1 files changed, 9 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 7050e82121..f2bb5f3c71 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
@@ -66,6 +66,8 @@ class AresDnsResolver : public Resolver {
 
   void RequestReresolutionLocked() override;
 
+  void ResetBackoffLocked() override;
+
   void ShutdownLocked() override;
 
  private:
@@ -187,6 +189,13 @@ void AresDnsResolver::RequestReresolutionLocked() {
   }
 }
 
+void AresDnsResolver::ResetBackoffLocked() {
+  if (have_next_resolution_timer_) {
+    grpc_timer_cancel(&next_resolution_timer_);
+  }
+  backoff_.Reset();
+}
+
 void AresDnsResolver::ShutdownLocked() {
   if (have_next_resolution_timer_) {
     grpc_timer_cancel(&next_resolution_timer_);