src/org/redkale/util/ThreadHashExecutor.java

@@ -23,25 +23,41 @@ public class ThreadHashExecutor {
 
     private final AtomicInteger index = new AtomicInteger();
 
+    private final LinkedBlockingQueue<Runnable>[] queues;
+
     private final ExecutorService[] executors;
 
     public ThreadHashExecutor(int size) {
         ExecutorService[] array = new ExecutorService[size];
+        LinkedBlockingQueue[] ques = new LinkedBlockingQueue[size];
         final AtomicInteger counter = new AtomicInteger();
         for (int i = 0; i < array.length; i++) {
-            array[i] = Executors.newSingleThreadExecutor((Runnable r) -> {
-                Thread t = new Thread(r);
-                t.setDaemon(true);
-                t.setName("Redkale-HashThread-" + counter.incrementAndGet());
-                return t;
-            });
+            LinkedBlockingQueue<Runnable> queue = new LinkedBlockingQueue<>();
+            ques[i] = queue;
+            array[i] = new ThreadPoolExecutor(1, 1, 0L, TimeUnit.MILLISECONDS, queue,
+                (Runnable r) -> {
+                    Thread t = new Thread(r);
+                    t.setDaemon(true);
+                    t.setName("Redkale-HashThread-" + counter.incrementAndGet());
+                    return t;
+                });
         }
+        this.queues = ques;
         this.executors = array;
     }
 
     public void execute(int hash, Runnable command) {
         if (hash < 1) {
-            this.executors[index.incrementAndGet() % this.executors.length].execute(command);
+            int k = 0;
+            int minsize = queues[0].size();
+            for (int i = 1; i < queues.length; i++) {
+                int size = queues[i].size();
+                if (size < minsize) {
+                    minsize = size;
+                    k = i;
+                }
+            }
+            this.executors[k].execute(command);
         } else {
             this.executors[hash % this.executors.length].execute(command);
         }