https://zookeeper.apache.org/releases.html
https://www.apache.org/dyn/closer.lua/zookeeper/zookeeper-3.8.5/apache-zookeeper-3.8.5-bin.tar.gz
https://dlcdn.apache.org/zookeeper/zookeeper-3.8.5/apache-zookeeper-3.8.5-bin.tar.gz
wget https://dlcdn.apache.org/zookeeper/zookeeper-3.8.5/apache-zookeeper-3.8.5-bin.tar.gz
tar -zxvf apache-zookeeper-3.8.5-bin.tar.gz
mv apache-zookeeper-3.8.5-bin zookeeper
cp conf/zoo_sample.cfg conf/zoo.cfg
zoo.cfg
# 每一个 tick 间隔时间（毫秒）
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=/tmp/zookeeper
# 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.
#
# https://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
admin.enableServer=true
admin.serverPort=8888
#
# 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
## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpHost=0.0.0.0
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true
./bin/zkServer.sh version
./bin/zkServer.sh --config ./conf start
./bin/zkServer.sh --config ./conf stop