Viacheslav Rodionov bepcyc

## kafka-cheat-sheet.md

      
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                bepcyc
                / kafka-cheat-sheet.md
            
            
              Created
              September 22, 2018 15:40
                — forked from ursuad/kafka-cheat-sheet.md
            
              
                Quick command reference for Apache Kafka
              
          
    Kafka Topics

List existing topics

bin/kafka-topics.sh --zookeeper localhost:2181 --list
Describe a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic mytopic 
Purge a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic mytopic --config retention.ms=1000
... wait a minute ...

  
## wc_hdfs
#!/bin/bash

#set correct path
HADOOP_HOME="/usr/lib/hadoop"

condition=""
fs="\t"
words=""
lines=""
chars=""
	#!/bin/bash

	#set correct path
	HADOOP_HOME="/usr/lib/hadoop"

	condition=""
	fs="\t"
	words=""
	lines=""
	chars=""