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NetChain: Scale-free sub-RTT coordination | the morning paper
And finally, here’s a TPC-C new order transaction workload which allowing testing transactions under different contention levels. By using NetChain as a lock server, the system can achieve orders of magnitude higher transaction throughput than ZooKeeper.
zookeeper  netchain  distributed  lock  coordination 
10 weeks ago by euler
Setting up Solr Cloud 6.3.0 with Zookeeper 3.4.6 – Amrit Sarkar – Medium
Apache Solr is an open-source scalable search platform capable of performing indexing, searching and analytical functionalities on a massive scale. It the ability to set up a cluster of Solr servers that combines fault tolerance and high availability.

For more info: https://cwiki.apache.org/confluence/display/solr/SolrCloud

ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

For more info: https://zookeeper.apache.org/
solr  tutorial  zookeeper 
11 weeks ago by skinna123
Service Discovery: Zookeeper vs etcd vs Consul | Technology Conversations
The more services we have, the bigger the chance for a conflict to occur if we are using predefined ports. After all, there can be no two services listening on the same port. Managing a tight list of all the ports used by, lets say, hundred services is a challenge in itself. Add to that…
consul  zookeeper  etcd 
march 2018 by shrike
Apache ZooKeeper Watcher 机制源码解释
分布式系统从根本上来说就是不同节点上的进程并发执行,并且相互之间对进程的行为进行协调处理的过程。不同节点上的进程互相协调行为的过程叫做分布式同步。许多分布式系统需要一个进程作为任务的协调者,执行一些其他进程并不执行的特殊的操作,一般情况下哪个进程担当任务的协调者都无所谓,但是必须有一个进程作为协调者,自动选举出一个协调者的过程就是分布式选举。ZooKeeper 正是为了解决这一系列问题而生的。上一篇我们介绍了 ZooKeeper 服务启动原理和源代码剖析,这一讲我们来谈谈 Watcher 机制,首先介绍一个监控示例,然后我们再来聊聊 Watcher 机制原理。
ZooKeeper  Apache 
march 2018 by yangushan

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