[debug] Better debug messages to try to determine if pool is slowly losing clients to forever busy

Author: indexzero

lib/node-http-proxy.js

@@ -30,7 +30,7 @@ var sys = require('sys'),
     pool = require('./../vendor/pool/main'),
     eyes = require('eyes'),
     min = 0, 
-    max = 100;
+    max = 10;
 
 // Setup the PoolManager
 var manager = pool.createPoolManager();
@@ -146,7 +146,7 @@ HttpProxy.prototype = {
 
     // Open new HTTP request to internal resource with will act as a reverse proxy pass
     var p = manager.getPool(port, server);
-    sys.puts('current pool count for ' + req.headers.host + ":" + port + '  ' +p.clients.length);
+    sys.puts('Current pool count for ' + req.headers.host + ":" + port + '  ' + p.clients.length + ', Busy: ' + p.getBusy() + ', Free: ' + p.getFree());
 
     p.on('error', function (err) {
       // Remark: We should probably do something here

vendor/pool/main.js

@@ -84,6 +84,14 @@ Pool.prototype.onFree = function (client) {
   if (this.pending.length > 0) this.pending.shift()(client);
 };
 
+Pool.prototype.getFree = function () {
+  return this.clients.filter(function (client) { return !client.busy }).length;
+};
+
+Pool.prototype.getBusy = function () {
+  return this.clients.filter(function (client) { return client.busy }).length;
+};
+
 Pool.prototype.setMinClients = function (num) {
   this.minClients = num;
   if (this.clients.length < num) {
@@ -98,6 +106,7 @@ Pool.prototype.setMinClients = function (num) {
 Pool.prototype.setMaxClients = function (num) {
   this.maxClients = num;
 };
+
 Pool.prototype.end = function () {
   this.clients.forEach(function (c) {c.end()});
 };