx, glb_policy->rr_policy, NULL,
- &glb_policy->rr_connectivity->on_change);
GRPC_LB_POLICY_UNREF(exec_ctx, glb_policy->rr_policy, "glb_shutdown");
}
- lb_client_data_destroy(glb_policy->lb_client);
- glb_policy->lb_client = NULL;
+ if (glb_policy->started_picking) {
+ if (glb_policy->lb_call != NULL) {
+ grpc_call_cancel(glb_policy->lb_call, NULL);
+ /* lb_on_server_status_received will pick up the cancellation and clean up
+ */
+ }
+ }
grpc_connectivity_state_set(
exec_ctx, &glb_policy->state_tracker, GRPC_CHANNEL_SHUTDOWN,
@@ -780,17 +814,12 @@
GRPC_ERROR_UNREF(error);
}
-static grpc_call *lb_client_data_get_call(struct lb_client_data *lb_client);
static void glb_cancel_picks(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol,
uint32_t initial_metadata_flags_mask,
uint32_t initial_metadata_flags_eq,
grpc_error *error) {
glb_lb_policy *glb_policy = (glb_lb_policy *)pol;
gpr_mu_lock(&glb_policy->mu);
- if (glb_policy->lb_client != NULL) {
- /* cancel the call to the load balancer service, if any */
- grpc_call_cancel(lb_client_data_get_call(glb_policy->lb_client), NULL);
- }
pending_pick *pp = glb_policy->pending_picks;
glb_policy->pending_picks = NULL;
while (pp != NULL) {
@@ -810,18 +839,20 @@
GRPC_ERROR_UNREF(error);
}
-static void query_for_backends(grpc_exec_ctx *exec_ctx,
- glb_lb_policy *glb_policy);
-static void start_picking(grpc_exec_ctx *exec_ctx, glb_lb_policy *glb_policy) {
+static void query_for_backends_locked(grpc_exec_ctx *exec_ctx,
+ glb_lb_policy *glb_policy);
+static void start_picking_locked(grpc_exec_ctx *exec_ctx,
+ glb_lb_policy *glb_policy) {
glb_policy->started_picking = true;
- query_for_backends(exec_ctx, glb_policy);
+ gpr_backoff_reset(&glb_policy->lb_call_backoff_state);
+ query_for_backends_locked(exec_ctx, glb_policy);
}
static void glb_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) {
glb_lb_policy *glb_policy = (glb_lb_policy *)pol;
gpr_mu_lock(&glb_policy->mu);
if (!glb_policy->started_picking) {
- start_picking(exec_ctx, glb_policy);
+ start_picking_locked(exec_ctx, glb_policy);
}
gpr_mu_unlock(&glb_policy->mu);
}
@@ -847,8 +878,8 @@
if (glb_policy->rr_policy != NULL) {
if (grpc_lb_glb_trace) {
- gpr_log(GPR_INFO, "about to PICK from 0x%" PRIxPTR "",
- (intptr_t)glb_policy->rr_policy);
+ gpr_log(GPR_INFO, "grpclb %p about to PICK from RR %p",
+ (void *)glb_policy, (void *)glb_policy->rr_policy);
}
GRPC_LB_POLICY_REF(glb_policy->rr_policy, "glb_pick");
@@ -865,11 +896,17 @@
pick_done = pick_from_internal_rr_locked(exec_ctx, glb_policy->rr_policy,
pick_args, target, wc_arg);
} else {
+ if (grpc_lb_glb_trace) {
+ gpr_log(GPR_DEBUG,
+ "No RR policy in grpclb instance %p. Adding to grpclb's pending "
+ "picks",
+ (void *)(glb_policy));
+ }
add_pending_pick(&glb_policy->pending_picks, pick_args, target,
on_complete);
if (!glb_policy->started_picking) {
- start_picking(exec_ctx, glb_policy);
+ start_picking_locked(exec_ctx, glb_policy);
}
pick_done = false;
}
@@ -898,7 +935,7 @@
} else {
add_pending_ping(&glb_policy->pending_pings, closure);
if (!glb_policy->started_picking) {
- start_picking(exec_ctx, glb_policy);
+ start_picking_locked(exec_ctx, glb_policy);
}
}
gpr_mu_unlock(&glb_policy->mu);
@@ -916,250 +953,182 @@
gpr_mu_unlock(&glb_policy->mu);
}
-/*
- * lb_client_data
- *
- * Used internally for the client call to the LB */
-typedef struct lb_client_data {
- gpr_mu mu;
-
- /* called once initial metadata's been sent */
- grpc_closure md_sent;
-
- /* called once the LoadBalanceRequest has been sent to the LB server. See
- * src/proto/grpc/.../load_balancer.proto */
- grpc_closure req_sent;
-
- /* A response from the LB server has been received (or error). Process it */
- grpc_closure res_rcvd;
-
- /* After the client has sent a close to the LB server */
- grpc_closure close_sent;
-
- /* ... and the status from the LB server has been received */
- grpc_closure srv_status_rcvd;
-
- grpc_call *lb_call; /* streaming call to the LB server, */
- gpr_timespec deadline; /* for the streaming call to the LB server */
-
- grpc_metadata_array initial_metadata_recv; /* initial MD from LB server */
- grpc_metadata_array trailing_metadata_recv; /* trailing MD from LB server */
-
- /* what's being sent to the LB server. Note that its value may vary if the LB
- * server indicates a redirect. */
- grpc_byte_buffer *request_payload;
-
- /* response from the LB server, if any. Processed in res_recv_cb() */
- grpc_byte_buffer *response_payload;
-
- /* the call's status and status detailset in srv_status_rcvd_cb() */
- grpc_status_code status;
- char *status_details;
- size_t status_details_capacity;
-
- /* pointer back to the enclosing policy */
- glb_lb_policy *glb_policy;
-} lb_client_data;
-
-static void md_sent_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error);
-static void req_sent_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error);
-static void res_recv_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error);
-static void close_sent_cb(grpc_exec_ctx *exec_ctx, void *arg,
- grpc_error *error);
-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) {
+static void lb_on_server_status_received(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error);
+static void lb_on_response_received(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error);
+static void lb_call_init(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));
-
- gpr_mu_init(&lb_client->mu);
- grpc_closure_init(&lb_client->md_sent, md_sent_cb, lb_client);
-
- grpc_closure_init(&lb_client->req_sent, req_sent_cb, lb_client);
- grpc_closure_init(&lb_client->res_rcvd, res_recv_cb, lb_client);
- grpc_closure_init(&lb_client->close_sent, close_sent_cb, lb_client);
- grpc_closure_init(&lb_client->srv_status_rcvd, srv_status_rcvd_cb, lb_client);
-
- lb_client->deadline = glb_policy->deadline;
-
/* Note the following LB call progresses every time there's activity in \a
* glb_policy->base.interested_parties, which is comprised of the polling
* entities from \a client_channel. */
- lb_client->lb_call = grpc_channel_create_pollset_set_call(
+ glb_policy->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", glb_policy->server_name,
- lb_client->deadline, NULL);
+ glb_policy->deadline, NULL);
