Fixes from PR comments

packages/grpc-js/src/load-balancer-eds.ts

@@ -87,9 +87,9 @@ export class EdsLoadBalancer implements LoadBalancer {
 
   constructor(private readonly channelControlHelper: ChannelControlHelper) {
     this.childBalancer = new ChildLoadBalancerHandler({
-      createSubchannel: (subchannelAddres, subchannelArgs) =>
+      createSubchannel: (subchannelAddress, subchannelArgs) =>
         this.channelControlHelper.createSubchannel(
-          subchannelAddres,
+          subchannelAddress,
           subchannelArgs
         ),
       requestReresolution: () =>
@@ -385,10 +385,13 @@ export class EdsLoadBalancer implements LoadBalancer {
       this.isWatcherActive = true;
     }
 
-    this.clusterDropStats = this.xdsClient.addClusterDropStats(
-      lbConfig.eds.cluster,
-      lbConfig.eds.edsServiceName ?? ''
-    );
+    if (lbConfig.eds.lrsLoadReportingServerName) {
+      this.clusterDropStats = this.xdsClient.addClusterDropStats(
+        lbConfig.eds.lrsLoadReportingServerName,
+        lbConfig.eds.cluster,
+        lbConfig.eds.edsServiceName ?? ''
+      );
+    }
 
     /* If updateAddressList is called after receiving an update and the update
      * is still valid, we want to update the child config with the information

packages/grpc-js/src/xds-client.ts

@@ -791,10 +791,24 @@ export class XdsClient {
     }
   }
 
+  /**
+   * 
+   * @param lrsServer The target name of the server to send stats to. An empty
+   *     string indicates that the default LRS client should be used. Currently
+   *     only the empty string is supported here.
+   * @param clusterName 
+   * @param edsServiceName 
+   */
   addClusterDropStats(
+    lrsServer: string,
     clusterName: string,
     edsServiceName: string
   ): XdsClusterDropStats {
+    if (lrsServer !== '') {
+      return {
+        addCallDropped: category => {}
+      };
+    }
     const clusterStats = this.clusterStatsMap.getOrCreate(
       clusterName,
       edsServiceName
@@ -810,6 +824,8 @@ export class XdsClient {
   shutdown(): void {
     this.adsCall?.cancel();
     this.adsClient?.close();
+    this.lrsCall?.cancel();
+    this.lrsClient?.close();
     this.hasShutdown = true;
   }
 }