要想容错,该怎么办? 父actor首先要获知子actor的失败状态,然后确定该怎么办, “怎么办”这回事叫做“supervisorStrategy".   // Restart the storage child when StorageException is thrown.   // After 3 restarts within 5 seconds it will be stopped.   override val supervisorStrategy = OneForOneStrate…

这两天在Qtcreator上编译程序的时候莫名其妙的出现了FTH: (7156): *** Fault tolerant heap shim applied to current process. This is usually due to previous crashes. ***的问题,清除掉所有的文件,重新qmake和构建都不能解决这个问题. 有人说修改注册表中HKEY_LOCAL_MACHINE\Software\Microsoft\FTH\Enabled的值为0,然而并没有什么用处.…

这个问题偶尔碰到两次,现在又遇上了,解决办法如下: 打开注册表,设置HKLM\Software\Microsoft\FTH\Enabled 为0 打开CMD,运行Rundll32.exe fthsvc.dll,FthSysprepSpecialize 参考http://msdn.microsoft.com/en-us/library/dd744764…

转自:http://blog.csdn.net/jmppok/article/details/17264495 本文结合网上一些资料,对他们进行整理,摘选和翻译而成,对Akka进行简要的说明.引用资料在最后列出. 1.什么是Akka Akka 是一个用 Scala 编写的库,用于简化编写容错的.高可伸缩性的 Java 和 Scala 的 Actor 模型应用. 官方网站 (http://akka.io/)的介绍是: Akka is a toolkit and runtime for buildi…

Actors Defining an actor class MyActor extends Actor { def receive = { } } In Scala, the receive block is actually a partial function, which allows the usage of pattern matching syntax. Creating actors Actor with default constructor 使用actorOf创建actor,…

Akka Akka是什么呢?直接引用Akka站点上面的描写叙述吧: Akka is a toolkit and runtime for building highly concurrent, distributed, and fault tolerant event-driven applications on the JVM. 反正我认为Akka是比較难上手的,并且文档对于新手来说,也不太友好.本文会用Akka写一个Hello World程序,从这个程序入手,介绍Akka的一些基本概念. he…

Awesome系列的Java资源整理.awesome-java 就是akullpp发起维护的Java资源列表,内容包括:构建工具.数据库.框架.模板.安全.代码分析.日志.第三方库.书籍.Java 站点等等. 经典的工具与库 (Ancients) In existence since the beginning of time and which will continue being used long after the hype has waned. Apache Ant - Build…

Awesome Big Data A curated list of awesome big data frameworks, resources and other awesomeness. Inspired byawesome-php, awesome-python, awesome-ruby, hadoopecosystemtable & big-data. Your contributions are always welcome! Awesome Big Data Frameworks…

Build Tool Tools which handle the buildcycle of an application. Apache Maven - Declarative build and dependency management which favors convention over configuration. It's preferable to Apache Ant which uses a rather procedural approach and can be di…

Awesome Java A curated list of awesome Java frameworks, libraries and software. Awesome Java Ancients Bean Mapping Build Bytecode Manipulation Cluster Management Code Analysis Code Coverage Compiler-compiler Configuration Constraint Satisfaction Prob…

https://github.com/onurakpolat/awesome-bigdata A curated list of awesome big data frameworks, resources and other awesomeness. Inspired by awesome-php, awesome-python, awesome-ruby, hadoopecosystemtable & big-data. Your contributions are always welco…

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具体见:https://github.com/thangchung/awesome-dotnet-core 半年前看到的,今天又看到了,记录下. 框架类: ZKWeb ABP General ASP.NET Core Documentation - The official ASP.NET Core documentation site. .NET Core Documentation - Home of the technical documentation for .NET Core, C#…

Designing fault tolerant systems is extremely difficult.  You can try to anticipate and reason about all of the things that can go wrong with your software and code defensively for these situations, but in a complex system it is very likely that some…

第一章.flink实时数仓入门 一.依赖 <!--Licensed to the Apache Software Foundation (ASF) under oneor more contributor license agreements. See the NOTICE filedistributed with this work for additional informationregarding copyright ownership. The ASF licenses this fi…

前言 Flink是大数据处理领域最近很火的一个开源的分布式.高性能的流式处理框架,其对数据的处理可以达到毫秒级别.本文以一个来自官网的WordCount例子为引,全面阐述flink的核心架构及执行流程,希望读者可以借此更加深入的理解Flink逻辑. 本文跳过了一些基本概念,如果对相关概念感到迷惑,请参考官网文档.另外在本文写作过程中,Flink正式发布了其1.5 RELEASE版本,在其发布之后完成的内容将按照1.5的实现来组织.   1.从 Hello,World WordCount开始 首先…

