Question

非常古老的项目我已经继承了＃2;，Apache 2.2.0并且显然从来没有做过正确的工作。

这个过程似乎已经锁定了。偶尔也永远不会完成。如果进程被终止，文件移回到入站，并重新启动它似乎工作。所以这是一个奇怪的间歇性问题。

我认为问题可能是由于自定义RoutePolicy实现;

＆＃13;

package com.company.integration.management;

import org.apache.camel.CamelContext;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Route;
import org.apache.camel.SuspendableService;
import org.apache.camel.component.seda.SedaEndpoint;
import org.apache.camel.impl.ThrottlingInflightRoutePolicy;
import org.apache.log4j.Logger;

public class ParserInflightRoutePolicy extends ThrottlingInflightRoutePolicy {

	private static Route fileRoute;
	
	private static final int MAX_FILES_INFLIGHT = 3;
	private static final int MSG_HIGH_WATERMARK = 100;
	private static final int MSG_LOW_WATERMARK = 25;
	
	private Logger logger = Logger.getLogger(getClass());
	
	@Override
	public void onExchangeBegin(Route route, Exchange exchange) {
		int sedaMessagesInflight = 0;

		sedaMessagesInflight = sedaQueueSize(route);
		
		if (route.getId().equalsIgnoreCase("initialRoute")) {
			fileRoute = route;
			try {
        		if ((sedaQueueSize(route, "seda://parser") >= MAX_FILES_INFLIGHT) || (sedaMessagesInflight >= MSG_HIGH_WATERMARK)) {
        			if ( ! ((SuspendableService)fileRoute.getConsumer()).isSuspended() ) {
        				logger.error("FLOW CONTROL: stop file component");
        				((SuspendableService)fileRoute.getConsumer()).suspend();
        			}
        		}
			}
			catch (Exception ex) {
				logger.error("Error stopping route", ex);
			}
 	   }
		
		if (route.getId().equalsIgnoreCase("pricingRoute") || route.getId().equalsIgnoreCase("persistenceRoute")) {
			try {
        		if ((sedaQueueSize(route, "seda://parser") == 0) && (sedaMessagesInflight <= MSG_LOW_WATERMARK)) {
        			if ( ((SuspendableService)fileRoute.getConsumer()).isSuspended() ) {
        				logger.error("FLOW CONTROL: start file component");
        				((SuspendableService)fileRoute.getConsumer()).resume();
        			}
        		}
			}
			catch (Exception ex) {
				logger.error("Error starting route", ex);
			}
 	   }
	}

	int sedaQueueSize(Route route) {
		int sedaMessagesInflight = 0;
		CamelContext camelContext = route.getRouteContext().getCamelContext();
		
		for (Route rte : camelContext.getRoutes()) {
	       	Endpoint endpoint = rte.getEndpoint();
	       	if (endpoint instanceof SedaEndpoint) {
	       		SedaEndpoint seda = (SedaEndpoint)endpoint;
	       		if (seda.getQueue().size() > 0) {
	       		   sedaMessagesInflight += seda.getQueue().size();
	       		}
	       	}
	    }
		logger.debug("SEDA messages inflight [" + sedaMessagesInflight + "]");
		return 	sedaMessagesInflight;	
	}
	
	int sedaQueueSize(Route route, String endPointUri) {
		CamelContext camelContext = route.getRouteContext().getCamelContext();
		Endpoint endpoint = camelContext.getEndpoint(endPointUri);
		if (endpoint instanceof SedaEndpoint) {
			return ((SedaEndpoint) endpoint).getQueue().size();
		}
		return 0;
	}
	
	@Override
	public void onExchangeDone(Route route, Exchange exchange) {
		;
	}


}

＆＃13;

请注意，此代码似乎不是线程安全的 - 没有在ThottlingInflightRoutePolicy中实现的锁定机制。这会导致间歇性的问题吗？

Apache Camel挂起/锁定 - 线程安全问题？

0 个答案: