tickTime the basic time unit in milliseconds used by ZooKeeper. It is used to do heartbeats and the minimum session timeout will be twice the tickTime.
dataDir the location to store the in-memory database snapshots and, unless specified otherwise, the transaction log of updates to the database.
clientPort the port to listen for client connections
initLimit initLimit is timeouts ZooKeeper uses to limit the length of time the ZooKeeper servers in quorum have to connect to a leader.
syncLimit syncLimit limits how far out of date a server can be from a leader
server.1=localhost:2888:3888 # zk cluster
client connect to zk server:
zkCli -server server_ip:2181
#creates a new znode and associates the string "my_data" with the node
create /zk_test my_data
# list zk nodes
ls /
ls /abc/def
# get node_name detail info
get /node_name
get /node_name/sub_node
# set the data associated with node_name
set /node_name data
# delete the node
delete /node_name
