ZooKeeper ZooKeeper: A Distributed Coordination Service for Distributed Applications (针对分布式应用的分布式调度服务) Design Goals(设计目标) Data model and the hierarchical namespace(数据模型和命名空间层级) Nodes and ephemeral nodes(节点和临时节点) Conditional updates and watches(条件更新和观…
ZooKeeper: A Distributed Coordination Service for Distributed Applications ZooKeeper is a distributed, open-source coordination service for distributed applications. It exposes a simple set of primitives that distributed applications can build upon t…
参考,https://cwiki.apache.org/confluence/display/KAFKA/kafka+Detailed+Replication+Design+V3 Major changes compared with the v2 proposal. 最大的不同在于加入Controller,简化partition的leader electing并且除了将改动更新到ZK上以外,controller会通过ControllerChannelManager直接和brokers通信,以提…
老李分享: Oracle Performance Tuning Overview 翻译 poptest是国内唯一一家培养测试开发工程师的培训机构,以学员能胜任自动化测试,性能测试,测试工具开发等工作为目标.如果对课程感兴趣,请大家咨询qq:908821478,咨询电话010-84505200. 1 性能优化概述 This chapter provides an introduction toperformance tuning and contains the following secti…