This is a common question asked by many Kafka users. The goal of this post is to explain a few important determining factors and provide a few simple formulas. More Partitions Lead to Higher Throughput The first thing to understand is that a topic pa…

How to choose the number oftopics/partitions in a Kafka cluster? 如何为一个kafka集群选择topics/partitions的数量? This is a common question asked by many Kafka users.The goal of this post is to explain a few important determining factors andprovide a few simple f…

动态分区数太大的问题:[Fatal Error] Operator FS_2 (id=2): Number of dynamic partitions exceeded hive.exec.max.dynamic.partitions.pernode. hive> insert into table sogouq_test partition(query_time) select user_id,query_word,query_order,click_order,url,query_time…

转自:http://blog.csdn.net/stark_summer/article/details/50203133 上一篇文章介绍了Kafka在设计上是如何来保证高时效.大吞吐量的,主要的内容集中在底层原理和架构上,属于理论知识范畴.这次我们站在应用和运维的角度,聊一聊集群到位后要怎么才能最好的配置参数和进行测试性能.Kafka的配置详尽且复杂,想要进行全面的性能调优需要掌握大量信息,我也只是通过工作中的一些实战经验来筛选出对集群性能影响最大的几个要点,接下来要阐述的观点也仅限于我所描述…

kafka topic的制定,我们要考虑的问题有很多,比如生产环境中用几备份.partition数目多少合适.用几台机器支撑数据量,这些方面如何去考量?笔者根据实际的维护经验,写一些思考,希望大家指正. 1.replicas数目 可以从上图看到,备份越多,性能越低,因为kafka的写入只写入主分区,备份相当于消费者从主分区pull数据,这样势必会造成性能的损耗,故建议在生产环境中使用一主一备即可. 2. partition数量 (1)设置partition数量的时候我们需要注意:kafka的pa…

https://engineering.linkedin.com/kafka/running-kafka-scale If data is the lifeblood of high technology, Apache Kafka is the circulatory system in use at LinkedIn. We use Kafka for moving every type of data around between systems, and it touches virtu…

1. Topic Models Topic models are based upon the idea that documents are mixtures of topics, where a topic is a probabilistic distribution over words. A topic model is a generative model for documents: it specifies a simple probabilistic procedure by…

This is intended to be an easy to understand FAQ on the topic of Kafka. One part is for beginners, one for advanced users and use cases. We hope you find it fruitful. If you are missing a question, please send it to your favorite Cloudera representat…

If you see a package or project here that is no longer maintained or is not a good fit, please submit a pull request to improve this file. Thank you! Contents Awesome Go Audio and Music Authentication and OAuth Command Line Configuration Continuous I…

Awesome Go      financial support to Awesome Go A curated list of awesome Go frameworks, libraries and software. Inspired by awesome-python. Contributing Please take a quick gander at the contribution guidelines first. Thanks to all contributors; you…