Fix bug #417

Closes #417
Closes #418

include/MySQL_HostGroups_Manager.h

@@ -60,7 +60,7 @@ class MySrvC {	// MySQL Server Container
 	MySrvConnList *ConnectionsFree;
 	MySrvC(char *, uint16_t, unsigned int, enum MySerStatus, unsigned int, unsigned int _max_connections, unsigned int _max_replication_lag);
 	~MySrvC();
-	void connect_error();
+	void connect_error(int);
 };
 
 class MySrvList {	// MySQL Server List

lib/MySQL_HostGroups_Manager.cpp

@@ -125,11 +125,18 @@ MySrvC::MySrvC(char *add, uint16_t p, unsigned int _weight, enum MySerStatus _st
 	ConnectionsFree=new MySrvConnList(this);
 }
 
-void MySrvC::connect_error() {
+void MySrvC::connect_error(int err_num) {
 	// NOTE: this function operates without any mutex
 	// although, it is not extremely important if any counter is lost
 	// as a single connection failure won't make a significant difference
 	__sync_fetch_and_add(&connect_ERR,1);
+	switch (err_num) {
+		case 1045: // access denied
+			return;
+			break;
+		default:
+			break;
+	}
 	time_t t=time(NULL);
 	if (t!=time_last_detected_error) {
 		time_last_detected_error=t;

lib/mysql_connection.cpp

@@ -435,11 +435,11 @@ handler_again:
 			__sync_fetch_and_add(&parent->connect_OK,1);
 			break;
 		case ASYNC_CONNECT_FAILED:
-			parent->connect_error();
+			parent->connect_error(mysql_errno(mysql));
 			break;
 		case ASYNC_CONNECT_TIMEOUT:
 			proxy_error("Connect timeout on %s:%d : %llu - %llu = %llu\n",  parent->address, parent->port, myds->sess->thread->curtime , myds->wait_until, myds->sess->thread->curtime - myds->wait_until);
-			parent->connect_error();
+			parent->connect_error(mysql_errno(mysql));
 			break;
 		case ASYNC_CHANGE_USER_START:
 			change_user_start();