- grpc_metadata_array_init(&lb_client->initial_metadata_recv);
- grpc_metadata_array_init(&lb_client->trailing_metadata_recv);
+ grpc_metadata_array_init(&glb_policy->lb_initial_metadata_recv);
+ grpc_metadata_array_init(&glb_policy->lb_trailing_metadata_recv);
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 =
+ glb_policy->lb_request_payload =
grpc_raw_byte_buffer_create(&request_payload_slice, 1);
gpr_slice_unref(request_payload_slice);
grpc_grpclb_request_destroy(request);
- lb_client->status_details = NULL;
- lb_client->status_details_capacity = 0;
- lb_client->glb_policy = glb_policy;
- return lb_client;
+ glb_policy->lb_call_status_details = NULL;
+ glb_policy->lb_call_status_details_capacity = 0;
+
+ grpc_closure_init(&glb_policy->lb_on_server_status_received,
+ lb_on_server_status_received, glb_policy);
+ grpc_closure_init(&glb_policy->lb_on_response_received,
+ lb_on_response_received, glb_policy);
+
+ gpr_backoff_init(&glb_policy->lb_call_backoff_state, BACKOFF_MULTIPLIER,
+ BACKOFF_JITTER, BACKOFF_MIN_SECONDS * 1000,
+ BACKOFF_MAX_SECONDS * 1000);
}
-static void lb_client_data_destroy(lb_client_data *lb_client) {
- grpc_call_destroy(lb_client->lb_call);
- grpc_metadata_array_destroy(&lb_client->initial_metadata_recv);
- grpc_metadata_array_destroy(&lb_client->trailing_metadata_recv);
+static void lb_call_destroy(glb_lb_policy *glb_policy) {
+ GPR_ASSERT(glb_policy->lb_call != NULL);
+ grpc_call_destroy(glb_policy->lb_call);
+ glb_policy->lb_call = NULL;
- grpc_byte_buffer_destroy(lb_client->request_payload);
+ grpc_metadata_array_destroy(&glb_policy->lb_initial_metadata_recv);
+ grpc_metadata_array_destroy(&glb_policy->lb_trailing_metadata_recv);
- gpr_free(lb_client->status_details);
- gpr_mu_destroy(&lb_client->mu);
- gpr_free(lb_client);
-}
-static grpc_call *lb_client_data_get_call(lb_client_data *lb_client) {
- return lb_client->lb_call;
+ grpc_byte_buffer_destroy(glb_policy->lb_request_payload);
+ gpr_free(glb_policy->lb_call_status_details);
}
/*
* Auxiliary functions and LB client callbacks.
*/
-static void query_for_backends(grpc_exec_ctx *exec_ctx,
- glb_lb_policy *glb_policy) {
+static void query_for_backends_locked(grpc_exec_ctx *exec_ctx,
+ glb_lb_policy *glb_policy) {
GPR_ASSERT(glb_policy->lb_channel != NULL);
+ lb_call_init(glb_policy);
- glb_policy->lb_client = lb_client_data_create(glb_policy);
+ if (grpc_lb_glb_trace) {
+ gpr_log(GPR_INFO, "Query for backends (grpclb: %p, lb_call: %p)",
+ (void *)glb_policy, (void *)glb_policy->lb_call);
+ }
+ GPR_ASSERT(glb_policy->lb_call != NULL);
+
grpc_call_error call_error;
- grpc_op ops[1];
+ grpc_op ops[4];
memset(ops, 0, sizeof(ops));
+
grpc_op *op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
op->flags = 0;
op->reserved = NULL;
op++;
+
+ op->op = GRPC_OP_RECV_INITIAL_METADATA;
+ op->data.recv_initial_metadata = &glb_policy->lb_initial_metadata_recv;
+ op->flags = 0;
+ op->reserved = NULL;
+ op++;
+
+ GPR_ASSERT(glb_policy->lb_request_payload != NULL);
+ op->op = GRPC_OP_SEND_MESSAGE;
+ op->data.send_message = glb_policy->lb_request_payload;
+ op->flags = 0;
+ op->reserved = NULL;
+ op++;
+
+ op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
+ op->data.recv_status_on_client.trailing_metadata =
+ &glb_policy->lb_trailing_metadata_recv;
+ op->data.recv_status_on_client.status = &glb_policy->lb_call_status;
+ op->data.recv_status_on_client.status_details =
+ &glb_policy->lb_call_status_details;
+ op->data.recv_status_on_client.status_details_capacity =
+ &glb_policy->lb_call_status_details_capacity;
+ op->flags = 0;
+ op->reserved = NULL;
+ op++;
+ /* take a weak ref (won't prevent calling of \a glb_shutdown if the strong ref
+ * count goes to zero) to be unref'd in lb_on_server_status_received */
+ GRPC_LB_POLICY_WEAK_REF(&glb_policy->base, "lb_on_server_status_received");
call_error = grpc_call_start_batch_and_execute(
- exec_ctx, glb_policy->lb_client->lb_call, ops, (size_t)(op - ops),
- &glb_policy->lb_client->md_sent);
+ exec_ctx, glb_policy->lb_call, ops, (size_t)(op - ops),
+ &glb_policy->lb_on_server_status_received);
GPR_ASSERT(GRPC_CALL_OK == call_error);
op = ops;
- op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
- op->data.recv_status_on_client.trailing_metadata =
- &glb_policy->lb_client->trailing_metadata_recv;
- op->data.recv_status_on_client.status = &glb_policy->lb_client->status;
- op->data.recv_status_on_client.status_details =
- &glb_policy->lb_client->status_details;
- op->data.recv_status_on_client.status_details_capacity =
- &glb_policy->lb_client->status_details_capacity;
- op->flags = 0;
- op->reserved = NULL;
- op++;
- call_error = grpc_call_start_batch_and_execute(
- exec_ctx, glb_policy->lb_client->lb_call, ops, (size_t)(op - ops),
- &glb_policy->lb_client->srv_status_rcvd);
- GPR_ASSERT(GRPC_CALL_OK == call_error);
-}
-
-static void md_sent_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
- lb_client_data *lb_client = arg;
- GPR_ASSERT(lb_client->lb_call);
- grpc_op ops[1];
- memset(ops, 0, sizeof(ops));
- grpc_op *op = ops;
-
- op->op = GRPC_OP_SEND_MESSAGE;
- op->data.send_message = lb_client->request_payload;
- op->flags = 0;
- op->reserved = NULL;
- op++;
- grpc_call_error call_error = grpc_call_start_batch_and_execute(
- exec_ctx, lb_client->lb_call, ops, (size_t)(op - ops),
- &lb_client->req_sent);
- GPR_ASSERT(GRPC_CALL_OK == call_error);
-}
-
-static void req_sent_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
- lb_client_data *lb_client = arg;
- GPR_ASSERT(lb_client->lb_call);
-
- grpc_op ops[2];
- memset(ops, 0, sizeof(ops));
- grpc_op *op = ops;
-
- op->op = GRPC_OP_RECV_INITIAL_METADATA;
- op->data.recv_initial_metadata = &lb_client->initial_metadata_recv;
- op->flags = 0;
- op->reserved = NULL;
- op++;
-
op->op = GRPC_OP_RECV_MESSAGE;
- op->data.recv_message = &lb_client->response_payload;
+ op->data.recv_message = &glb_policy->lb_response_payload;
op->flags = 0;
op->reserved = NULL;
op++;
- grpc_call_error call_error = grpc_call_start_batch_and_execute(
- exec_ctx, lb_client->lb_call, ops, (size_t)(op - ops),
- &lb_client->res_rcvd);
+ /* take another weak ref to be unref'd in lb_on_response_received */
+ GRPC_LB_POLICY_WEAK_REF(&glb_policy->base, "lb_on_response_received");
