diff --git a/src/org/redkale/source/DataJdbcSource.java b/src/org/redkale/source/DataJdbcSource.java
index 9698e65ea..3b863a062 100644
--- a/src/org/redkale/source/DataJdbcSource.java
+++ b/src/org/redkale/source/DataJdbcSource.java
@@ -9,7 +9,7 @@ import java.io.*;
 import java.net.URL;
 import java.sql.*;
 import java.util.*;
-import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.*;
 import java.util.concurrent.atomic.*;
 import java.util.function.*;
 import java.util.logging.*;
@@ -41,6 +41,10 @@ public class DataJdbcSource extends AbstractService implements DataSource, DataC
 
     protected URL conf;
 
+    protected int threads;
+
+    protected ExecutorService executor;
+
     protected boolean cacheForbidden;
 
     protected PoolJdbcSource readPool;
@@ -82,10 +86,35 @@ public class DataJdbcSource extends AbstractService implements DataSource, DataC
             if (pn == null || pv == null) continue;
             readprop.put(pn, pv);
         }
+
+        final AtomicInteger counter = new AtomicInteger();
+        this.threads = Integer.decode(readprop.getProperty(JDBC_CONNECTIONSMAX, "" + Runtime.getRuntime().availableProcessors() * 16));
+        this.executor = Executors.newFixedThreadPool(threads, (Runnable r) -> {
+            Thread t = new Thread(r);
+            t.setDaemon(true);
+            String s = "" + counter.incrementAndGet();
+            if (s.length() == 1) {
+                s = "00" + s;
+            } else if (s.length() == 2) {
+                s = "0" + s;
+            }
+            t.setName("DataJdbcSource-Thread-" + s);
+            return t;
+        });
         if (writeprop.isEmpty()) writeprop = readprop;
         this.initByProperties(unitName, readprop, writeprop);
     }
 
+    @Override
+    protected ExecutorService getExecutor() {
+        return executor;
+    }
+
+    @Override
+    public void destroy(AnyValue config) {
+        if (this.executor != null) this.executor.shutdownNow();
+    }
+
     //构造前调用
     protected void preConstruct(String unitName, Properties readprop, Properties writeprop) {
     }
diff --git a/src/org/redkale/source/PoolJdbcSource.java b/src/org/redkale/source/PoolJdbcSource.java
index ba01ad1a4..22d3cbe22 100644
--- a/src/org/redkale/source/PoolJdbcSource.java
+++ b/src/org/redkale/source/PoolJdbcSource.java
@@ -47,7 +47,7 @@ public class PoolJdbcSource {
 
     private final String stype; // "" 或 "read"  或 "write"
 
-    private final int max;
+    private final int maxconns;
 
     private String url;
 
@@ -65,8 +65,8 @@ public class PoolJdbcSource {
         this.url = prop.getProperty(JDBC_URL);
         this.user = prop.getProperty(JDBC_USER);
         this.password = prop.getProperty(JDBC_PWD);
-        this.max = Integer.decode(prop.getProperty(JDBC_CONNECTIONSMAX, "" + Runtime.getRuntime().availableProcessors() * 16));
-        this.queue = new ArrayBlockingQueue<>(this.max);
+        this.maxconns = Integer.decode(prop.getProperty(JDBC_CONNECTIONSMAX, "" + Runtime.getRuntime().availableProcessors() * 16));
+        this.queue = new ArrayBlockingQueue<>(this.maxconns);
         this.listener = new ConnectionEventListener() {
 
             @Override
@@ -287,7 +287,7 @@ public class PoolJdbcSource {
         }
         PooledConnection result = queue.poll();
         if (result == null) {
-            if (usingCounter.get() >= max) {
+            if (usingCounter.get() >= maxconns) {
                 try {
                     result = queue.poll(6, TimeUnit.SECONDS);
                 } catch (Exception t) {