@Override
    public ScheduledFuture<?> scheduleAtFixedRate(final Runnable command, final long initialDelay, final long period,
                                                  final TimeUnit unit) {
        return this.executor.scheduleAtFixedRate(command, initialDelay, period, unit);
    }
The global timer manager.

@author boyan (boyan@alibaba-inc.com)

2018-Mar-30 3:24:34 PM
jraft-core/src/main/java/com/alipay/sofa/jraft/core/TimerManager.java