fix(replication): mysql needs access to pool settings

lib/dialects/abstract/connection-manager.js

@@ -13,7 +13,7 @@ var Pooling = require('generic-pool')
   , ConnectionManager;
 
 ConnectionManager = function(dialect, sequelize) {
-  var config = sequelize.config;
+  var config = _.cloneDeep(sequelize.config);
 
   this.sequelize = sequelize;
   this.config = config;
@@ -85,7 +85,7 @@ ConnectionManager.prototype.close = function () {
 // If he does this, generic-pool will try to call connect before the dialect-specific connection manager has been correctly set up
 ConnectionManager.prototype.initPools = function () {
   var self = this
-    , config = _.cloneDeep(this.config);
+    , config = this.config;
 
   if (!config.replication) {
     this.pool = Pooling.Pool({
@@ -119,7 +119,8 @@ ConnectionManager.prototype.initPools = function () {
     port: config.port,
     username: config.username,
     password: config.password,
-    database: config.database
+    database: config.database,
+    pool: config.pool
   });
 
   // Apply defaults to each read config
@@ -129,7 +130,8 @@ ConnectionManager.prototype.initPools = function () {
       port: self.config.port,
       username: self.config.username,
       password: self.config.password,
-      database: self.config.database
+      database: self.config.database,
+      pool: self.config.pool
     });
   });
 

test/integration/replication.test.js

@@ -14,7 +14,6 @@ describe(Support.getTestDialectTeaser('Replication'), function() {
   beforeEach(function () {
     this.sequelize = Support.getSequelizeInstance(null, null, null, {
       replication: {
-        // Just need empty objects, sequelize will copy in defaults
         write: Support.getConnectionOptions(),
         read: [Support.getConnectionOptions()]
       }