hadoop感知-阿里云

好程序员大数据学习路线分享Hadoop机架感知

　　好程序员大数据学习路线分享Hadoop机架感知，1.背景：Hadoop在设计时考虑到数据的安全与高效，数据文件默认在HDFS上存放三份，存储策略为本地一份，同机架内其它某一节点上一份，不同机架的某一节点上一份。这样如果本地数据损坏，节点可以从同一机架内的相邻节点拿到数据，速度肯定比从跨机架节点上...

大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第一阶段

33 课时 |

283 人已学 |

加入学习

大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第二阶段

28 课时 |

248 人已学 |

加入学习

大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第三阶段

25 课时 |

92 人已学 |

加入学习

Hadoop机架感知（rack-aware)配置指南

Hadoop机架感知（rack-aware)配置副本的存放策略又是HDFS实现高可靠性和搞性能的关键，优化的副本存放策略也正是HDFS区分于其他大部分分布式文件系统的重要特性。HDFS采用一种称为机架感知（rack-aware）的策略来改进数据的可靠性、可用性和网络带宽的利用率。大型HDFS实例一...

Hadoop机架感知与balancer

版本：Apache Hadoop 1.0.3 Hadoop集群节点通常会跨很多个机架，增加节点的情况时有发生，而且很多时候节点的磁盘容量还不统一，有大有小，所以集群节点非常容易出现磁盘利用不平衡的情况，一些节点的磁盘快用光了，另外一些节点磁盘容量还剩余很多。这会导致一些问题，首先是一些机器磁盘读写很...

datenode节点超时时间设置，Hadoop启动不正常,HDFS冗余数据块的自动删除,NameNode安全模式问题,ntp时间服务同步,机架感知配置

1.Hadoop datanode节点超时时间设置 datanode进程死亡或者网络故障造成datanode无法与namenode通信，namenode不会立即把该节点判定为死亡，要经过一段时间，这段时间暂称作超时时长。HDFS默认的超时时长为10分钟+30秒。如果定义超时时间为timeout，则超...

【Hadoop Summit Tokyo 2016】Apache Storm中的资源感知调度

本讲义出自Jerry Peng在Hadoop Summit Tokyo 2016上的演讲，主要介绍了Apache Storm的相关知识内容、目前遇到的挑战和问题并且对于资源感知调度器进行了详细介绍。

