Ignore a couple of errors in the Node express benchmark

src/node/performance/benchmark_client_express.js

@@ -93,7 +93,7 @@ function BenchmarkClient(server_targets, channels, histogram_params,
 
   for (var i = 0; i < channels; i++) {
     var host_port;
-    host_port = server_targets[i % server_targets.length].split(':')
+    host_port = server_targets[i % server_targets.length].split(':');
     var new_options = _.assign({hostname: host_port[0], port: +host_port[1]}, options);
     new_options.agent = new protocol.Agent(new_options);
     this.client_options[i] = new_options;
@@ -149,25 +149,34 @@ BenchmarkClient.prototype.startClosedLoop = function(
     if (self.running) {
       self.pending_calls++;
       var start_time = process.hrtime();
-      var req = self.request(client_options, function(res) {
+      function finishCall(success) {
-        var res_data = '';
+        if (success) {
-        res.on('data', function(data) {
-          res_data += data;
-        });
-        res.on('end', function() {
-          JSON.parse(res_data);
           var time_diff = process.hrtime(start_time);
           self.histogram.add(timeDiffToNanos(time_diff));
+        }
         makeCall(client_options);
         self.pending_calls--;
         if ((!self.running) && self.pending_calls == 0) {
           self.emit('finished');
         }
+      }
+      var req = self.request(client_options, function(res) {
+        var res_data = '';
+        res.on('data', function(data) {
+          res_data += data;
+        });
+        res.on('end', function() {
+          JSON.parse(res_data);
+          finishCall(true);
         });
       });
       req.write(JSON.stringify(argument));
       req.end();
       req.on('error', function(error) {
+        if (error.code === 'ECONNRESET' || error.code === 'ETIMEDOUT') {
+          finishCall(false);
+          return;
+        }
         self.emit('error', new Error('Client error: ' + error.message));
         self.running = false;
       });

src/node/performance/benchmark_server_express.js

@@ -46,7 +46,7 @@ var EventEmitter = require('events');
 var util = require('util');
 
 var express = require('express');
-var bodyParser = require('body-parser')
+var bodyParser = require('body-parser');
 
 function unaryCall(req, res) {
   var reqObj = req.body;
@@ -56,7 +56,7 @@ function unaryCall(req, res) {
 
 function BenchmarkServer(host, port, tls, generic, response_size) {
   var app = express();
-  app.use(bodyParser.json())
+  app.use(bodyParser.json());
   app.put('/serviceProto.BenchmarkService.service/unaryCall', unaryCall);
   this.input_host = host;
   this.input_port = port;