Examples with HealthCounts com.netflix.hystrix.HystrixCommandMetrics.HealthCounts used on opensource projects

Example 1 with HealthCounts

use of com.netflix.hystrix.HystrixCommandMetrics.HealthCounts in project Hystrix by Netflix.

the class HystrixCommandAsyncDemo method startMetricsMonitor.

public void startMetricsMonitor(final boolean shouldLog) {
    Thread t = new Thread(new Runnable() {

        @Override
        public void run() {
            while (true) {
                // wait 5 seconds on each loop
                try {
                    Thread.sleep(5000);
                } catch (Exception e) {
                // ignore
                }
                // we are using default names so can use class.getSimpleName() to derive the keys
                HystrixCommandMetrics creditCardMetrics = HystrixCommandMetrics.getInstance(HystrixCommandKey.Factory.asKey(CreditCardCommand.class.getSimpleName()));
                HystrixCommandMetrics orderMetrics = HystrixCommandMetrics.getInstance(HystrixCommandKey.Factory.asKey(GetOrderCommand.class.getSimpleName()));
                HystrixCommandMetrics userAccountMetrics = HystrixCommandMetrics.getInstance(HystrixCommandKey.Factory.asKey(GetUserAccountCommand.class.getSimpleName()));
                HystrixCommandMetrics paymentInformationMetrics = HystrixCommandMetrics.getInstance(HystrixCommandKey.Factory.asKey(GetPaymentInformationCommand.class.getSimpleName()));
                if (shouldLog) {
                    // print out metrics
                    StringBuilder out = new StringBuilder();
                    out.append("\n");
                    out.append("#####################################################################################").append("\n");
                    out.append("# CreditCardCommand: " + getStatsStringFromMetrics(creditCardMetrics)).append("\n");
                    out.append("# GetOrderCommand: " + getStatsStringFromMetrics(orderMetrics)).append("\n");
                    out.append("# GetUserAccountCommand: " + getStatsStringFromMetrics(userAccountMetrics)).append("\n");
                    out.append("# GetPaymentInformationCommand: " + getStatsStringFromMetrics(paymentInformationMetrics)).append("\n");
                    out.append("#####################################################################################").append("\n");
                    System.out.println(out.toString());
                }
            }
        }

        private String getStatsStringFromMetrics(HystrixCommandMetrics metrics) {
            StringBuilder m = new StringBuilder();
            if (metrics != null) {
                HealthCounts health = metrics.getHealthCounts();
                m.append("Requests: ").append(health.getTotalRequests()).append(" ");
                m.append("Errors: ").append(health.getErrorCount()).append(" (").append(health.getErrorPercentage()).append("%)   ");
                m.append("Mean: ").append(metrics.getExecutionTimePercentile(50)).append(" ");
                m.append("75th: ").append(metrics.getExecutionTimePercentile(75)).append(" ");
                m.append("90th: ").append(metrics.getExecutionTimePercentile(90)).append(" ");
                m.append("99th: ").append(metrics.getExecutionTimePercentile(99)).append(" ");
            }
            return m.toString();
        }
    });
    t.setDaemon(true);
    t.start();
}