QYHuiiQ

下载zookeeper：https://archive.apache.org/dist/zookeeper/之前已经搭建好了三台hadoop集群（https://blog.youkuaiyun.com/QYHuiiQ/article/details/123055389?spm=1001.2014.3001.5502），这里我们在这三台机器上都执行以下步骤安装zookeeper。解压：[root@hadoop01 wyh]# tar -zxvf apache-zookeeper-3.6.3.tar.gz.

在启动zookeeper时报如下错误：[root@hadoop02 bin]# ./zkServer.sh statusZooKeeper JMX enabled by defaultUsing config: /usr/local/wyh/zookeeper-3.4.10/bin/../conf/zoo.cfgError contacting service. It is probably not running.查看bin目录下的zookeeper.out中的信息：经过仔细检查

在启动zookeeper时启动不成功，查看log发现会报如下错误：ERROR [main:QuorumPeer@648] - Unable to load database on disk.....java.lang.RuntimeException: Unable to run quorum server解决方法是，找到zoo.cfg，查看里面的dataDir和logdatadir，这两个配置对应的目录，进入到这两个目录下，将version目录mv为其他名字，比如version.bak即可，