diff --git a/src/driver-mysqli/classes/LSYS/Database/MYSQLi.php b/src/driver-mysqli/classes/LSYS/Database/MYSQLi.php
index dd4a113..faf61db 100644
--- a/src/driver-mysqli/classes/LSYS/Database/MYSQLi.php
+++ b/src/driver-mysqli/classes/LSYS/Database/MYSQLi.php
@@ -192,7 +192,7 @@ public function query($sql,array $value=[],array $value_type=[]){
      */
     public function exec($sql,array $value=[],array $value_type=[]){
         try{
-            return parent::query($sql,$value,$value_type);
+            return parent::exec($sql,$value,$value_type);
         }catch (Exception $e){//unlink connect reset transaction status
             if ($this->getConnectManager()->isUnConnect($e->getCode())) {
                 $this->in_transaction=false;
diff --git a/src/slave-query-check-cache-memcache/classes/LSYS/Database/SlaveQueryCheck/Cache/Memcache.php b/src/slave-query-check-cache-memcache/classes/LSYS/Database/SlaveQueryCheck/Cache/Memcache.php
index f54c982..e373310 100644
--- a/src/slave-query-check-cache-memcache/classes/LSYS/Database/SlaveQueryCheck/Cache/Memcache.php
+++ b/src/slave-query-check-cache-memcache/classes/LSYS/Database/SlaveQueryCheck/Cache/Memcache.php
@@ -11,22 +11,42 @@ class Memcache implements Cache{
     protected $memcache;
     protected $prefix;
     protected $delayed;
-    public function __construct($delayed=10,\LSYS\Memcache $memcache=null,$prefix='db_master'){
-        $this->memcache=$memcache?$memcache:\LSYS\Memcache\DI::get()->memcache();
+    protected $log;
+    /**
+     * @param number $delayed
+     * @param \LSYS\Memcache $memcache
+     * @param string $prefix
+     * @param callable $log error report callback (\LSYS\Exception $e)
+     */
+    public function __construct($delayed=10,\LSYS\Memcache $memcache=null,$prefix='db_master',callable $log=null){
+        $this->memcache=$memcache;
         $this->prefix=$prefix;
         $this->delayed=$delayed;
+        $this->log=$log;
+    }
+    protected function memcache(){
+        if (!is_object($this->memcache))$this->memcache=\LSYS\Memcache\DI::get()->memcached();
+        try{
+            $this->memcache->configServers();
+        }catch (\LSYS\Exception $e){
+            is_callable($this->log)&&call_user_func($this->log,$e);
+            return;
+        }
+        return $this->memcache;
     }
     public function time(array $table){
-        $this->memcache->configServers();
+        $memcache=$this->memcache();
+        if (!is_object($memcache)) return true;
         foreach ($table as $v){
-            if(intval($this->memcache->get($this->prefix.$v))>time())return true;
+            if(intval($memcache->get($this->prefix.$v))>time())return true;
         }
     }
     public function save(array $table){
-        $this->memcache->configServers();
+        $memcache=$this->memcache();
+        if (!is_object($memcache)) return;
         $delayed=$this->delayed();
         foreach ($table as $v){
-            $this->memcache->set($this->prefix.$v,time()+$delayed,0,$delayed);
+            $memcache->set($this->prefix.$v,time()+$delayed,0,$delayed);
         }
     }
     public function delayed(){
diff --git a/src/slave-query-check-cache-memcached/classes/LSYS/Database/SlaveQueryCheck/Cache/Memcached.php b/src/slave-query-check-cache-memcached/classes/LSYS/Database/SlaveQueryCheck/Cache/Memcached.php
index 68ff68e..7539dae 100644
--- a/src/slave-query-check-cache-memcached/classes/LSYS/Database/SlaveQueryCheck/Cache/Memcached.php
+++ b/src/slave-query-check-cache-memcached/classes/LSYS/Database/SlaveQueryCheck/Cache/Memcached.php
@@ -11,22 +11,42 @@ class Memcached implements Cache{
     protected $memcache;
     protected $prefix;
     protected $delayed;
-    public function __construct($delayed=10,\LSYS\Memcached $memcache=null,$prefix='db_master'){
-        $this->memcache=$memcache?$memcache:\LSYS\Memcached\DI::get()->memcached();
+    protected $log;
+    /**
+     * @param number $delayed
