zookeeper pseudo cluster installation

# Download archive

wget https://archive.apache.org/dist/zookeeper/zookeeper-3.5.5/apache-zookeeper-3.5.5-bin.tar.gz

# Unzip to a specific directory

tar -xzvf apache-zookeeper-3.5.5-bin.tar.gz -C $install_dir

# Copy the configuration file

cp $install_dir/conf/zoo_sample.cfg zk1.cfg
cp $install_dir/conf/zoo_sample.cfg zk2.cfg
cp $install_dir/conf/zoo_sample.cfg zk3.cfg

# Modify the configuration file

## zk1.cfg

tickTime=2000
initLimit=10
syncLimit=5
dataDir=....../data/2181
dataLogDir=....../log/2181
clientPort=2181
#maxClientCnxns=60
#autopurge.purgeInterval=1
server.1=127.0.0.1:2181:3881
server.2=127.0.0.1:2182:3882
server.3=127.0.0.1:2183:3883

## zk2.cfg

tickTime=2000
initLimit=10
syncLimit=5
dataDir=....../data/2182
dataLogDir=....../log/2182
clientPort=2182
#maxClientCnxns=60
#autopurge.purgeInterval=1
server.1=127.0.0.1:2181:3881
server.2=127.0.0.1:2182:3882
server.3=127.0.0.1:2183:3883

## zk3.cfg

tickTime=2000
initLimit=10
syncLimit=5
dataDir=....../data/2183
dataLogDir=....../log/2183
clientPort=2183
#maxClientCnxns=60
#autopurge.purgeInterval=1
server.1=127.0.0.1:2181:3881
server.2=127.0.0.1:2182:3882
server.3=127.0.0.1:2183:3883

# Create a file myid

echo 1 > ....../data/2181/myid
echo 2 > ....../data/2182/myid
echo 3 > ....../data/2183/myid

# Enable pseudo cluster

$install_dir/bin/zkServer.sh start zk1.cfg
$install_dir/bin/zkServer.sh start zk2.cfg
$install_dir/bin/zkServer.sh start zk3.cfg