kafka的安装

系统版本：Ubuntu 4.8.2-19ubuntu1

安装kafka版本：0.9.0.1

wget http://archive.apache.org/dist/kafka/0.9.0.1/kafka_2.11-0.9.0.1.tgz

tar -zxvf kafka_2.11-0.9.0.1.tgz

#进入目录
cd kafka_2.11-0.9.0.1/
#修改启动脚本
vim bin/kafka-server-start.sh 
==找到
export KAFKA_HEAP_OPTS="-Xmx1G -Xms1G"
==需要内存改小一点
export KAFKA_HEAP_OPTS="-Xmx256M -Xms128M"
==
#否则会报内存不足

Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000bae00000, 1073741824, 0) failed; error='Cannot allocate memory' (errno=12)
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (malloc) failed to allocate 1073741824 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /home/soft/kafka_2.11-0.9.0.1/hs_err_pid25902.log

#启动#注意要先启动zookeeper，并且如果不是2181默认端口要修改
sh bin/kafka-server-start.sh config/server.properties &

#kafka默认启动9092端口
telnet localhost 9092

sh bin/kafka-server-stop.sh