Netflix Servo 用Java语言，提供暴露、发布应用运行指标的简单接口，主要满足的需求包括：使用JMX、简单、灵活发布。

示例代码：

public class Server {
    @MonitorId
    private final String id;

    @Monitor(name="Status", type=INFORMATIONAL)
    private AtomicReference status = new AtomicReference("UP");

    @Monitor(name="CurrentConnections", type=GAUGE)
    private AtomicInteger currentConnections = new AtomicInteger(0);

    @Monitor(name="TotalConnections", type=COUNTER)
    private AtomicInteger totalConnections = new AtomicInteger(0);

    @Monitor(name="BytesIn", type=COUNTER)
    private AtomicLong bytesIn = new AtomicLong(0L);

    @Monitor(name="BytesOut", type=COUNTER)
    private AtomicLong bytesOut = new AtomicLong(0L);

    public Server(String id) {
        this.id = id;
    }

    // ...
}

Server s1 = new Server("s1");
DefaultMonitorRegistry.getInstance().registerObject(s1);

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