public void report() {
        synchronized (this) {
            report(this.registry.getGauges(this.filter), //
                this.registry.getCounters(this.filter), //
                this.registry.getHistograms(this.filter), //
                this.registry.getMeters(this.filter), //
                this.registry.getTimers(this.filter));
        }
    }
Report the current values of all metrics in the registry.
jraft-core/src/main/java/com/alipay/sofa/jraft/util/MetricReporter.java