+     * @param \LSYS\Memcached $memcache
+     * @param string $prefix
+     * @param callable $log @param callable $log error report callback (\LSYS\Exception $e)
+     */
+    public function __construct($delayed=10,\LSYS\Memcached $memcache=null,$prefix='db_master',callable $log=null){
+        $this->memcache=$memcache;
         $this->prefix=$prefix;
         $this->delayed=$delayed;
+        $this->log=$log;
+    }
+    protected function memcache(){
+        if (!is_object($this->memcache))$this->memcache=\LSYS\Memcached\DI::get()->memcached();
+        try{
+            $this->memcache->configServers();
+        }catch (\LSYS\Exception $e){
+            is_callable($this->log)&&call_user_func($this->log,$e);
+            return;
+        }
+        return $this->memcache;
     }
     public function time(array $table){
-        $this->memcache->configServers();
+        $memcache=$this->memcache();
+        if (!is_object($memcache)) return true;
         foreach ($table as $v){
-            if(intval($this->memcache->get($this->prefix.$v))>time())return true;
+            if(intval($memcache->get($this->prefix.$v))>time())return true;
         }
     }
     public function save(array $table){
-        $this->memcache->configServers();
+        $memcache=$this->memcache();
+        if (!is_object($memcache)) return;
         $delayed=$this->delayed();
         foreach ($table as $v){
-            $this->memcache->set($this->prefix.$v,time()+$delayed,$delayed);
+            $memcache->set($this->prefix.$v,time()+$delayed,$delayed);
         }
     }
     public function delayed(){
diff --git a/src/slave-query-check-cache-redis/classes/LSYS/Database/SlaveQueryCheck/Cache/Redis.php b/src/slave-query-check-cache-redis/classes/LSYS/Database/SlaveQueryCheck/Cache/Redis.php
index e374b29..5357bc4 100644
--- a/src/slave-query-check-cache-redis/classes/LSYS/Database/SlaveQueryCheck/Cache/Redis.php
+++ b/src/slave-query-check-cache-redis/classes/LSYS/Database/SlaveQueryCheck/Cache/Redis.php
@@ -11,14 +11,33 @@ class Redis implements Cache{
     protected $redis;
     protected $key;
     protected $delayed;
-    public function __construct($delayed=10,\LSYS\Redis $redis=null,$key='db_master'){
+    protected $log;
+    /**
+     * @param number $delayed
+     * @param \LSYS\Redis $redis
+     * @param string $key
+     * @param callable $log error report callback (\LSYS\Exception $e)
+     */
+    public function __construct($delayed=10,\LSYS\Redis $redis=null,$key='db_master',callable $log=null){
         $this->delayed=$delayed;
-        $this->redis=$redis?$redis:\LSYS\Redis\DI::get()->redis();
         $this->key=$key;
+        $this->redis=$redis;
+        $this->log=$log;
+    }
+    protected function redis(){
+        if (!is_object($this->redis))$this->redis=\LSYS\Redis\DI::get()->redis();
+        try{
+            $this->redis->configConnect();
+        }catch (\LSYS\Exception $e){
+            is_callable($this->log)&&call_user_func($this->log,$e);
+            return;
+        }
+        return $this->redis;
     }
     public function time(array $table){
-        $this->redis->configConnect();
-        $val=$this->redis->hMGet($this->key,$table);
+        $redis=$this->redis();
+        if(!is_object($redis))return true;
+        $val=$redis->hMGet($this->key,$table);
         if (is_array($val)){
             foreach ($val as $v){
                 if (intval($v)>time())return true;
@@ -26,9 +45,10 @@ public function time(array $table){
         }
     }
     public function save(array $table){
-        $this->redis->configConnect();
+        $redis=$this->redis();
+        if(!is_object($redis))return ;
         $data=array_combine($table, array_fill(0, count($table), time()+$this->delayed()));
-        return $this->redis->hmSet($this->key,$data);
+        return $redis->hmSet($this->key,$data);
     }
     public function delayed(){
         return $this->delayed;