threadpool

背景 当系统中的业务存在大量的相同任务（比如发送大量邮件），并且每个任务花费的时间也比较长，前段需要较快 的响应，针对这种需求，我们可以采用消息队列进行异步通知，同时也可以采用线程池+内存队列实现异步通知，处理业务问题。 代码实现 以下采用发送邮件作为demo 邮箱实体类 @Data public class Email implements Serializable { private static final long serialVersionUID = 1L; /** * 自增主键 */ private Long id; /** * 接收人邮箱(多个逗号分开) */ private String receiveEmail; /** * 主题 */ private String subject; /** * 发送内容 */ private String content; /** * 模板 */ private String template; /** * 发送时间 */ private Timestamp sendTime; } 邮件队列 public class MailQueue { //队列大小 static final int QUEUE_MAX_SIZE = 1000; static BlockingQueue<Email> blockingQueue = new

In the Unity PerThreadLifetimeManager documentation, I read that: " This lifetime manager does not dispose the instances it holds ". Ref.: http://msdn.microsoft.com/en-us/library/ff647854.aspx So, if I am using a ThreadPool, does it mean that objects resolved using Unity on a Thread of the ThreadPool will not get disposed at the end of the work done in that thread before being returned to the pool? Any pattern or ideas how I can ensure that the objects do get disposed & I get a clean thread from the thread pool? Thanks! It depends on what type of lifetime manager. The PerThreadLifetimeManager

There are 5 threads running in an infinite loop. 2 of them will send messages when queue is not empty. 4 of them will keep sending heartbeat within 5 minutes. 1 of them is to request data from another source. When it utilizes 100% of the CPU, I can not use any other applications in the window. The whole window becomes very slow. EDIT: can sleep be put after WaitOne? if(autoEvent.WaitOne()) { } else { } Thread.Sleep(100); Can sleep be put after subscriber.Recv() which is ZeroMQ ? all threads i put a sleep if no Recv(), however there is one thread i do not dare to put a sleep in realtime

I am running a function for several sets of iterables, returning a list of all results as soon as all processes are finished. def fct(variable1, variable2): # do an operation that does not necessarily take the same amount of # time for different input variables and yields result1 and result2 return result1, result2 variables1 = [1,2,3,4] variables2 = [7,8,9,0] with ThreadPoolExecutor(max_workers = 8) as executor: future = executor.map(fct,variables1,variables2) print '[%s]' % ', '.join(map(str, future)) >>> [ (12,3) , (13,4) , (14,5) , (15,6) ] How can I print intermediary results e.g. for

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-nio-8080-exec-3 - 18:50:56 |- these take less than a http-nio-8080-exec-3 - 18:50:56 | second but get