+ call_error = grpc_call_start_batch_and_execute(
+ exec_ctx, glb_policy->lb_call, ops, (size_t)(op - ops),
+ &glb_policy->lb_on_response_received);
GPR_ASSERT(GRPC_CALL_OK == call_error);
}
-static void res_recv_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
- lb_client_data *lb_client = arg;
+static void lb_on_response_received(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ glb_lb_policy *glb_policy = arg;
+
grpc_op ops[2];
memset(ops, 0, sizeof(ops));
grpc_op *op = ops;
- if (lb_client->response_payload != NULL) {
+ if (glb_policy->lb_response_payload != NULL) {
+ gpr_backoff_reset(&glb_policy->lb_call_backoff_state);
/* Received data from the LB server. Look inside
- * lb_client->response_payload, for a serverlist. */
+ * glb_policy->lb_response_payload, for a serverlist. */
grpc_byte_buffer_reader bbr;
- grpc_byte_buffer_reader_init(&bbr, lb_client->response_payload);
+ grpc_byte_buffer_reader_init(&bbr, glb_policy->lb_response_payload);
gpr_slice response_slice = grpc_byte_buffer_reader_readall(&bbr);
- grpc_byte_buffer_destroy(lb_client->response_payload);
+ grpc_byte_buffer_destroy(glb_policy->lb_response_payload);
grpc_grpclb_serverlist *serverlist =
grpc_grpclb_response_parse_serverlist(response_slice);
if (serverlist != NULL) {
+ GPR_ASSERT(glb_policy->lb_call != NULL);
gpr_slice_unref(response_slice);
if (grpc_lb_glb_trace) {
gpr_log(GPR_INFO, "Serverlist with %lu servers received",
(unsigned long)serverlist->num_servers);
+ for (size_t i = 0; i < serverlist->num_servers; ++i) {
+ grpc_resolved_address addr;
+ parse_server(serverlist->servers[i], &addr);
+ char *ipport;
+ grpc_sockaddr_to_string(&ipport, &addr, false);
+ gpr_log(GPR_INFO, "Serverlist[%lu]: %s", (unsigned long)i, ipport);
+ gpr_free(ipport);
+ }
}
/* update serverlist */
if (serverlist->num_servers > 0) {
- gpr_mu_lock(&lb_client->glb_policy->mu);
- if (grpc_grpclb_serverlist_equals(lb_client->glb_policy->serverlist,
- serverlist)) {
+ gpr_mu_lock(&glb_policy->mu);
+ if (grpc_grpclb_serverlist_equals(glb_policy->serverlist, serverlist)) {
if (grpc_lb_glb_trace) {
gpr_log(GPR_INFO,
"Incoming server list identical to current, ignoring.");
}
} else { /* new serverlist */
- if (lb_client->glb_policy->serverlist != NULL) {
+ if (glb_policy->serverlist != NULL) {
/* dispose of the old serverlist */
- grpc_grpclb_destroy_serverlist(lb_client->glb_policy->serverlist);
+ grpc_grpclb_destroy_serverlist(glb_policy->serverlist);
}
/* and update the copy in the glb_lb_policy instance */
- lb_client->glb_policy->serverlist = serverlist;
+ glb_policy->serverlist = serverlist;
+
+ rr_handover_locked(exec_ctx, glb_policy, error);
}
- if (lb_client->glb_policy->rr_policy == NULL) {
- /* initial "handover", in this case from a null RR policy, meaning
- * it'll just create the first RR policy instance */
- rr_handover_locked(exec_ctx, lb_client->glb_policy, error);
- } else {
- /* unref the RR policy, eventually leading to its substitution with a
- * new one constructed from the received serverlist (see
- * glb_rr_connectivity_changed) */
- GRPC_LB_POLICY_UNREF(exec_ctx, lb_client->glb_policy->rr_policy,
- "serverlist_received");
- }
- gpr_mu_unlock(&lb_client->glb_policy->mu);
+ gpr_mu_unlock(&glb_policy->mu);
} else {
if (grpc_lb_glb_trace) {
gpr_log(GPR_INFO,
@@ -1167,60 +1136,94 @@
"response with > 0 servers is received");
}
}
+ } else { /* serverlist == NULL */
+ gpr_log(GPR_ERROR, "Invalid LB response received: '%s'. Ignoring.",
+ gpr_dump_slice(response_slice, GPR_DUMP_ASCII | GPR_DUMP_HEX));
+ gpr_slice_unref(response_slice);
+ }
+ if (!glb_policy->shutting_down) {
/* keep listening for serverlist updates */
op->op = GRPC_OP_RECV_MESSAGE;
- op->data.recv_message = &lb_client->response_payload;
+ op->data.recv_message = &glb_policy->lb_response_payload;
op->flags = 0;
op->reserved = NULL;
op++;
+ /* reuse the "lb_on_response_received" weak ref taken in
+ * query_for_backends_locked() */
const grpc_call_error call_error = grpc_call_start_batch_and_execute(
- exec_ctx, lb_client->lb_call, ops, (size_t)(op - ops),
- &lb_client->res_rcvd); /* loop */
+ exec_ctx, glb_policy->lb_call, ops, (size_t)(op - ops),
+ &glb_policy->lb_on_response_received); /* loop */
GPR_ASSERT(GRPC_CALL_OK == call_error);
- return;
}
-
- GPR_ASSERT(serverlist == NULL);
- gpr_log(GPR_ERROR, "Invalid LB response received: '%s'",
- gpr_dump_slice(response_slice, GPR_DUMP_ASCII));
- gpr_slice_unref(response_slice);
-
- /* Disconnect from server returning invalid response. */
- op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
- op->flags = 0;
- op->reserved = NULL;
- op++;
- grpc_call_error call_error = grpc_call_start_batch_and_execute(
- exec_ctx, lb_client->lb_call, ops, (size_t)(op - ops),
- &lb_client->close_sent);
- GPR_ASSERT(GRPC_CALL_OK == call_error);
- }
- /* empty payload: call cancelled by server. Cleanups happening in
- * srv_status_rcvd_cb */
-}
-
-static void close_sent_cb(grpc_exec_ctx *exec_ctx, void *arg,
- grpc_error *error) {
- if (grpc_lb_glb_trace) {
- gpr_log(GPR_INFO,
- "Close from LB client sent. Waiting from server status now");
+ } else { /* empty payload: call cancelled. */
+ /* dispose of the "lb_on_response_received" weak ref taken in
+ * query_for_backends_locked() and reused in every reception loop */
+ GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base,
+ "lb_on_response_received_empty_payload");
}
}
-static void srv_status_rcvd_cb(grpc_exec_ctx *exec_ctx, void *arg,
- grpc_error *error) {
- lb_client_data *lb_client = arg;
- if (grpc_lb_glb_trace) {
- gpr_log(GPR_INFO,
- "status from lb server received. Status = %d, Details = '%s', "
- "Capacity "
- "= %lu",
- lb_client->status, lb_client->status_details,
- (unsigned long)lb_client->status_details_capacity);
+static void lb_call_on_retry_timer(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ glb_lb_policy *glb_policy = arg;
+ gpr_mu_lock(&glb_policy->mu);
+
+ if (!glb_policy->shutting_down) {
+ if (grpc_lb_glb_trace) {
+ gpr_log(GPR_INFO, "Restaring call to LB server (grpclb %p)",
+ (void *)glb_policy);
+ }
+ GPR_ASSERT(glb_policy->lb_call == NULL);
+ query_for_backends_locked(exec_ctx, glb_policy);
}
- /* TODO(dgq): deal with stream termination properly (fire up another one?
