public void run()

in eureka-client/src/main/java/com/netflix/discovery/TimedSupervisorTask.java [63:105]


    public void run() {
        Future<?> future = null;
        try {
            future = executor.submit(task);
            threadPoolLevelGauge.set((long) executor.getActiveCount());
            future.get(timeoutMillis, TimeUnit.MILLISECONDS);  // block until done or timeout
            delay.set(timeoutMillis);
            threadPoolLevelGauge.set((long) executor.getActiveCount());
            successCounter.increment();
        } catch (TimeoutException e) {
            logger.warn("task supervisor timed out", e);
            timeoutCounter.increment();

            long currentDelay = delay.get();
            long newDelay = Math.min(maxDelay, currentDelay * 2);
            delay.compareAndSet(currentDelay, newDelay);

        } catch (RejectedExecutionException e) {
            if (executor.isShutdown() || scheduler.isShutdown()) {
                logger.warn("task supervisor shutting down, reject the task", e);
            } else {
                logger.warn("task supervisor rejected the task", e);
            }

            rejectedCounter.increment();
        } catch (Throwable e) {
            if (executor.isShutdown() || scheduler.isShutdown()) {
                logger.warn("task supervisor shutting down, can't accept the task");
            } else {
                logger.warn("task supervisor threw an exception", e);
            }

            throwableCounter.increment();
        } finally {
            if (future != null) {
                future.cancel(true);
            }

            if (!scheduler.isShutdown()) {
                scheduler.schedule(this, delay.get(), TimeUnit.MILLISECONDS);
            }
        }
    }