作者:Jack47 PS:如果喜欢我写的文章,欢迎关注我的微信公众账号程序员杰克,两边的文章会同步,也可以添加我的RSS订阅源. 本文主要翻译自Storm官方文档Guaranteeing message processing,但我觉得官方文档写的有些随意,啰嗦,所以做了一些修改,里面的配图自己重新画了,能够更加贴切的表达意思. 内容简介 Storm可以保证从Spout发出的每个消息都能被完全处理.Storm的可靠性机制是完全分布式的(distributed),可伸缩的(scalable),容错的…

This document is a starting point for users working with Hadoop Distributed File System (HDFS) either as a part of a Hadoop cluster or as a stand-alone general purpose distributed file system. While HDFS is designed to "just work" in many enviro…

关于 Solr Cloud Zookeeper 入门,介绍 原理 原封不动转自 http://wiki.apache.org/solr/SolrCloud/ ,文章的内存有些过时,但是了解原理. This page is outdated and you should read about SolrCloud at the Solr Reference Guide instead: https://cwiki.apache.org/confluence/display/solr/SolrClou…

Apache Flume 1.7.0 发布了,Flume 是一个分布式.可靠和高可用的服务,用于收集.聚合以及移动大量日志数据,使用一个简单灵活的架构,就流数据模型.这是一个可靠.容错的服务. 本次更新如下: 新特性 [FLUME-2498] - Implement Taildir Source 改进 [FLUME-1899] - Make SpoolDir work with Sub-Directories [FLUME-2526] - Build flume by jdk 7 in defa…

In order for the "you buildit, you break it" motto to be real, there are roles beyond the traditionaldeveloper that are necessary. Specifically, engineering roles that enable developersto do testing efficiently and effectively have to exist. At…

问题: 一个Qt小项目,编译成功并成功运行,但应用程序输出中出现如下异常:FTH: (9892): *** Fault tolerant heap shim applied to current process. This is usually due to previous crashes. *** 解决方法: 打开注册表,设置HKLM\Software\Microsoft\FTH\Enabled 为0 打开CMD,运行Rundll32.exe fthsvc.dll,FthSysprepSpe…

除Hadoop外的9个大数据技术: 1.Apache Flink 2.Apache Samza 3.Google Cloud Data Flow 4.StreamSets 5.Tensor Flow 6.Apache NiFi 7.Druid 8.LinkedIn WhereHows 9.Microsoft Cognitive Services Hadoop是大数据领域最流行的技术,但并非唯一.还有很多其他技术可用于解决大数据问题.除了Apache Hadoop外,另外9个大数据技术也是必须要了…

From stackoverflow.com When you use a web service you have a client and a server: If the server fails the client must take responsibility to handle the error. When the server is working again the client is responsible of resending it. If the server g…

参看https://github.com/hashicorp/consul-template#examples // This is the address of the Consul agent. By default, this is 127.0.0.1:8500, // which is the default bind and port for a local Consul agent. It is not // recommended that you communicate dire…

微软近期Open的职位: Job Title: Principal Development Lead Work Location: Suzhou, China This is a once in a lifetime opportunity - you've heard by now how Microsoft is 'all in' the cloud? And how we as a company are transforming ourselves and the industry by…

ON THE EVOLUTION OF MACHINE LEARNING: FROM LINEAR MODELS TO NEURAL NETWORKS We recently interviewed Reza Zadeh (@Reza_Zadeh). Reza is a Consulting Professor in the Institute for Computational and Mathematical Engineering at Stanford University and a…

All transformations in Flink may look like functions (in the functional processing terminology), but are in fact stateful operators. You can make every transformation (map, filter, etc) stateful by using Flink's state interface or checkpointing insta…

Example Program The following program is a complete, working example of streaming window word count application, that counts the words coming from a web socket in 5 second windows. public class WindowWordCount { public static void main(String[] args)…

工具介绍 官网 http://www.linkdata.se/sourcecode/memwatch/ 其功能如下官网介绍,挑选重点整理: 1. 号称功能: 内存泄露检测 (检测未释放内存, 即 动态内存开辟未释放的情况) 2. 检测 多次调用free, 和 free 错误地址 3. 检测内存访问的 上越界 和 下越界 4. 检测对野指针进行的写操作 其他内存检测工具有 mtrace valgrind 参考 http://www.cnblogs.com/honglihua8688/p/37279…