docs: public synchronized void initTaskSchedulerIfNot() {
  
          if (scheduler == null) {
              scheduler = Executors
                      .newSingleThreadScheduledExecutor(DaemonThreadFactory
                              .getInstance());
              CapacityAwareTaskScheduler runner = new CapacityAwareTaskScheduler();
              scheduler.scheduleAtFixedRate(runner,
                      ParallecGlobalConfig.schedulerInitDelay,
                      ParallecGlobalConfig.schedulerCheckInterval,
                      TimeUnit.MILLISECONDS);
              logger.info("initialized daemon task scheduler to evaluate waitQ tasks.");
              
          }
      }