sleep when resource in not satisfy. fix #1522 (#1523) (076ccbdb) · Commits · SUMMER2020 / students / proj-2002252

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterSchedulerThread.java

+31 −29

Original line number	Diff line number	Diff line
		@@ -98,7 +98,11 @@ public class MasterSchedulerThread implements Runnable {
		InterProcessMutex mutex = null;
		try {

		if(OSUtils.checkResource(masterConfig.getMasterMaxCpuloadAvg(), masterConfig.getMasterReservedMemory())){
		boolean runCheckFlag = OSUtils.checkResource(masterConfig.getMasterMaxCpuloadAvg(), masterConfig.getMasterReservedMemory());
		if(!runCheckFlag) {
		Thread.sleep(Constants.SLEEP_TIME_MILLIS);
		continue;
		}
		if (zkMasterClient.getZkClient().getState() == CuratorFrameworkState.STARTED) {

		// create distributed lock with the root node path of the lock space as /dolphinscheduler/lock/masters
		@@ -124,13 +128,11 @@ public class MasterSchedulerThread implements Runnable {
		logger.error("scan command error ", e);
		processDao.moveToErrorCommand(command, e.toString());
		}
		} else{
		//indicate that no command ,sleep for 1s
		Thread.sleep(Constants.SLEEP_TIME_MILLIS);
		}
		}
		}

		// accessing the command table every SLEEP_TIME_MILLIS milliseconds
		Thread.sleep(Constants.SLEEP_TIME_MILLIS);

		}catch (Exception e){
		logger.error("master scheduler thread exception : " + e.getMessage(),e);
		}finally{