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kafka的topic命名技巧

 

  不多说,直接上干货!

 

 

       比如,我们给kafka的topic命名为user_r2p10

    表示user这个topic的副本因子(r)是2,分区数(p)是10。

    这样后期在写消费者代码的时候,根据topic名称就知道分区有多少个,可以很方便的设置多少个消费者线程。

 

 

 

  比如,如下

 

  前期博客,见

Kafka的3节点集群详细启动步骤(Zookeeper是外装)

 

 

  然后,

  创建topic

[hadoop@master kafka_2.10-0.9.0.1]$ pwd
/home/hadoop/app/kafka_2.10-0.9.0.1
[hadoop@master kafka_2.10-0.9.0.1]$ ll
total 128
drwxr-xr-x 3 hadoop hadoop  4096 Jul 27 17:56 bin
drwxr-xr-x 2 hadoop hadoop  4096 Jul 27 19:16 config
-rw-rw-r-- 1 hadoop hadoop 19520 Jul 28 19:57 kafka.log
drwxr-xr-x 2 hadoop hadoop  4096 Jul 27 17:26 libs
-rw-r--r-- 1 hadoop hadoop 11358 Feb 12  2016 LICENSE
drwxrwxr-x 2 hadoop hadoop  4096 Jul 28 19:56 logs
-rw------- 1 hadoop hadoop 67054 Jul 27 23:28 nohup.out
-rw-r--r-- 1 hadoop hadoop   162 Feb 12  2016 NOTICE
drwxr-xr-x 2 hadoop hadoop  4096 Feb 12  2016 site-docs
[hadoop@master kafka_2.10-0.9.0.1]$ bin/kafka-topics.sh --zookeeper master:2181,slave1:2181,slave2:2181 --create --topic gold_log_r2p5 --replication-factor 2 --partitions 5
WARNING: Due to limitations in metric names, topics with a period ('.') or underscore ('_') could collide. To avoid issues it is best to use either, but not both.
Created topic "gold_log_r2p5".
[hadoop@master kafka_2.10-0.9.0.1]$ 
[hadoop@master kafka_2.10-0.9.0.1]$ 

 

posted @ 2017-07-27 19:35  大数据和AI躺过的坑  阅读(12852)  评论(0编辑  收藏  举报