udp: Add some log when session is deleted (envoyproxy#12669)

It is very helpful for debugging. Signed-off-by: DongRyeol Cha <dr83.cha@samsung.com>
adisuissa · Aug 16, 2020 · 51551ae · 51551ae
1 parent 8c1ad4c
commit 51551ae
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/source/extensions/filters/udp/udp_proxy/udp_proxy_filter.cc b/source/extensions/filters/udp/udp_proxy/udp_proxy_filter.cc
@@ -179,6 +179,9 @@ UdpProxyFilter::ActiveSession::ActiveSession(ClusterInfo& cluster,
 }
 
 UdpProxyFilter::ActiveSession::~ActiveSession() {
+  ENVOY_LOG(debug, "deleting the session: downstream={} local={} upstream={}",
+            addresses_.peer_->asStringView(), addresses_.local_->asStringView(),
+            host_->address()->asStringView());
   cluster_.filter_.config_->stats().downstream_sess_active_.dec();
   cluster_.cluster_.info()
       ->resourceManager(Upstream::ResourcePriority::Default)