负载均衡最小连接数_array负载均衡设备网络连接数

/**
 *
 *                       1
 *               2                 3
 *        4          5       6          7
 *永远去第一个进行访问  访问过后将访问次数+1，然后从新排序
 * 排序方式：
 *      永远之和当前节点的两个子节点进行比较，
 *      如果访问次数大于左边、小于右边，就和左边的交换位置
 *      如果访问次数大于左边也大于右边，那么就和右边交换位置，
 *
 */
public class LC {
    Node[] nodes = null;
    public void init(String names) {
        String[] split = names.split(",");
        nodes = new Node[split.length+1];
        for (int i = 0; i < split.length; i++) {
            Node node = new Node(split[i]);;
            nodes[i+1] = node;

        }
    }
     public void request(){
         System.out.println("before:"+Arrays.toString(nodes));
         Node node = nodes[1];
         node.num.incrementAndGet();
         int i = 1;
         //如果没有下一层就不用在比较了 i << 1表示当前节点的下一个左节点
         while (i << 1 < nodes.length) {
             int flag = i;
             int left = 1<<i;
             int right = left+1;
             if (nodes[left].num.get() < nodes[flag].num.get()) {
                 flag = left;
             }

             if (right < nodes.length && nodes[right].num.get() < nodes[flag].num.get()) {
                 flag = right;
             }
             if (i != flag) {
                 Node temp = nodes[i];
                 nodes[i] = nodes[flag];
                 nodes[flag] = temp;
                 i = flag;
             }else {
                 break;
             }
         }
         System.out.println("after:"+ Arrays.toString(nodes));
         System.out.println("==========================");
     }

    public static void main(String[] args) {
        LC lc = new LC();
        lc.init("a,b,c,d,e");
        for (int i = 0; i < 10; i++) {
            lc.request();
        }

    }

    class Node{
        String name;
        AtomicInteger num = new AtomicInteger();

        public Node(String name) {
            this.name = name;
        }

        @Override
        public String toString() {
            return "Node{" +
                    "name='" + name + '\'' +
                    ", num=" + num +
                    '}';
        }
    }
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79