zookeeper register center client version: dubbo-2.3.3 and above[^1]
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://www.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