—思维导图：

zookeep使用1：

zookeeper报错：ERROR [main:QuorumPeerMain@86] - Invalid config, exiting abnormally org.apache.zookeeper.server.quorum.QuorumPeerConfig$ConfigException: Address unresolved: node01:3888
问题描述
启动zookeeper时，感觉一切正常，但是通过zkServer.sh status查看状态时，发现报错：
Error contacting service. It is probably not running.
通过查看 zk/logs下的文件，发现有如下报错：
ERROR [main:QuorumPeerMain@86] - Invalid config, exiting abnormally org.apache.zookeeper.server.quorum.QuorumPeerConfig$ConfigException: Address unresolved: node01:3888 at org.apache.zookeeper.server.quorum.QuorumPeer$QuorumServer.(QuorumPeer.java:242) at org.apache.zookeeper.server.quorum.flexible.QuorumMaj.(QuorumMaj.java:89)
错误原因
在配置zoo.cfg文件时候，端口号后面还有空格。因为是从其他地方复制的，所以不容易发现
server.0=spark1:2888:3888(此处有空格) server.1=spark2:2888:3888 server.2=spark3:2888:3888