- * fail the original call?) */
+ gpr_mu_unlock(&glb_policy->mu);
+
+ GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base,
+ "grpclb_on_retry_timer");
+}
+
+static void lb_on_server_status_received(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ glb_lb_policy *glb_policy = arg;
+ gpr_mu_lock(&glb_policy->mu);
+
+ GPR_ASSERT(glb_policy->lb_call != NULL);
+
+ if (grpc_lb_glb_trace) {
+ gpr_log(GPR_DEBUG,
+ "Status from LB server received. Status = %d, Details = '%s', "
+ "(call: %p)",
+ glb_policy->lb_call_status, glb_policy->lb_call_status_details,
+ (void *)glb_policy->lb_call);
+ }
+
+ /* We need to performe cleanups no matter what. */
+ lb_call_destroy(glb_policy);
+
+ if (!glb_policy->shutting_down) {
+ /* if we aren't shutting down, restart the LB client call after some time */
+ gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
+ gpr_timespec next_try =
+ gpr_backoff_step(&glb_policy->lb_call_backoff_state, now);
+ if (grpc_lb_glb_trace) {
+ gpr_log(GPR_DEBUG, "Connection to LB server lost (grpclb: %p)...",
+ (void *)glb_policy);
+ gpr_timespec timeout = gpr_time_sub(next_try, now);
+ if (gpr_time_cmp(timeout, gpr_time_0(timeout.clock_type)) > 0) {
+ gpr_log(GPR_DEBUG, "... retrying in %" PRId64 ".%09d seconds.",
+ timeout.tv_sec, timeout.tv_nsec);
+ } else {
+ gpr_log(GPR_DEBUG, "... retrying immediately.");
+ }
+ }
+ GRPC_LB_POLICY_WEAK_REF(&glb_policy->base, "grpclb_retry_timer");
+ grpc_timer_init(exec_ctx, &glb_policy->lb_call_retry_timer, next_try,
+ lb_call_on_retry_timer, glb_policy, now);
+ }
+ gpr_mu_unlock(&glb_policy->mu);
+ GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base,
+ "lb_on_server_status_received");
}
/* Code wiring the policy with the rest of the core */
diff --git a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h b/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
index 53fed22..e36d096 100644
--- a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
+++ b/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
@@ -77,7 +77,7 @@
bool has_port;
int32_t port;
bool has_load_balance_token;
- char load_balance_token[65];
+ char load_balance_token[50];
bool has_drop_request;
bool drop_request;
/* @@protoc_insertion_point(struct:grpc_lb_v1_Server) */
@@ -172,7 +172,7 @@
#define grpc_lb_v1_LoadBalanceResponse_size (98 + grpc_lb_v1_ServerList_size)
#define grpc_lb_v1_InitialLoadBalanceResponse_size 90
/* grpc_lb_v1_ServerList_size depends on runtime parameters */
-#define grpc_lb_v1_Server_size 98
+#define grpc_lb_v1_Server_size 83
/* Message IDs (where set with "msgid" option) */
#ifdef PB_MSGID
diff --git a/src/core/ext/lb_policy/round_robin/round_robin.c b/src/core/ext/lb_policy/round_robin/round_robin.c
index 37a9b18..b0c4617 100644
--- a/src/core/ext/lb_policy/round_robin/round_robin.c
+++ b/src/core/ext/lb_policy/round_robin/round_robin.c
@@ -120,6 +120,8 @@
grpc_connectivity_state connectivity_state;
/** the subchannel's target user data */
void *user_data;
+ /** vtable to operate over \a user_data */
+ const grpc_lb_user_data_vtable *user_data_vtable;
} subchannel_data;
struct round_robin_lb_policy {
@@ -186,9 +188,13 @@
}
if (grpc_lb_round_robin_trace) {
- gpr_log(GPR_DEBUG, "[READYLIST] ADVANCED LAST PICK. NOW AT NODE %p (SC %p)",
- (void *)p->ready_list_last_pick,
- (void *)p->ready_list_last_pick->subchannel);
+ gpr_log(GPR_DEBUG,
+ "[READYLIST, RR: %p] ADVANCED LAST PICK. NOW AT NODE %p (SC %p, "
+ "CSC %p)",
+ (void *)p, (void *)p->ready_list_last_pick,
+ (void *)p->ready_list_last_pick->subchannel,
+ (void *)grpc_subchannel_get_connected_subchannel(
+ p->ready_list_last_pick->subchannel));
}
}
@@ -255,9 +261,18 @@
static void rr_destroy(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) {
round_robin_lb_policy *p = (round_robin_lb_policy *)pol;
ready_list *elem;
+
+ if (grpc_lb_round_robin_trace) {
+ gpr_log(GPR_DEBUG, "Destroying Round Robin policy at %p", (void *)pol);
+ }
+
for (size_t i = 0; i < p->num_subchannels; i++) {
subchannel_data *sd = p->subchannels[i];
- GRPC_SUBCHANNEL_UNREF(exec_ctx, sd->subchannel, "round_robin");
+ GRPC_SUBCHANNEL_UNREF(exec_ctx, sd->subchannel, "round_robin_destroy");
+ if (sd->user_data != NULL) {
+ GPR_ASSERT(sd->user_data_vtable != NULL);
+ sd->user_data_vtable->destroy(sd->user_data);
+ }
gpr_free(sd);
}
@@ -285,6 +300,9 @@
size_t i;
gpr_mu_lock(&p->mu);
+ if (grpc_lb_round_robin_trace) {
+ gpr_log(GPR_DEBUG, "Shutting down Round Robin policy at %p", (void *)pol);
+ }
p->shutdown = 1;
while ((pp = p->pending_picks)) {
@@ -296,7 +314,7 @@
}
grpc_connectivity_state_set(
exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN,
- GRPC_ERROR_CREATE("Channel Shutdown"), "shutdown");
+ GRPC_ERROR_CREATE("Channel Shutdown"), "rr_shutdown");
for (i = 0; i < p->num_subchannels; i++) {
subchannel_data *sd = p->subchannels[i];
grpc_subchannel_notify_on_state_change(exec_ctx, sd->subchannel, NULL, NULL,
@@ -395,6 +413,11 @@
pending_pick *pp;
ready_list *selected;
gpr_mu_lock(&p->mu);
+
+ if (grpc_lb_round_robin_trace) {
