diff --git a/Connection.php b/Connection.php
index 175690d..a225b6a 100644
--- a/Connection.php
+++ b/Connection.php
@@ -52,7 +52,7 @@ class Connection extends Component
 
 	public int $read_timeout = 10;
 
-	public array $pool;
+	public array $pool = ['max' => 10, 'min' => 1];
 
 
 	private PoolConnection $connection;
@@ -118,9 +118,16 @@ class Connection extends Component
 	 */
 	public function connectPoolInstance()
 	{
-		$pool = $this->slaveConfig['pool'] ?? ['max' => 10, 'min' => 1];
-
-		$this->connection->initConnections($this->cds, $pool['max']);
+		$this->connection->initConnections([
+			'cds'             => $this->cds,
+			'username'        => $this->username,
+			'password'        => $this->password,
+			'attributes'      => $this->attributes,
+			'connect_timeout' => $this->connect_timeout,
+			'read_timeout'    => $this->read_timeout,
+			'dbname'          => $this->database,
+			'pool'            => $this->pool
+		], $this->pool['max']);
 	}
 
 
@@ -148,16 +155,7 @@ class Connection extends Component
 	 */
 	public function getMasterClient(): Mysql\PDO
 	{
-		return $this->connection->get([
-			'cds'             => $this->cds,
-			'username'        => $this->username,
-			'password'        => $this->password,
-			'attributes'      => $this->attributes,
-			'connect_timeout' => $this->connect_timeout,
-			'read_timeout'    => $this->read_timeout,
-			'dbname'          => $this->database,
-			'pool'            => $this->pool
-		]);
+		return $this->connection->get($this->cds);
 	}
 
 	/**
diff --git a/Mysql/PDO.php b/Mysql/PDO.php
index 0e0a637..33facfc 100644
--- a/Mysql/PDO.php
+++ b/Mysql/PDO.php
@@ -2,6 +2,7 @@
 
 namespace Database\Mysql;
 
+use Database\Db;
 use Exception;
 use Kiri;
 use Kiri\Events\EventProvider;
@@ -362,6 +363,7 @@ class PDO implements StopHeartbeatCheck
 		$link = new \PDO('mysql:dbname=' . $this->dbname . ';host=' . $this->cds, $this->username, $this->password, [
 			\PDO::ATTR_EMULATE_PREPARES   => false,
 			\PDO::ATTR_CASE               => \PDO::CASE_NATURAL,
+			\PDO::ATTR_PERSISTENT         => true,
 			\PDO::ATTR_TIMEOUT            => $this->connect_timeout,
 			\PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES ' . $this->charset
 		]);
@@ -371,6 +373,9 @@ class PDO implements StopHeartbeatCheck
 		foreach ($this->attributes as $key => $attribute) {
 			$link->setAttribute($key, $attribute);
 		}
+		if (Db::inTransactionsActive()) {
+			$link->beginTransaction();
+		}
 		return $link;
 	}