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    install Zookeeper Configuration Center

    zookeeper register center client version: dubbo-2.3.3 and above1

    Dubbo changes nothing of Zookeeper’s server side, an original Zookeeper server is fine. All change happens while calling Zookeeper’s client side

    install:

    wget http://archive.apache.org/dist/zookeeper/zookeeper-3.3.3/zookeeper-3.3.3.tar.gz
tar zxvf zookeeper-3.3.3.tar.gz
cd zookeeper-3.3.3
cp conf/zoo_sample.cfg conf/zoo.cfg

    configuration:

    vi conf/zoo.cfg

    If cluster is not needed, the content of zoo.cfg is as below 2:

    tickTime=2000
initLimit=10
syncLimit=5
dataDir=/home/dubbo/zookeeper-3.3.3/data
clientPort=2181

    If cluster is needed, the content of zoo.cfg is as below 3:

    tickTime=2000
initLimit=10
syncLimit=5
dataDir=/home/dubbo/zookeeper-3.3.3/data
clientPort=2181
server.1=10.20.153.10:2555:3555
server.2=10.20.153.11:2555:3555

    Put myid file in data directory 4:

    mkdir data
vi myid

    Myid is the number after server in zoo.cfg. The first one’s content is 1, the second one’s content is 2:

    1

    Start:

    ./bin/zkServer.sh start

    Stop:

    ./bin/zkServer.sh stop

    Command line 5:

    telnet 127.0.0.1 2181
dump

    Or:

    echo dump | nc 127.0.0.1 2181

    Usage:

    dubbo.registry.address=zookeeper://10.20.153.10:2181?backup=10.20.153.11:2181

    Or:

    <dubbo:registry protocol="zookeeper" address="10.20.153.10:2181,10.20.153.11:2181" />

    1. Zookeeper is a sub project of Apache Hadoop.As it is robust, we recommend to use in production environment. ↩︎

    2. Data directory should be changed into your real output directory ↩︎

    3. Data directory and server address should be changed into your real machine information ↩︎

    4. dataDir in zoo.cfg ↩︎

    5. http://zookeeper.apache.org/doc/r3.3.3/zookeeperAdmin.html ↩︎