+ gpr_log(GPR_INFO, "Round Robin %p trying to pick", (void *)pol);
+ }
+
if ((selected = peek_next_connected_locked(p))) {
/* readily available, report right away */
*target = GRPC_CONNECTED_SUBCHANNEL_REF(
@@ -435,7 +458,6 @@
subchannel_data *sd = arg;
round_robin_lb_policy *p = sd->policy;
pending_pick *pp;
- ready_list *selected;
int unref = 0;
@@ -456,12 +478,14 @@
/* at this point we know there's at least one suitable subchannel. Go
* ahead and pick one and notify the pending suitors in
* p->pending_picks. This preemtively replicates rr_pick()'s actions. */
- selected = peek_next_connected_locked(p);
+ ready_list *selected = peek_next_connected_locked(p);
+ GPR_ASSERT(selected != NULL);
if (p->pending_picks != NULL) {
/* if the selected subchannel is going to be used for the pending
* picks, update the last picked pointer */
advance_last_picked_locked(p);
}
+
while ((pp = p->pending_picks)) {
p->pending_picks = pp->next;
@@ -653,7 +677,9 @@
sd->policy = p;
sd->index = subchannel_idx;
sd->subchannel = subchannel;
- sd->user_data = addresses->addresses[i].user_data;
+ sd->user_data_vtable = addresses->user_data_vtable;
+ sd->user_data =
+ sd->user_data_vtable->copy(addresses->addresses[i].user_data);
++subchannel_idx;
grpc_closure_init(&sd->connectivity_changed_closure,
rr_connectivity_changed, sd);
diff --git a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
index 57e1a8e..d0ac72a 100644
--- a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
+++ b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
@@ -347,7 +347,7 @@
&exec_ctx, &f->base, target, GRPC_CLIENT_CHANNEL_TYPE_REGULAR, new_args);
// Clean up.
GRPC_SECURITY_CONNECTOR_UNREF(&f->security_connector->base,
- "client_channel_factory_create_channel");
+ "secure_client_channel_factory_create_channel");
grpc_channel_args_destroy(new_args);
grpc_client_channel_factory_unref(&exec_ctx, &f->base);
grpc_exec_ctx_finish(&exec_ctx);
diff --git a/src/core/lib/security/transport/security_connector.c b/src/core/lib/security/transport/security_connector.c
index 0eca46e..ebf72a3 100644
--- a/src/core/lib/security/transport/security_connector.c
+++ b/src/core/lib/security/transport/security_connector.c
@@ -210,11 +210,11 @@
}
static void connector_pointer_arg_destroy(void *p) {
- GRPC_SECURITY_CONNECTOR_UNREF(p, "connector_pointer_arg");
+ GRPC_SECURITY_CONNECTOR_UNREF(p, "connector_pointer_arg_destroy");
}
static void *connector_pointer_arg_copy(void *p) {
- return GRPC_SECURITY_CONNECTOR_REF(p, "connector_pointer_arg");
+ return GRPC_SECURITY_CONNECTOR_REF(p, "connector_pointer_arg_copy");
}
static int connector_pointer_cmp(void *a, void *b) { return GPR_ICMP(a, b); }
diff --git a/src/cpp/common/channel_arguments.cc b/src/cpp/common/channel_arguments.cc
index d136d49..c6cad8e 100644
--- a/src/cpp/common/channel_arguments.cc
+++ b/src/cpp/common/channel_arguments.cc
@@ -121,6 +121,11 @@
grpc_resource_quota_arg_vtable());
}
+void ChannelArguments::SetLoadBalancingPolicyName(
+ const grpc::string& lb_policy_name) {
+ SetString(GRPC_ARG_LB_POLICY_NAME, lb_policy_name);
+}
+
void ChannelArguments::SetInt(const grpc::string& key, int value) {
grpc_arg arg;
arg.type = GRPC_ARG_INTEGER;
diff --git a/src/proto/grpc/lb/v1/load_balancer.options b/src/proto/grpc/lb/v1/load_balancer.options
index a9398d5..7fbd44b 100644
--- a/src/proto/grpc/lb/v1/load_balancer.options
+++ b/src/proto/grpc/lb/v1/load_balancer.options
@@ -1,6 +1,5 @@
grpc.lb.v1.InitialLoadBalanceRequest.name max_size:128
-grpc.lb.v1.InitialLoadBalanceResponse.client_config max_size:64
grpc.lb.v1.InitialLoadBalanceResponse.load_balancer_delegate max_size:64
grpc.lb.v1.Server.ip_address max_size:16
-grpc.lb.v1.Server.load_balance_token max_size:65
+grpc.lb.v1.Server.load_balance_token max_size:50
load_balancer.proto no_unions:true
diff --git a/src/proto/grpc/lb/v1/load_balancer.proto b/src/proto/grpc/lb/v1/load_balancer.proto
index 210fba1..44a5150 100644
--- a/src/proto/grpc/lb/v1/load_balancer.proto
+++ b/src/proto/grpc/lb/v1/load_balancer.proto
@@ -63,7 +63,8 @@
}
message InitialLoadBalanceRequest {
- // Name of load balanced service (IE, service.grpc.gslb.google.com)
+ // Name of load balanced service (IE, service.grpc.gslb.google.com). Its
+ // length should be less than 256 bytes.
string name = 1;
}
@@ -95,7 +96,8 @@
// This is an application layer redirect that indicates the client should use
// the specified server for load balancing. When this field is non-empty in
// the response, the client should open a separate connection to the
- // load_balancer_delegate and call the BalanceLoad method.
+ // load_balancer_delegate and call the BalanceLoad method. Its length should
+ // be less than 64 bytes.
string load_balancer_delegate = 1;
// This interval defines how often the client should send the client stats
@@ -130,6 +132,8 @@
// frontend requests for that pick must include the token in its initial
// metadata. The token is used by the backend to verify the request and to
// allow the backend to report load to the gRPC LB system.
