threadpool

Limiting number of requests to a servlet

由 ＊爱你＆永不变心＊ 提交于 2019-12-10 11:49:31
问题 We have a servlet which occupies more virtual memory on the server due to the logic it has. For this reason, we would like to limit the concurrent requests to this server say for example we would only want 10 concurrent requests processed. The other requests have to wait in the queue. Can a custom thread pool be created and assign for this servlet to handle this scenario? We are using WebLogic server 9.2. Or is there any other better approach to do this? Appreciate any thoughts. 回答1: Can a

Have Tomcat handle websocket calls in parallel, using different threads

由 那年仲夏 提交于 2019-12-10 11:32:18
问题 I have a Tomcat 8 websocket application and noticed a certain behavior when handling websocket client calls. Some details: http-nio-8080-exec-3 - 18:50:56 <-- this takes 30 seconds http-nio-8080-exec-3 - 18:50:56 <--+ http-nio-8080-exec-3 - 18:50:56 | http-nio-8080-exec-3 - 18:50:56 | http-nio-8080-exec-3 - 18:50:56 | http-nio-8080-exec-3 - 18:50:56 | http-nio-8080-exec-3 - 18:50:56 | http-nio-8080-exec-3 - 18:50:56 | http-nio-8080-exec-3 - 18:50:56 | http-nio-8080-exec-3 - 18:50:56 | http

How to configure ThreadPool priority in Playframework

由 为君一笑 提交于 2019-12-10 09:54:26
问题 We have 2 ExecutionContexts in the system (Scala 2.11.4, Playframework 2.3.7) Primary context - for system operational work (Uses primary Play ExecutionContext). Administrative - for backend related tasks. I've separated those into 2 in application.configurations. play { akka { akka.loggers = ["akka.event.slf4j.Slf4jLogger"] loglevel = DEBUG actor { default-dispatcher = { fork-join-executor { parallelism-min = 20 parallelism-max = 20 } } } } } contexts { admin { fork-join-executor {

聊聊dubbo的AllDispatcher

由 对着背影说爱祢 提交于 2019-12-10 07:24:13
序 本文主要研究一下dubbo的AllDispatcher Dispatcher dubbo-2.7.3/dubbo-remoting/dubbo-remoting-api/src/main/java/org/apache/dubbo/remoting/Dispatcher.java @SPI(AllDispatcher.NAME) public interface Dispatcher { /** * dispatch the message to threadpool. * * @param handler * @param url * @return channel handler */ @Adaptive({Constants.DISPATCHER_KEY, "dispather", "channel.handler"}) // The last two parameters are reserved for compatibility with the old configuration ChannelHandler dispatch(ChannelHandler handler, URL url); } Dispatcher接口定义了dispatch方法，返回ChannelHandler AllDispatcher dubbo-2.7.3/dubbo-remoting

聊聊dubbo的ExecutionDispatcher

由 ☆樱花仙子☆ 提交于 2019-12-10 07:16:06
序 本文主要研究一下dubbo的ExecutionDispatcher ExecutionDispatcher dubbo-2.7.3/dubbo-remoting/dubbo-remoting-api/src/main/java/org/apache/dubbo/remoting/transport/dispatcher/execution/ExecutionDispatcher.java public class ExecutionDispatcher implements Dispatcher { public static final String NAME = "execution"; @Override public ChannelHandler dispatch(ChannelHandler handler, URL url) { return new ExecutionChannelHandler(handler, url); } } ExecutionDispatcher实现了Dispatcher接口，其dispatch方法返回的是ExecutionChannelHandler ExecutionChannelHandler dubbo-2.7.3/dubbo-remoting/dubbo-remoting-api/src/main/java/org/apache

C# Catching exception which is occurring on ThreadPool

由 纵饮孤独 提交于 2019-12-10 02:06:43
问题 I am investigating some crashes in my application caused by a Win32 exception, and I have narrowed it down that it must be occurring in the threadpool which is taking care of the EventLog.EntryWrittenEventHandler event handler in my application. I set this up like this: // Create the event log monitor eventLog.Log = "Application"; eventLog.EnableRaisingEvents = true; eventLog.EntryWritten += new EntryWrittenEventHandler(EventLogMonitor); EventLogMonitor is the handler for my event. I am

boost threadpool

由 孤街浪徒 提交于 2019-12-10 00:14:31
问题 I'm trying to create a threadpool with the boost threadpool library, but on defining it I keep getting lots of error about template params being wrong. I'm probably doing something fundamentally wrong, but I'm not seeing it? //Threadpool typedef boost::threadpool::thread_pool< boost::threadpool::task_func, boost::threadpool::fifo_scheduler<tsk>, boost::threadpool::static_size<boost::threadpool::fifo_pool>, boost::threadpool::resize_controller<boost::threadpool::fifo_pool>, boost::threadpool:

聊聊Elasticsearch的MonitorService

由 南楼画角 提交于 2019-12-09 23:00:52
序 本文主要研究一下Elasticsearch的MonitorService MonitorService elasticsearch-7.0.1/server/src/main/java/org/elasticsearch/monitor/MonitorService.java public class MonitorService extends AbstractLifecycleComponent { private final JvmGcMonitorService jvmGcMonitorService; private final OsService osService; private final ProcessService processService; private final JvmService jvmService; private final FsService fsService; public MonitorService(Settings settings, NodeEnvironment nodeEnvironment, ThreadPool threadPool, ClusterInfoService clusterInfoService) throws IOException { this.jvmGcMonitorService = new

Queue Thread In Blackberry

由 房东的猫 提交于 2019-12-09 17:06:53
问题 I've looked at the BB API(5.0) and I can't find any way of serially executing a batch of threads. I know BB has a limit on the number of threads it will launch, so I don't want to launch 7 if the user clicks through things fast enough but I cannot find anything like a thread pool. Is there an easy fix for this or do I have to create a data structure? 回答1: If you just want to execute a bunch of tasks on a single thread serially and order isn't important, you could create a Timer object (which

C# How to count managed threads in my AppDomain?

由 梦想与她 提交于 2019-12-09 16:14:12
问题 Is there a way to find out how many managed thread I use (including ThreadPool)? When I get count of unmanaged threads through GetProcess I have an insane number of it (21 at very beginning) 回答1: That's not the way it works. Any thread in a managed program can execute managed code, including ones that were originally started as an unmanaged thread. Which most are, the main thread and any threadpool thread starts life executing purely unmanaged code. It thunks into managed code though the kind
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