在CentOS6.9中搭建 Zookeeper

tar -zxvf zookeeper-3.4.9.tar.gz

cd zookeeper-3.4.9
cp conf/zoo_sample.cfg conf/zoo.cfg

# The number of milliseconds of each tick 
tickTime=2000 
# The number of ticks that the initial  
# synchronization phase can take 
initLimit=10 
# The number of ticks that can pass between  
# sending a request and getting an acknowledgement 
syncLimit=5 
# the directory where the snapshot is stored. 
# do not use /tmp for storage, /tmp here is just  
# example sakes. 
dataDir=/home/bigdata/software/zookeeper-3.4.9/zookeeper_data 
# the port at which the clients will connect 
clientPort=2181 
# The number of snapshots to retain in dataDir 
autopurge.snapRetainCount=5 
# Purge task interval in hours 
autopurge.purgeInterval=1 

bin/zkServer.sh start

yum install nc 

echo ruok | nc master 2181