client: log last error on subchannel connectivity change (#6109)

grpc · Mar 15, 2023 · a1e657c · a1e657c
1 parent 36fd0a4
commit a1e657c
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/clientconn.go b/clientconn.go
@@ -1113,7 +1113,11 @@ func (ac *addrConn) updateConnectivityState(s connectivity.State, lastErr error)
 		return
 	}
 	ac.state = s
-	channelz.Infof(logger, ac.channelzID, "Subchannel Connectivity change to %v", s)
+	if lastErr == nil {
+		channelz.Infof(logger, ac.channelzID, "Subchannel Connectivity change to %v", s)
+	} else {
+		channelz.Infof(logger, ac.channelzID, "Subchannel Connectivity change to %v, last error: %s", s, lastErr)
+	}
 	ac.cc.handleSubConnStateChange(ac.acbw, s, lastErr)
 }