http://andyhan.net/index.php/sys-adm/item/291-hbase-replication http://shitouer.cn/2013/04/hbase-multi-master-setup/ https://azure.microsoft.com/en-us/documentation/articles/hdinsight-hbase-geo-replication/?rnd=1…

17.1.1.8?Setting Up Replication with Existing Data设置复制使用存在的数据 当设置复制使用存在的数据,你需要确定如何最好的从master 得到数据到slave 在开始复制服务前: 基本的过程对于设置复制使用存在的数据如下: 1. 在MySQL master 运行时,创建一个用户被slave使用 当连接到Master 在复制期间 2.如果你没有配置server-id和启动binary logging 在master server上,你需要关闭它来配置…

摘要: 大型数据中心通过边界上的网关对每个传入的数据包执行一系列的网络功能,例如,ACL被部署来阻止不合格的流量,而速率限制被用于防止供应商过度使用带宽,但是由于流量的规模巨大,给网关的设计和部署带来了很大的挑战. 可选的解决方案有软件与硬件两种. 软件方面:NFV提供了高级处理和存储能力,简化了添加新功能的过程,但是最先进的NFV平台也只能支持10∼40Gbps,为了处理Tbps的流量需要部署十台至上百台服务器,以这种成本去部署不仅成本过高,也不利于日常的操作和维护. 硬件方面:近年来提出的可…

ACID 在传数据库系统中,事务具有ACID 4个属性. (1) 原子性(Atomicity):事务是一个原子操作单元,其对数据的修改,要么全都执行,要么全都不执行. (2) 一致性(Consistent):在事务开始和完成时,数据都必须保持一致状态.这意味着所有相关的数据规则都必须应用于事务的修改,以保持数据的完整性:事务结束时,所有的内部数据结构(如B树索引或双向链表)也都必须是正确的. (3) 隔离性(Isolation):数据库系统提供一定的隔离机制,保证事务在不受外部并发操作影响的“独…

August 27, 2012 By Vladan SEGET This new backup product replaces VMware Data Recovery, which has been introduced in vSphere 4.0 and which will still be supported. But from vSphere 5.1 the vSphere Data Protection (VDP) is going to be The Backup produc…

http://www.windowsazure.com/en-us/develop/net/fundamentals/cloud-storage/ Managing and analyzing data in the cloud is just as important as it is anywhere else. To let you do this, Windows Azure provides a range of technologies for working with relati…

E. Data Center Maintenance time limit per test 1 second memory limit per test 512 megabytes input standard input output standard output BigData Inc. is a corporation that has n data centers indexed from 1 to n that are located all over the world. The…

转自: http://www.confluent.io/blog/stream-data-platform-1/ These days you hear a lot about "stream processing", "event data", and "real-time", often related to technologies like Kafka, Storm, Samza, or Spark's Streaming module.…

https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/HdfsDesign.html Introduction [相对于POSIX,放宽要求] The Hadoop Distributed File System (HDFS) is a distributed file system designed to run on commodity hardware. It has many similarities…

https://hadoop.apache.org/docs/r1.2.1/hdfs_design.html Introduction The Hadoop Distributed File System (HDFS) is a distributed file system designed to run on commodity hardware. It has many similarities with existing distributed file systems. However…