dubbo ---- ThreadPoolExecutor.AbortPolicy

最新推荐文章于 2024-08-18 18:37:58 发布

momsbaby

最新推荐文章于 2024-08-18 18:37:58 发布

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分类专栏： dubbo 文章标签： java

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本文介绍了如何在Dubbo中扩展线程拒绝任务处理程序，并通过日志记录来监控线程池的状态。详细阐述了日志信息的格式，包括线程名称、线程池大小、任务计数等关键指标，以及如何使用抛出RejectedExecutionException来处理超载情况。

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public class AbortPolicyWithReport extends ThreadPoolExecutor.AbortPolicy {
    
    protected static final Logger logger = LoggerFactory.getLogger(AbortPolicyWithReport.class);
    
    private final String threadName;
    
    private final URL url;
    
    public AbortPolicyWithReport(String threadName, URL url) {
        this.threadName = threadName;
        this.url = url;
    }
    
    @Override
    public void rejectedExecution(Runnable r, ThreadPoolExecutor e) {
        String msg = String.format("Thread pool is EXHAUSTED!" +
        		" Thread Name: %s, Pool Size: %d (active: %d, core: %d, max: %d, largest: %d), Task: %d (completed: %d), Executor status:(isShutdown:%s, isTerminated:%s, isTerminating:%s), in %s!" , 
                threadName, e.getPoolSize(), e.getActiveCount(), e.getCorePoolSize(), e.getMaximumPoolSize(), e.getLargestPoolSize(),
                e.getTaskCount(), e.getCompletedTaskCount(), e.isShutdown(), e.isTerminated(), e.isTerminating(), url.toIdentityString());
        logger.warn(msg);
        throw new RejectedExecutionException(msg);
    }

}

dubbo中扩展线程拒绝任务的处理程序，仅作了日志记录