如果Reporting Service偶尔出现不可访问或访问出错情况,这种情况一般没有做监控的话,很难捕捉到.出现这种问题,最好检查Reporting Service的日志文件. 今天早上就遇到这样一个案例,应用程序监控到调用SQL SERVER 2005的Reporting Service出现Method failed: HTTP/1.1 500 Internal Server Error .检查C:\Program Files\Microsoft SQL Server\MSSQL.3\Rep…

We were unable to locate this content in zh-cn. Here is the same content in en-us. .NET The CLR's Thread Pool Jeffrey Richter   Contents The Birth of the Thread Pool Capability 1: Calling a Method Asynchronously Capability 2: Calling a Method at Time…

本文来自:http://blog.chinaunix.net/uid-26896862-id-3993773.html 刚刚经历了淘宝的双11,真实感受到了紧张的氛围.尽管DB淡定的度过,但是历程中的波折,可谓惊心动魄.其中MySQL在大量连接(万级)的场景下,表现出性能远远低于预期,并且出现明显的波动,成为一个非常重要的问题.问题虽然解决,但是后续的思考和方法的探索,仍然继续.以下是在MySQL层增加Thread pool方式,解决大量连接问题. 1.<MySQL Thread Pool: P…

worksteal的场景 对于一个线程池,每个线程有一个队列,想象这种场景,有的线程队列中有大量的比较耗时的任务堆积,而有的线程队列却是空的,现象就是有的线程处于饥饿状态,而有的线程处于消化不良的状态,这时就需要一种方法来解决这个问题. 需要worksteal,顾名思义就是任务窃取,当一个线程处于饥饿状态时,它就会去其它的线程队列中窃取任务,解决线程饥饿导致的效率底的问题. worksteal要点 每个工作线程将任务放到它内部的队列中: 队列是一个双端队列,支持LIFO的push_front和p…

Pooled Threads Improve Scalability With New Thread Pool APIs Robert Saccone Portions of this article are based on a prerelease version of Windows Server 2008. Details contained herein are subject to change. Code download available at: VistaThreadPool…

Thread Pooling https://msdn.microsoft.com/en-us/library/windows/desktop/ms686756(v=vs.85).aspx Thread Pools https://msdn.microsoft.com/en-us/library/windows/desktop/ms686760%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396 https://github.com/dotnet/core…

A new thread pool plugin is now a part of the MySQL Enterprise Edition.In this blog we will cover the problem that the thread pool is solvingand some high-level description of how it solves this problem. In the traditional MySQL server model there is…

http://pages.videotron.com/aminer/threadpool.htm http://pages.videotron.com/aminer/zip/threadpool.zip  FPC Pascal v2.2.0+ / Delphi 5+ http://pages.videotron.com/aminer/zip/pthreadpool_xe4.zip (for Delphi XE to XE4) http://pages.videotron.com/aminer/z…

一.问题 在测试环境遇到的异常信息,如下: 16-10-17 00:00:00.033 [New I/O server worker #1-6] WARN  com.alibaba.dubbo.common.threadpool.support.AbortPolicyWithReport -  [DUBBO] Thread pool is EXHAUSTED! Thread Name: DubboServerHandler-10.0.0.77:20703, Pool Size: 500 (act…

版权声明:转载著名出处 https://blog.csdn.net/gcola007/article/details/78750220 背景 刚粗略看完一遍c++ primer第五版,一直在找一些c++小项目练手,实验楼里面有很多项目,但是会员太贵了,学生党就只能google+github自行搜索完成项目了.注:本文纯提供自己的理解,代码完全照抄,有想法的欢迎评论留言一起讨论. 本文参考: c++11线程池实现 A simple C++11 Thread Pool implementation…