Zoeeper运维实践手册.pdf

Zookeeper运维实践⼿册

Zookeeper是⼀个⾼可⽤的分布式数据管理与协调框架，该框架能很好地保证分布式环境中数据⼀致性。⼀般⽤来实现服务发现(类似

DNS)，配置管理，分布式锁，leader选举等。

⼀、⽣产环境中Zookeeper安装部署规范

⽣产环境建议zookeeper⾄少为三台集群，统⼀安装配置，版本号为近期新版本，⽐如版本为3.4.8

部署路径：/opt/业务模块名/zookeeper

配置⽂件：/opt/业务模块名/zookeeper/conf/zoo.cfg

存储快照⽂件snapshot的⽬录：/opt/业务模块名/zookeeper/data

事务⽇志输出⽬录：/var/log/业务模块名/zookeeper

运⾏⽇志输出⽬录：/var/log/业务模块名/zookeeper

Zookeeper所有端⼝需要提前开通防⽕墙⼊站规则

对外服务端⼝：默认2181，可⾃定义

通信端⼝：2888，可⾃定义

选举端⼝：3888，可⾃定义

autoperge默认关闭，建议⾃⾏编写脚本在业务低⾕期清理快照和事务⽇志

查询状态：sh/opt/业务模块名/zookeeper/zkServer.shstatus

启动服务：sh/opt/业务模块名/zookeeper/zkServer.shstart

停⽌服务：sh/opt/业务模块名/zookeeper/zkServer.shstop

配置⽂件conf/zoo.cfg⽰例如下:

#Thenumberofmillisecondsofeachtick

tickTime=2000

#Thenumberofticksthattheinitial

#synchronizationphasecantake

initLimit=10

#Thenumberofticksthatcanpassbetween

#sendingarequestandgettinganacknowledgement

syncLimit=5

#thedirectorywherethesnapshotisstored.

#donotuse/tmpforstorage,/tmphereisjust

#examplesakes.

dataDir=/opt/kevintest/zookeeper_22181/data

#theportatwhichtheclientswillconnect

clientPort=22181

#themaximumnumberofclientconnections.

#increasethisifyouneedtohandlemoreclients

#maxClientCnxns=60

#

#Besuretoreadthemaintenancesectionofthe

#administratorguidebeforeturningonautopurge.

#

#

#

#ThenumberofsnapshotstoretainindataDir

#autopurge.snapRetainCount=3

#Purgetaskintervalinhours

#Setto0todisableautopurgefeature

#autopurge.purgeInterval=1

dataLogDir=/var/log/kevintest/zookeeper_22181

server.1=192.168.10.91:22888:23888

server.2=192.168.10.91:22988:23988

server.3=192.168.10.92:22888:23888

conf/log4j.properties配置⽰例如下:

#Definesomedefaultvaluesthatcanbeoverriddenbysystemproperties

zookeeper.root.logger=INFO,ROLLINGFILE

zookeeper.console.threshold=INFO

zookeeper.log.dir=.

zookeeper.log.file=zookeeper.log

zookeeper.