Dubbo性能调优参数及原理

最新推荐文章于 2024-07-25 22:15:00 发布

javarrr

最新推荐文章于 2024-07-25 22:15:00 发布

阅读量236

点赞数

CC 4.0 BY-SA版权

分类专栏： spring springboot spark springcloud mysql 文章标签： doubbo 性能 Java 架构师 it

本文链接：https://blog.youkuaiyun.com/javarrr/article/details/84584597

Dubbo调用模型

图片描述(最多50字)

常用性能调优参数

图片描述(最多50字)

源码及原理分析

threads

FixedThreadPool.java

public Executor getExecutor(URL url) {
    String name = url.getParameter(Constants.THREAD_NAME_KEY, Constants.DEFAULT_THREAD_NAME);    int threads = url.getParameter(Constants.THREADS_KEY, Constants.DEFAULT_THREADS);    int queues = url.getParameter(Constants.QUEUES_KEY, Constants.DEFAULT_QUEUES);    return new ThreadPoolExecutor(threads, threads, 0, TimeUnit.MILLISECONDS, 
            queues == 0 ? new SynchronousQueue<Runnable>() : 
                    (queues < 0 ? new LinkedBlockingQueue<Runnable>() : 
                            new LinkedBlockingQueue<Runnable>(queues)),            new NamedThreadFactory(name, true), new AbortPolicyWithReport(name, url));
}
LimitedThreadPool.java

public Executor getExecutor(URL url) {
    String name = url.getParameter(Constants.THREAD_NAME_KEY, Constants.DEFAULT_THREAD_NAME);    int cores = url.getParameter(Constants.CORE_THREADS_KEY, Constants.DEFAULT_CORE_THREADS);    int threads = url.getParameter(Constants.THREADS_KEY, Constants.DEFAULT_THREADS);    int queues = url.getParameter(Constants.QUEUES_KEY, Constants.DEFAULT_QUEUES);    return new ThreadPoolExecutor(cores, threads, Long.MAX_VALUE, TimeUnit.MILLISECONDS, 
            queues == 0 ? new SynchronousQueue<Runnable>() : 
                    (queues < 0 ? new LinkedBlockingQueue<Runnable>() : 
                            new LinkedBlockingQueue<Runnable>(queues)),            new NamedThreadFactory(name, true), new AbortPolicyWithReport(name, url));
}

其中，Constants.DEFAULT_QUEUES = 200。threads 参数配置的是业务处理线程池的最大（或核心）线程数。

iothreads

NettyServer.java

@Overrideprotected void doOpen() throws Throwable {
    NettyHelper.setNettyLog

最低0.47元/天解锁文章

200万优质内容无限畅学