+ //
+ // Its length is variable but less than 50 bytes.
string load_balance_token = 3;
// Indicates whether this particular request should be dropped by the client
diff --git a/test/core/end2end/tests/resource_quota_server.c b/test/core/end2end/tests/resource_quota_server.c
index fbd4986..47c5ed6 100644
--- a/test/core/end2end/tests/resource_quota_server.c
+++ b/test/core/end2end/tests/resource_quota_server.c
@@ -137,17 +137,22 @@
* will be verified on completion. */
gpr_slice request_payload_slice = generate_random_slice();
- grpc_call *client_calls[NUM_CALLS];
- grpc_call *server_calls[NUM_CALLS];
- grpc_metadata_array initial_metadata_recv[NUM_CALLS];
- grpc_metadata_array trailing_metadata_recv[NUM_CALLS];
- grpc_metadata_array request_metadata_recv[NUM_CALLS];
- grpc_call_details call_details[NUM_CALLS];
- grpc_status_code status[NUM_CALLS];
- char *details[NUM_CALLS];
- size_t details_capacity[NUM_CALLS];
- grpc_byte_buffer *request_payload_recv[NUM_CALLS];
- int was_cancelled[NUM_CALLS];
+ grpc_call **client_calls = malloc(sizeof(grpc_call *) * NUM_CALLS);
+ grpc_call **server_calls = malloc(sizeof(grpc_call *) * NUM_CALLS);
+ grpc_metadata_array *initial_metadata_recv =
+ malloc(sizeof(grpc_metadata_array) * NUM_CALLS);
+ grpc_metadata_array *trailing_metadata_recv =
+ malloc(sizeof(grpc_metadata_array) * NUM_CALLS);
+ grpc_metadata_array *request_metadata_recv =
+ malloc(sizeof(grpc_metadata_array) * NUM_CALLS);
+ grpc_call_details *call_details =
+ malloc(sizeof(grpc_call_details) * NUM_CALLS);
+ grpc_status_code *status = malloc(sizeof(grpc_status_code) * NUM_CALLS);
+ char **details = malloc(sizeof(char *) * NUM_CALLS);
+ size_t *details_capacity = malloc(sizeof(size_t) * NUM_CALLS);
+ grpc_byte_buffer **request_payload_recv =
+ malloc(sizeof(grpc_byte_buffer *) * NUM_CALLS);
+ int *was_cancelled = malloc(sizeof(int) * NUM_CALLS);
grpc_call_error error;
int pending_client_calls = 0;
int pending_server_start_calls = 0;
@@ -356,6 +361,18 @@
gpr_slice_unref(request_payload_slice);
grpc_resource_quota_unref(resource_quota);
+ free(client_calls);
+ free(server_calls);
+ free(initial_metadata_recv);
+ free(trailing_metadata_recv);
+ free(request_metadata_recv);
+ free(call_details);
+ free(status);
+ free(details);
+ free(details_capacity);
+ free(request_payload_recv);
+ free(was_cancelled);
+
end_test(&f);
config.tear_down_data(&f);
}
diff --git a/test/cpp/end2end/round_robin_end2end_test.cc b/test/cpp/end2end/round_robin_end2end_test.cc
new file mode 100644
index 0000000..796b01c
--- /dev/null
+++ b/test/cpp/end2end/round_robin_end2end_test.cc
@@ -0,0 +1,211 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <memory>
+#include <mutex>
+#include <thread>
+
+#include <grpc++/channel.h>
+#include <grpc++/client_context.h>
+#include <grpc++/create_channel.h>
+#include <grpc++/server.h>
+#include <grpc++/server_builder.h>
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/thd.h>
+#include <grpc/support/time.h>
+#include <gtest/gtest.h>
+
+#include "src/proto/grpc/testing/echo.grpc.pb.h"
+#include "test/core/util/port.h"
+#include "test/core/util/test_config.h"
+#include "test/cpp/end2end/test_service_impl.h"
+
+using grpc::testing::EchoRequest;
+using grpc::testing::EchoResponse;
+using std::chrono::system_clock;
+
+namespace grpc {
+namespace testing {
+namespace {
+
+// Subclass of TestServiceImpl that increments a request counter for
+// every call to the Echo RPC.
+class MyTestServiceImpl : public TestServiceImpl {
+ public:
+ MyTestServiceImpl() : request_count_(0) {}
+
+ Status Echo(ServerContext* context, const EchoRequest* request,
+ EchoResponse* response) GRPC_OVERRIDE {
+ {
+ unique_lock<mutex> lock(mu_);
+ ++request_count_;
+ }
+ return TestServiceImpl::Echo(context, request, response);
+ }
+
+ int request_count() {
+ unique_lock<mutex> lock(mu_);
+ return request_count_;
+ }
+
+ private:
+ mutex mu_;
+ int request_count_;
+};
+
+class RoundRobinEnd2endTest : public ::testing::Test {
+ protected:
+ RoundRobinEnd2endTest() : server_host_("localhost") {}
+
+ void StartServers(int num_servers) {
+ for (int i = 0; i < num_servers; ++i) {
+ servers_.emplace_back(new ServerData(server_host_));
+ }
+ }
+
+ void TearDown() GRPC_OVERRIDE {
+ for (size_t i = 0; i < servers_.size(); ++i) {
+ servers_[i]->Shutdown();
+ }
+ }
+
+ void ResetStub(bool round_robin) {
+ ChannelArguments args;
+ if (round_robin) args.SetLoadBalancingPolicyName("round_robin");
+ std::ostringstream uri;
+ uri << "ipv4:///";
+ for (size_t i = 0; i < servers_.size() - 1; ++i) {
+ uri << "127.0.0.1:" << servers_[i]->port_ << ",";
+ }
+ uri << "127.0.0.1:" << servers_[servers_.size() - 1]->port_;
+ std::shared_ptr<Channel> channel =
+ CreateCustomChannel(uri.str(), InsecureChannelCredentials(), args);
+ stub_ = grpc::testing::EchoTestService::NewStub(channel);
+ }
+
+ void SendRpc(int num_rpcs) {
+ EchoRequest request;
+ EchoResponse response;
+ request.set_message("Live long and prosper.");
+ for (int i = 0; i < num_rpcs; i++) {
+ ClientContext context;
+ Status status = stub_->Echo(&context, request, &response);
+ EXPECT_TRUE(status.ok());
+ EXPECT_EQ(response.message(), request.message());
+ }
+ }
+
+ struct ServerData {
+ int port_;
+ std::unique_ptr<Server> server_;
+ MyTestServiceImpl service_;
+ std::unique_ptr<std::thread> thread_;
+
+ explicit ServerData(const grpc::string& server_host) {
+ port_ = grpc_pick_unused_port_or_die();
+ gpr_log(GPR_INFO, "starting server on port %d", port_);
+ std::mutex mu;
+ std::condition_variable cond;
+ thread_.reset(new std::thread(
+ std::bind(&ServerData::Start, this, server_host, &mu, &cond)));
+ unique_lock<mutex> lock(mu);
+ cond.wait(lock);
+ gpr_log(GPR_INFO, "server startup complete");
+ }
+
+ void Start(const grpc::string& server_host, std::mutex* mu,
+ std::condition_variable* cond) {
+ std::ostringstream server_address;
+ server_address << server_host << ":" << port_;
+ ServerBuilder builder;
+ builder.AddListeningPort(server_address.str(),
+ InsecureServerCredentials());
+ builder.RegisterService(&service_);
+ server_ = builder.BuildAndStart();
+ lock_guard<mutex> lock(*mu);
+ cond->notify_one();
+ }
+
+ void Shutdown() {
+ server_->Shutdown();
+ thread_->join();
+ }
+ };
+
+ const grpc::string server_host_;
+ CompletionQueue cli_cq_;
+ std::unique_ptr<grpc::testing::EchoTestService::Stub> stub_;
+ std::vector<std::unique_ptr<ServerData>> servers_;
+};
+
+TEST_F(RoundRobinEnd2endTest, PickFirst) {
+ // Start servers and send one RPC per server.
