ZK Configuration Notes

[Email protected]_centos_6 ~]# cd/home/downloads/zookeeper-3.4.6

[Email protected]_centos_6 zookeeper-3.4.6]# CD conf

[Email protected]_centos_6 conf]# Cat Zk1.cfg

ticktime=2000

initlimit=10

Synclimit=5

Datadir=/home/apache/zoo/zk1

clientport=2181

server.1=10.6.212.188:2888:3888

server.2=10.6.212.188:2889:3889

server.3=10.6.212.188:2890:3890

[Email protected]_centos_6 conf]# Cat Zk2.cfg

ticktime=2000

initlimit=10

Synclimit=5

Datadir=/home/apache/zoo/zk2

clientport=2182

server.1=10.6.212.188:2888:3888

server.2=10.6.212.188:2889:3889

server.3=10.6.212.188:2890:3890

[Email protected]_centos_6 conf]# Cat Zk3.cfg

ticktime=2000

initlimit=10

Synclimit=5

Datadir=/home/apache/zoo/zk3

clientport=2183

server.1=10.6.212.188:2888:3888

server.2=10.6.212.188:2889:3889

server.3=10.6.212.188:2890:3890

[[Email protected]_centos_6 conf]# ls

Configuration.xsl log4j.properties zk1.cfg zk2.cfg zk3.cfg _zoo.cfg zoo_sample.cfg

[Email protected]_centos_6 conf]# tree/home/apache/zoo/

/home/apache/zoo/

├──zk1

│├──myid

│└──version-2

│├──acceptedepoch

│├──currentepoch

│├──log.100000001

│└──snapshot.0

├──zk2

│├──myid

│└──version-2

│├──acceptedepoch

│├──currentepoch

│└──log.100000001

└──zk3

├──myid

└──version-2

├──acceptedepoch

├──currentepoch

├──log.100000001

└──snapshot.100000000

6 Directories, files

[[Email Protected]_centos_6 conf]#

Start three zookeeper servers:

bin/zkserver.sh Start Conf/zk1.cfg

bin/zkserver.sh Start Conf/zk2.cfg

bin/zkserver.sh Start Conf/zk3.cfg

See zookeeper who is leader who is Follewer:

bin/zkserver.sh Status Conf/zk1.cfg

JMX enabled by default

Using config:conf/zk1.cfg

Mode:follower

bin/zkserver.sh Status Conf/zk2.cfg

JMX enabled by default

Using config:conf/zk2.cfg

Mode:leader

bin/zkserver.sh Status Conf/zk3.cfg

JMX enabled by default

Using config:conf/zk3.cfg

Mode:follower

It's obvious that 2 is leader.

ZK Configuration Notes