想将client中线程池设置为可配置的

[LeePui]

版本(version)：1.4.0 this.executorService = Executors .newScheduledThreadPool(Runtime.getRuntime().availableProcessors(), new ThreadFactory() { ...... }); 目前ClientWorker中的executorService，默认线程数是核数，我们不需要这么多线程，想改为可配置的：例如： 在application.properties中添加：nacos.executorService.threadCount=2，则上面池中使用两个线程。 问题：如果不修改与nacos-spring有关的应用，只修改nacos项目，怎么在ClientWorker中能读到应用配置文件中的值呢？

[evin0329]

由于nacos-spring-boot的配置项是固定的，你必须修改源码才能使用nacos.executorService.threadCount=2控制； 或者可以使用 System.setProperty("nacos.executorService.threadCoun", "2");

[LeePui]

由于nacos-spring-boot的配置项是固定的，你必须修改源码才能使用nacos.executorService.threadCount=2控制； 或者可以使用 System.setProperty("nacos.executorService.threadCoun", "2");

多谢

[KomachiSion]

其实应该支持所有可配置参数通过配置项和环境变量进行配置，只是目前我们还需要梳理和重构。待2.0稳定之后会对其进行重构。

[wulianliang22]

一、线程池 1）nacos-grpc-client-executor线程：com.alibaba.nacos.common.remote.client.grpc.GrpcClient#connectToServer

            int threadNumber = ThreadUtils.getSuitableThreadCount(8);
            grpcExecutor = new ThreadPoolExecutor(threadNumber, threadNumber, 10L, TimeUnit.SECONDS,
                    new LinkedBlockingQueue<>(10000),
                    new ThreadFactoryBuilder().daemon(true).nameFormat("nacos-grpc-client-executor-%d")
                            .build());
            grpcExecutor.allowCoreThreadTimeOut(true);

2）com.alibaba.nacos.client.Worker线程：com.alibaba.nacos.client.config.impl.ClientWorker#ClientWorker

    ScheduledExecutorService executorService = Executors
            .newScheduledThreadPool(Math.max(count, MIN_THREAD_NUM), r -> {
                Thread t = new Thread(r);
                t.setName("com.alibaba.nacos.client.Worker");
                t.setDaemon(true);
                return t;
            });

版本信息：<nacos-client.version>2.0.1</nacos-client.version>

二、背景诉求 目前nacos client里是通过 ThreadUtils.getSuitableThreadCount(THREAD_MULTIPLE)的方式取的线程数，对于我们冗余浪费比较严重。我们的cpu是32核的，每次nacos-client new出来的线程有几百个，请问下client里的上面2处的线程池数量可以支持可配置化么？@KomachiSion

[alexhaoxuan]

I have the same request. My server has 64 cores and 128 memory. The CPU was abnormally high before, and the memory file was analyzed. The number of threads of Nacos-client and grpc-service is several K. Analysis of the source code found that each thread pool is the number of virtual cores * 2, but in fact, the number of threads is not used in business, causing some unnecessary thread waste. I had to revise the source code and now it looks like the resource overhead has been reduced by almost a third.

[xqj-0511]

一、线程池 1）nacos-grpc-client-executor线程：com.alibaba.nacos.common.remote.client.grpc.GrpcClient#connectToServer

            int threadNumber = ThreadUtils.getSuitableThreadCount(8);
            grpcExecutor = new ThreadPoolExecutor(threadNumber, threadNumber, 10L, TimeUnit.SECONDS,
                    new LinkedBlockingQueue<>(10000),
                    new ThreadFactoryBuilder().daemon(true).nameFormat("nacos-grpc-client-executor-%d")
                            .build());
            grpcExecutor.allowCoreThreadTimeOut(true);

2）com.alibaba.nacos.client.Worker线程：com.alibaba.nacos.client.config.impl.ClientWorker#ClientWorker

    ScheduledExecutorService executorService = Executors
            .newScheduledThreadPool(Math.max(count, MIN_THREAD_NUM), r -> {
                Thread t = new Thread(r);
                t.setName("com.alibaba.nacos.client.Worker");
                t.setDaemon(true);
                return t;
            });

版本信息：<nacos-client.version>2.0.1</nacos-client.version>

二、背景诉求 目前nacos client里是通过 ThreadUtils.getSuitableThreadCount(THREAD_MULTIPLE)的方式取的线程数，对于我们冗余浪费比较严重。我们的cpu是32核的，每次nacos-client new出来的线程有几百个，请问下client里的上面2处的线程池数量可以支持可配置化么？@KomachiSion

是的，我也遇到该问题了。

[alexhaoxuan]

一、线程池 1）nacos-grpc-client-executor线程：com.alibaba.nacos.common.remote.client.grpc.GrpcClient#connectToServer

            int threadNumber = ThreadUtils.getSuitableThreadCount(8);
            grpcExecutor = new ThreadPoolExecutor(threadNumber, threadNumber, 10L, TimeUnit.SECONDS,
                    new LinkedBlockingQueue<>(10000),
                    new ThreadFactoryBuilder().daemon(true).nameFormat("nacos-grpc-client-executor-%d")
                            .build());
            grpcExecutor.allowCoreThreadTimeOut(true);

2）com.alibaba.nacos.client.Worker线程：com.alibaba.nacos.client.config.impl.ClientWorker#ClientWorker

    ScheduledExecutorService executorService = Executors
            .newScheduledThreadPool(Math.max(count, MIN_THREAD_NUM), r -> {
                Thread t = new Thread(r);
                t.setName("com.alibaba.nacos.client.Worker");
                t.setDaemon(true);
                return t;
            });

版本信息：<nacos-client.version>2.0.1</nacos-client.version> 二、背景诉求 目前nacos client里是通过 ThreadUtils.getSuitableThreadCount(THREAD_MULTIPLE)的方式取的线程数，对于我们冗余浪费比较严重。我们的cpu是32核的，每次nacos-client new出来的线程有几百个，请问下client里的上面2处的线程池数量可以支持可配置化么？@KomachiSion

是的，我也遇到该问题了。 我们的解决方案是：获取到当前机器的cpu数量和16 取最小值。这样避免线程浪费。这样操作下来，我们的nacos 资源消耗直接降低一半 哈哈。

[KomachiSion]

-Dnacos.remote.client.grpc.pool.max.size -Dnacos.remote.client.grpc.pool.core.size

哪个版本开始支持的忘了， 最新版本那肯定是支持的