+ const int kNumServers = 3;
+ StartServers(kNumServers);
+ ResetStub(false /* round_robin */);
+ SendRpc(kNumServers);
+ // All requests should have gone to a single server.
+ bool found = false;
+ for (size_t i = 0; i < servers_.size(); ++i) {
+ const int request_count = servers_[i]->service_.request_count();
+ if (request_count == kNumServers) {
+ found = true;
+ } else {
+ EXPECT_EQ(0, request_count);
+ }
+ }
+ EXPECT_TRUE(found);
+}
+
+TEST_F(RoundRobinEnd2endTest, RoundRobin) {
+ // Start servers and send one RPC per server.
+ const int kNumServers = 3;
+ StartServers(kNumServers);
+ ResetStub(true /* round_robin */);
+ SendRpc(kNumServers);
+ // One request should have gone to each server.
+ for (size_t i = 0; i < servers_.size(); ++i) {
+ EXPECT_EQ(1, servers_[i]->service_.request_count());
+ }
+}
+
+} // namespace
+} // namespace testing
+} // namespace grpc
+
+int main(int argc, char** argv) {
+ grpc_test_init(argc, argv);
+ ::testing::InitGoogleTest(&argc, argv);
+ return RUN_ALL_TESTS();
+}
diff --git a/test/cpp/grpclb/grpclb_test.cc b/test/cpp/grpclb/grpclb_test.cc
index b6056f9..c796e55 100644
--- a/test/cpp/grpclb/grpclb_test.cc
+++ b/test/cpp/grpclb/grpclb_test.cc
@@ -76,10 +76,22 @@
// - Send a serverlist with faulty ip:port addresses (port > 2^16, etc).
// - Test reception of invalid serverlist
// - Test pinging
-// - Test against a non-LB server. That server should return UNIMPLEMENTED and
-// the call should fail.
+// - Test against a non-LB server.
// - Random LB server closing the stream unexpectedly.
// - Test using DNS-resolvable names (localhost?)
+//
+// Findings from end to end testing to be covered here:
+// - Handling of LB servers restart, including reconnection after backing-off
+// retries.
+// - Destruction of load balanced channel (and therefore of grpclb instance)
+// while:
+// 1) the internal LB call is still active. This should work by virtue
+// of the weak reference the LB call holds. The call should be terminated as
+// part of the grpclb shutdown process.
+// 2) the retry timer is active. Again, the weak reference it holds should
+// prevent a premature call to \a glb_destroy.
+// - Restart of backend servers with no changes to serverlist. This exercises
+// the RR handover mechanism.
namespace grpc {
namespace {
@@ -144,7 +156,6 @@
// disfunctional implementation of std::to_string in gcc 4.4, which doesn't
// have a version for int but does have one for long long int.
string token_data = "token" + std::to_string((long long int)ports[i]);
- token_data.resize(64, '-');
server->set_load_balance_token(token_data);
}
const grpc::string &enc_resp = response.SerializeAsString();
@@ -333,7 +344,6 @@
// disfunctional implementation of std::to_string in gcc 4.4, which doesn't
// have a version for int but does have one for long long int.
string expected_token = "token" + std::to_string((long long int)sf->port);
- expected_token.resize(64, '-');
GPR_ASSERT(contains_metadata(&request_metadata_recv, "lb-token",
expected_token.c_str()));
diff --git a/tools/run_tests/performance/bq_upload_result.py b/tools/run_tests/performance/bq_upload_result.py
index 9b817b5..0ea23d2 100755
--- a/tools/run_tests/performance/bq_upload_result.py
+++ b/tools/run_tests/performance/bq_upload_result.py
@@ -117,10 +117,13 @@
scenario_result['latencies'] = json.dumps(scenario_result['latencies'])
for stats in scenario_result['clientStats']:
stats['latencies'] = json.dumps(stats['latencies'])
+ stats.pop('requestResults', None)
scenario_result['serverCores'] = json.dumps(scenario_result['serverCores'])
scenario_result['clientSuccess'] = json.dumps(scenario_result['clientSuccess'])
scenario_result['serverSuccess'] = json.dumps(scenario_result['serverSuccess'])
scenario_result['requestResults'] = json.dumps(scenario_result.get('requestResults', []))
+ scenario_result['summary'].pop('successfulRequestsPerSecond', None)
+ scenario_result['summary'].pop('failedRequestsPerSecond', None)
def _populate_metadata_inplace(scenario_result):
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 80242ad..9e26571 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -2995,6 +2995,25 @@
"headers": [],
"is_filegroup": false,
"language": "c++",
+ "name": "round_robin_end2end_test",
+ "src": [
+ "test/cpp/end2end/round_robin_end2end_test.cc"
+ ],
+ "third_party": false,
+ "type": "target"
+ },
+ {
+ "deps": [
+ "gpr",
+ "gpr_test_util",
+ "grpc",
+ "grpc++",
+ "grpc++_test_util",
+ "grpc_test_util"
+ ],
+ "headers": [],
+ "is_filegroup": false,
+ "language": "c++",
"name": "secure_auth_context_test",
"src": [
"test/cpp/common/secure_auth_context_test.cc"
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index 39daf85..878cba3 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -2837,6 +2837,28 @@
"flaky": false,
"gtest": true,
"language": "c++",
+ "name": "round_robin_end2end_test",
+ "platforms": [
+ "linux",
+ "mac",
+ "posix",
+ "windows"
+ ]
+ },
+ {
+ "args": [],
+ "ci_platforms": [
+ "linux",
+ "mac",
+ "posix",
+ "windows"
+ ],
+ "cpu_cost": 1.0,
+ "exclude_configs": [],
+ "exclude_iomgrs": [],
+ "flaky": false,
+ "gtest": true,
+ "language": "c++",
"name": "secure_auth_context_test",
"platforms": [
"linux",
diff --git a/vsprojects/vcxproj/test/round_robin_end2end_test/round_robin_end2end_test.vcxproj b/vsprojects/vcxproj/test/round_robin_end2end_test/round_robin_end2end_test.vcxproj
new file mode 100644
index 0000000..55e16f1
--- /dev/null
+++ b/vsprojects/vcxproj/test/round_robin_end2end_test/round_robin_end2end_test.vcxproj
@@ -0,0 +1,207 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\1.0.204.1.props')" />
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Debug|Win32">
+ <Configuration>Debug</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|x64">
+ <Configuration>Debug</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|x64">
+ <Configuration>Release</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+ <ProjectGuid>{54B15DF6-42BA-5347-C9B8-2D7F1F2921C6}</ProjectGuid>
+ <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
+ <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+ <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+ <PlatformToolset>v100</PlatformToolset>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+ <PlatformToolset>v110</PlatformToolset>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+ <PlatformToolset>v120</PlatformToolset>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
+ <PlatformToolset>v140</PlatformToolset>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+ <ConfigurationType>Application</ConfigurationType>
+ <UseDebugLibraries>true</UseDebugLibraries>
+ <CharacterSet>Unicode</CharacterSet>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+ <ConfigurationType>Application</ConfigurationType>
+ <UseDebugLibraries>false</UseDebugLibraries>
+ <WholeProgramOptimization>true</WholeProgramOptimization>
+ <CharacterSet>Unicode</CharacterSet>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ImportGroup Label="ExtensionSettings">
+ </ImportGroup>
+ <ImportGroup Label="PropertySheets">