共有6条

< 1 >

跳转至： GO

更新时间 2024-03-23 12:33:49

本页面内关键词为智能算法引擎基于机器学习所生成，如有任何问题，可在页面下方点击"联系我们"与我们沟通。

产品推荐

{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":2,"count":2}]},"card":[{"des":"基于阿里云 E-MapReduce 、OSS 、边缘网络加速等产品及服务，帮助自建 Hadoop 用户快速构建云上半托管开源大数据平台，帮助客户更加便捷地迭代企业大数据平台架构，聚焦业务价值开发。","link1":"https://www.aliyun.com/solution/growth-service/slemr","link":"https://www.aliyun.com/solution/growth-service/slemr","icon":"https://img.alicdn.com/imgextra/i4/O1CN01K9Svmd1sBvo2u5PKn_!!6000000005729-2-tps-201-200.png","btn2":"立即咨询","tip":"更多优质解决方案 <a href=\"https://www.aliyun.com/solution/all \" target=\"_blank\"> 立即查看 <a href=\"https://page.aliyun.com/form/act1851795571/index.htm\" target=\"_blank\">立即咨询","btn1":"方案详情","link2":"https://www.aliyun.com/core/online-consult?from=F9OmJ488XR","title":"中小企业自建Hadoop集群上云解决方案"}],"search":[{"txt":"企业跨地域网络互通","link":"https://www.aliyun.com/solution/growth-general/slcrossregionnetwork"},{"link":"https://www.aliyun.com/solution/growth-general/slhhyxsxxsh","txt":"混合云线下线上双活"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","iconImg":"https://img.alicdn.com/imgextra/i1/O1CN014XEWEW1hMVB3Ydp04_!!6000000004263-0-tps-200-200.jpg","btn1":"方案详情","btn3":"查看更多方案","btn2":"立即咨询","link3":"https://www.aliyun.com/solution/all","link2":"https://www.aliyun.com/core/online-consult?from=F9OmJ488XR","link":"https://www.aliyun.com/solution/growth-service/slemr","contentLink":"https://www.aliyun.com/solution/growth-service/slemr","link1":"https://www.aliyun.com/solution/growth-service/slemr","title":"中小企业自建Hadoop集群上云解决方案","des":"基于阿里云 E-MapReduce 、OSS 、边缘网络加速等产品及服务，帮助自建 Hadoop 用户快速构建云上半托管开源大数据平台，帮助客户更加便捷地迭代企业大数据平台架构，聚焦业务价值开发。","infoGroup":[{"infoName":"推荐搜索","infoContent":{"firstContentName":"企业跨地域网络互通","firstContentLink":"https://www.aliyun.com/solution/growth-general/slcrossregionnetwork","lastContentName":"混合云线下线上双活","lastContentLink":"https://www.aliyun.com/solution/growth-general/slhhyxsxxsh"}}]}]}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":2,"count":2}]},"card":[{"des":"基于阿里云 E-MapReduce 、OSS 、边缘网络加速等产品及服务，帮助自建 Hadoop 用户快速构建云上半托管开源大数据平台，帮助客户更加便捷地迭代企业大数据平台架构，聚焦业务价值开发。","link1":"https://www.aliyun.com/solution/growth-service/slemr","link":"https://www.aliyun.com/solution/growth-service/slemr","icon":"https://img.alicdn.com/imgextra/i4/O1CN01K9Svmd1sBvo2u5PKn_!!6000000005729-2-tps-201-200.png","btn2":"立即咨询","tip":"更多优质解决方案 <a href=\"https://www.aliyun.com/solution/all \" target=\"_blank\"> 立即查看 <a href=\"https://page.aliyun.com/form/act1851795571/index.htm\" target=\"_blank\">立即咨询","btn1":"方案详情","link2":"https://www.aliyun.com/core/online-consult?from=F9OmJ488XR","title":"中小企业自建Hadoop集群上云解决方案"}],"search":[{"txt":"企业跨地域网络互通","link":"https://www.aliyun.com/solution/growth-general/slcrossregionnetwork"},{"link":"https://www.aliyun.com/solution/growth-general/slhhyxsxxsh","txt":"混合云线下线上双活"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","iconImg":"https://img.alicdn.com/imgextra/i1/O1CN014XEWEW1hMVB3Ydp04_!!6000000004263-0-tps-200-200.jpg","btn1":"方案详情","btn3":"查看更多方案","btn2":"立即咨询","link3":"https://www.aliyun.com/solution/all","link2":"https://www.aliyun.com/core/online-consult?from=F9OmJ488XR","link":"https://www.aliyun.com/solution/growth-service/slemr","contentLink":"https://www.aliyun.com/solution/growth-service/slemr","link1":"https://www.aliyun.com/solution/growth-service/slemr","title":"中小企业自建Hadoop集群上云解决方案","des":"基于阿里云 E-MapReduce 、OSS 、边缘网络加速等产品及服务，帮助自建 Hadoop 用户快速构建云上半托管开源大数据平台，帮助客户更加便捷地迭代企业大数据平台架构，聚焦业务价值开发。","infoGroup":[{"infoName":"推荐搜索","infoContent":{"firstContentName":"企业跨地域网络互通","firstContentLink":"https://www.aliyun.com/solution/growth-general/slcrossregionnetwork","lastContentName":"混合云线下线上双活","lastContentLink":"https://www.aliyun.com/solution/growth-general/slhhyxsxxsh"}}]}]}}