zookerper總結

安裝

解壓zookeeper-3.4.13.tar.gz ，配置環境變量

配置

conf/zoo.cfg配置：

# 時間單元，其餘的時間都是以此爲單元
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=/root/javaApp/zookeeper-3.4.13/dataDir
dataLogDir=/root/javaApp/zookeeper-3.4.13/dataLogDir
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

開啓 ./zkServer.sh

打開命令行 ./zkCli.sh

cZxid = 0x0    節點id
ctime = Thu Jan 01 08:00:00 CST 1970  節點建立時間
mZxid = 0x0      節點修改的id
mtime = Thu Jan 01 08:00:00 CST 1970節點修改時間
pZxid = 0x0            子節點id
cversion = -1        子節點版本
dataVersion = 0   此節點數據版本
aclVersion = 0    權限的版本
ephemeralOwner = 0x0    是0x0是永久節點，不是0x0就是臨時節點
dataLength = 0     數據長度
numChildren = 1   子節點數量