+ <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+ <Import Project="$(SolutionDir)\..\vsprojects\cpptest.props" />
+ <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
+ <Import Project="$(SolutionDir)\..\vsprojects\openssl.props" />
+ <Import Project="$(SolutionDir)\..\vsprojects\protobuf.props" />
+ <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
+ <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
+ </ImportGroup>
+ <PropertyGroup Label="UserMacros" />
+ <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+ <TargetName>round_robin_end2end_test</TargetName>
+ <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+ <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
+ <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+ <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(Configuration)'=='Release'">
+ <TargetName>round_robin_end2end_test</TargetName>
+ <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+ <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
+ <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+ <Configuration-grpc_dependencies_openssl>Release</Configuration-grpc_dependencies_openssl>
+ </PropertyGroup>
+ <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+ <ClCompile>
+ <PrecompiledHeader>NotUsing</PrecompiledHeader>
+ <WarningLevel>Level3</WarningLevel>
+ <Optimization>Disabled</Optimization>
+ <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <SDLCheck>true</SDLCheck>
+ <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+ <TreatWarningAsError>true</TreatWarningAsError>
+ <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+ <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+ </ClCompile>
+ <Link>
+ <SubSystem>Console</SubSystem>
+ <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+ <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+ </Link>
+ </ItemDefinitionGroup>
+
+ <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+ <ClCompile>
+ <PrecompiledHeader>NotUsing</PrecompiledHeader>
+ <WarningLevel>Level3</WarningLevel>
+ <Optimization>Disabled</Optimization>
+ <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <SDLCheck>true</SDLCheck>
+ <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+ <TreatWarningAsError>true</TreatWarningAsError>
+ <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+ <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+ </ClCompile>
+ <Link>
+ <SubSystem>Console</SubSystem>
+ <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+ <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+ </Link>
+ </ItemDefinitionGroup>
+
+ <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+ <ClCompile>
+ <PrecompiledHeader>NotUsing</PrecompiledHeader>
+ <WarningLevel>Level3</WarningLevel>
+ <Optimization>MaxSpeed</Optimization>
+ <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <FunctionLevelLinking>true</FunctionLevelLinking>
+ <IntrinsicFunctions>true</IntrinsicFunctions>
+ <SDLCheck>true</SDLCheck>
+ <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+ <TreatWarningAsError>true</TreatWarningAsError>
+ <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+ <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+ </ClCompile>
+ <Link>
+ <SubSystem>Console</SubSystem>
+ <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+ <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+ <EnableCOMDATFolding>true</EnableCOMDATFolding>
+ <OptimizeReferences>true</OptimizeReferences>
+ </Link>
+ </ItemDefinitionGroup>
+
+ <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+ <ClCompile>
+ <PrecompiledHeader>NotUsing</PrecompiledHeader>
+ <WarningLevel>Level3</WarningLevel>
+ <Optimization>MaxSpeed</Optimization>
+ <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <FunctionLevelLinking>true</FunctionLevelLinking>
+ <IntrinsicFunctions>true</IntrinsicFunctions>
+ <SDLCheck>true</SDLCheck>
+ <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+ <TreatWarningAsError>true</TreatWarningAsError>
+ <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+ <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+ </ClCompile>
+ <Link>
+ <SubSystem>Console</SubSystem>
+ <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+ <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+ <EnableCOMDATFolding>true</EnableCOMDATFolding>
+ <OptimizeReferences>true</OptimizeReferences>
+ </Link>
+ </ItemDefinitionGroup>
+
+ <ItemGroup>
+ <ClCompile Include="$(SolutionDir)\..\test\cpp\end2end\round_robin_end2end_test.cc">
+ </ClCompile>
+ </ItemGroup>
+ <ItemGroup>
+ <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc++_test_util\grpc++_test_util.vcxproj">
+ <Project>{0BE77741-552A-929B-A497-4EF7ECE17A64}</Project>
+ </ProjectReference>
+ <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+ <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+ </ProjectReference>
+ <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc++\grpc++.vcxproj">
+ <Project>{C187A093-A0FE-489D-A40A-6E33DE0F9FEB}</Project>
+ </ProjectReference>
+ <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
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+ </ProjectReference>
+ <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
+ <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
+ </ProjectReference>
+ <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr\gpr.vcxproj">
+ <Project>{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}</Project>
+ </ProjectReference>
+ </ItemGroup>
+ <ItemGroup>
+ <None Include="packages.config" />
+ </ItemGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+ <ImportGroup Label="ExtensionTargets">
+ <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
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+ </ImportGroup>
+ <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+ <PropertyGroup>
+ <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+ </PropertyGroup>
+ <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" />
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+ <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" />
+ <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" />
+ </Target>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/round_robin_end2end_test/round_robin_end2end_test.vcxproj.filters b/vsprojects/vcxproj/test/round_robin_end2end_test/round_robin_end2end_test.vcxproj.filters
new file mode 100644
index 0000000..95a1499
--- /dev/null
+++ b/vsprojects/vcxproj/test/round_robin_end2end_test/round_robin_end2end_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup>
+ <ClCompile Include="$(SolutionDir)\..\test\cpp\end2end\round_robin_end2end_test.cc">
+ <Filter>test\cpp\end2end</Filter>
+ </ClCompile>
+ </ItemGroup>
+
+ <ItemGroup>
+ <Filter Include="test">
+ <UniqueIdentifier>{e151f47d-6563-5ef9-fae6-70708f9f8ee6}</UniqueIdentifier>
+ </Filter>
+ <Filter Include="test\cpp">
+ <UniqueIdentifier>{07958594-fd93-28f7-9388-c67c952701b8}</UniqueIdentifier>
+ </Filter>
+ <Filter Include="test\cpp\end2end">
+ <UniqueIdentifier>{7596a0dd-caa4-b365-a59f-f7ffef38b10d}</UniqueIdentifier>
+ </Filter>
+ </ItemGroup>
+</Project>
+