Abstract 互联网应用通常会产生大量的时间日志需要进行分析和处理.本文介绍Ubiq的架构,它是一个分布式系统,用于处理不断增长的日志文件,具有可扩展性.高可用.低延迟的特性.Ubiq框架容忍基础设施退化和数据中心级别的中断问题,无需人工干预.并且它支持exactly-once语义以将日志作为事件的集合进行处理.Ubiq已经应用于Google的广告系统多年,生产环境证明了机器资源的线性可扩展性,以及基础设置故障的情况下的高可用性和一分钟内的端到端的延迟. 1. Introduction 当今…

服务在通常项目中总是要用到的C#的webservice.wcf,还有第三方的,比如java服务.一般来说调用都不会有什么问题,因为服务的标准都是一样的.要注意的就是:1.参数个数匹配:2.参数类型和返回类型匹配.本人在刚开始使用java服务时总是会遇到一个问题,就是:返回Fault occurred while processing异常.使用也完全是按照调用C#服务一样,但是也报异常. 对于这个异常,要注意两点:1.参数是否都赋值了.可为null的就无所谓了,其他的一定要赋值.而且,你会发现C#…

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.…

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…

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…

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…

Written by Felix Müller and Mike Winters on Jun 12 2018 in the Inside Zeebe category. In the past few weeks, we’ve mentioned Zeebe’s performance in horizontal scalability benchmarks that we run internally, but we haven’t yet explained how exactly we…

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…

Ewen Cheslack-Postava  March 25, 2015  时间有点久,但讲的还是很清楚的 As part of Confluent Platform 1.0 released about a month ago, we included a new Kafka REST Proxy to allow more flexibility for developers and to significantly broaden the number of systems and la…

This is a guest repost by Leandro Moreira. When we usually are interested about scalability we look for links, explanations, books, and references. This mini article links to the references I think might help you in this journey. DISCLAIMER: You don’…

微软近期Open的职位: Bing Index Serve team is hiring! We are one of the core teams in Bing serving more than 30% of worldwide search traffic with gigantic scale and fast response! The underlying service needs to be unimaginably fast, and it needs to be rock-…

solr介绍 来自官网http://lucene.apache.org/solr/解释: Solr is highly reliable, scalable and fault tolerant, providing distributed indexing, replication and load-balanced querying, automated failover and recovery, centralized configuration and more. Solr power…

solr是什么? 翻译: SolrTM is the popular, blazing fast open source enterprise search platform from the Apache LuceneTM project. Its major features include powerful full-text search, hit highlighting, faceted search, near real-time indexing, dynamic cluster…

Introduction This chapter will present an implementation recipe for an enterprise log storage and a search and analysis solution based on the Storm processor. Log data processing isn't necessarily a problem that needs solving again; it is, however, a…

http://highlyscalable.wordpress.com/2013/08/20/in-stream-big-data-processing/   Overview In recent years, this idea got a lot of traction and a whole bunch of solutions like Twitter's Storm, Yahoo's S4, Cloudera's Impala, Apache Spark, and Apache Tez…

http://engineering.linkedin.com/data-streams/apache-samza-linkedins-real-time-stream-processing-framework http://samza.incubator.apache.org/ 前两年一直在使用Kafka, 虽说Kafka一直说可用于online分析, 但是实际在使用的时候会发现问题很多, 比如deploy, 调度, failover等, 我们也做了一些相应的工作 Samza算是把这个补全了,…

BACKGROUND The present invention relates to video processing systems. Advances in imaging technology have led to high resolution cameras for personal use as well as professional use. Personal uses include digital cameras and camcorders that can captu…

As mentioned in the previous post, in my quest to find an alternative to Kiwi Syslog, I looked at a few Software as a Service (SaaS) offerings first, and then started exploring open source log managment projects. I compiled the list below of all usef…

.NET for Spark可用于处理成批数据.实时流.机器学习和ad-hoc查询.在这篇博客文章中,我们将探讨如何使用.NET for Spark执行一个非常流行的大数据任务,即日志分析. 1 什么是日志分析? 日志分析的目标是从这些日志中获得有关工具或服务的活动和性能的有意义的见解.NET for Spark使我们能够快速高效地分析从兆字节到千兆字节的日志数据! 在这篇文章中,我们将分析一组Apache日志条目,这些条目表示用户如何与web服务器上的内容交互.您可以在这里查看Apache日志…

Open source and free log analysis and log management tools. Maintained by Dr. Anton Chuvakin Version 1 created 3/3/2010 Version 1.1 updated 4/15/2010 Version 1.2 updated 10/1/2010 Version 1.3 updated 3/3/2011 This page lists a few popular free open-s…

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…

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…

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…

Introduction Apache Kafka is a distributed publish-subscribe messaging system. It was originally developed at LinkedIn Corporation and later on became a part of Apache project. Kafka is a fast, scalable, distributed in nature by its design, partition…

HDFS Users Guide Purpose Overview Prerequisites Web Interface Shell Commands DFSAdmin Command Secondary NameNode Checkpoint Node Backup Node Import Checkpoint Rebalancer Rack Awareness Safemode fsck fetchdt Recovery Mode Upgrade and Rollback File Per…

A curated list of awesome Go frameworks, libraries and software. Inspired by awesome-python. Contributing Please take a quick gander at the contribution guidelines first. Thanks to all contributors; you rock! If you see a package or project here that…

https://www.quora.com/How-do-I-learn-machine-learning-1?redirected_qid=6578644   How Can I Learn X? Learning Machine Learning Learning About Computer Science Educational Resources Advice Artificial Intelligence How-to Question Learning New Things Lea…

转自:https://zeebe.io/what-is-zeebe/ Zeebe is a workflow engine for microservices orchestration. This write-up will help you understand exactly what Zeebe is and how it might be relevant to you. We’ll start with a short introduction of Zeebe and the pr…