1. Add Partition Tool Partitions act as unit of parallelism. Messages of a single topic are distributed to multiple partitions that can be stored and served on different servers. Upon creation of a topic, the number of partitions for this topic has t…

最近在学习Visual Studio连接mysql EF模型.在nuget中安装mysql.data时总是提示The package 'MySql.Data' tried to add a framework reference to 'System.Runtime' which was not found in the GAC.当前mysql.data的版本是6.10.5,看描述是支持.net framework 4.5.2的.经过研究发现,把项目的.net framework 改为4.5可以…

The partition reassignment tool can be used to move some topics off of the current set of brokers to the newly added brokers. This is typically useful while expanding an existing cluster since it is easier to move entire topics to the new set of brok…

http://kafka.apache.org/ http://kafka.apache.org/downloads cd /root/kafuka/kafka_2.12-0.11.0.0 nohup bin/zookeeper-server-start.sh config/zookeeper.properties & nohup bin/kafka-server-start.sh config/server.properties & bin/kafka-topics.sh --creat…

一般对于数据库表的插入操作,我们都会写程序执行插入sql,插入的数据少还可以,如果数据多了.执行效率上可能就不太理想了.load data语句用于高速地从一个文本文件中读取数据,装载到一个表中,相比于前者效率会高很多.   参考 http://hunan.iteye.com/blog/752606 https://dev.mysql.com/doc/refman/5.6/en/load-data.html 以及mysql中文文档5.1整理如下,   语法 LOAD DATA [LOW_PRIOR…

http://technet.microsoft.com/en-us/library/cc756878(v=ws.10).aspx In this section Network Load Balancing Terms and Definitions Network Load Balancing Architecture Network Load Balancing Protocols Application Compatibility with Network Load Balancing…

14 July 2012 20:24 http://www.mikesdotnetting.com/article/192/transferring-data-between-asp-net-web-pages There are a huge number of articles and blog posts on persisting data between user requests in ASP.NET. However, the ASP.NET Web Pages framework…

When working with big data with R (say, using Spark and sparklyr) we have found it very convenient to keep data handles in a neat list ordata_frame. Please read on for our handy hints on keeping your data handles neat. When using R to work over a big…

Building the Unstructured Data Warehouse: Architecture, Analysis, and Design earn essential techniques from data warehouse legend Bill Inmon on how to build the reporting environment your business needs now! Answers for many valuable business questio…

Transferring Data Without Draining the Battery GET STARTED DEPENDENCIES AND PREREQUISITES Android 2.0 (API Level 5) or higher YOU SHOULD ALSO READ Optimizing Battery Life In this class you will learn to minimize the battery life impact of downloads a…