Add debug logs to dynamic forward proxy failure paths (#28071)

Signed-off-by: ohadvano <49730675+ohadvano@users.noreply.github.com>
envoyproxy · Jun 21, 2023 · 84d0b10 · 84d0b10
1 parent 8bc87d8
commit 84d0b10
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/source/extensions/clusters/dynamic_forward_proxy/cluster.cc b/source/extensions/clusters/dynamic_forward_proxy/cluster.cc
@@ -357,6 +357,7 @@ Cluster::LoadBalancer::chooseHost(Upstream::LoadBalancerContext* context) {
   std::string host = Common::DynamicForwardProxy::DnsHostInfo::normalizeHostForDfp(raw_host, port);
 
   if (host.empty()) {
+    ENVOY_LOG(debug, "host empty");
     return nullptr;
   }
 
@@ -368,9 +369,11 @@ Cluster::LoadBalancer::chooseHost(Upstream::LoadBalancerContext* context) {
     absl::ReaderMutexLock lock{&cluster_.host_map_lock_};
     const auto host_it = cluster_.host_map_.find(host);
     if (host_it == cluster_.host_map_.end()) {
+      ENVOY_LOG(debug, "host {} not found", host);
       return nullptr;
     } else {
       if (host_it->second.logical_host_->coarseHealth() == Upstream::Host::Health::Unhealthy) {
+        ENVOY_LOG(debug, "host {} is unhealthy", host);
         return nullptr;
       }
       host_it->second.shared_host_info_->touch();