kafka安装使用和遇到的坑

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下载安装

参考：https://segmentfault.com/a/1190000012730949

https://kafka.apache.org/quickstart

关闭服务

关闭zookeeper bin/zookeeper-server-stop.sh

关闭kafka bin/kafka-server-stop.sh

遇到的坑

问题1

[2018-04-08 11:20:32,999] WARN Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (org.apache.zookeeper.ClientCnxn)

java.net.ConnectException: Connection refused

	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)

	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744)

	at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)

	at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)

上面问题说明无法连接到zookeeper服务中，原因是没有启动zk，或者启动zk后又关闭了