1 files changed, 4 insertions, 0 deletions
diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc
index c63de3c509..5d297df1af 100644
--- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc
@@ -28,6 +28,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
+#include <address_sorting.h>
+
 #include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
 #include "src/core/ext/filters/client_channel/lb_policy_registry.h"
 #include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
@@ -458,6 +460,7 @@ void grpc_resolver_dns_ares_init() {
   /* TODO(zyc): Turn on c-ares based resolver by default after the address
      sorter and the CNAME support are added. */
   if (resolver_env != nullptr && gpr_stricmp(resolver_env, "ares") == 0) {
+    address_sorting_init();
     grpc_error* error = grpc_ares_init();
     if (error != GRPC_ERROR_NONE) {
       GRPC_LOG_IF_ERROR("ares_library_init() failed", error);
@@ -475,6 +478,7 @@ void grpc_resolver_dns_ares_init() {
 void grpc_resolver_dns_ares_shutdown() {
   char* resolver_env = gpr_getenv("GRPC_DNS_RESOLVER");
   if (resolver_env != nullptr && gpr_stricmp(resolver_env, "ares") == 0) {
+    address_sorting_shutdown();
     grpc_ares_cleanup();
   }
   gpr_free(resolver_env);