ubuntu14.04 Server Deployment Zookeeper Cluster Server

What is zookeeper?

Apache ZooKeeper is a high-performance coordination server for distributed applications. It exposes public services (such as naming and configuration management, synchronization, and group services) using a simple interface, so that users do not have to start programming from scratch. It provides ready-made support for consensus-building, group management, leader elections, and presence agreements (presence protocol).

Here is my experience with deploying zookeeper clustered servers in ubuntu14.04 server

Zookeeper deployment of clustered servers

1. Installing the JDK

Prior to installing the JDK is their own manual configuration environment, this time to lazy use of Apt-get installed Oracle JDK

sudo add-apt-repository Ppa:webupd8team/java

sudo apt-get update

sudo apt-get install Oracle-java8-installer

sudo update-java-alternatives-s java-8-oracle

The final step is to set the current JDK as the system default JDK

After the installation is complete, you can use Java-version to see if the installation was successful.

2. Deploy the Zookeeper Cluster Server (take 3 servers as an example)

2.1

Extract the downloaded zookeeper compressed package to the appropriate directory, assuming the directory is zookeeper. Create a datadir to hold the state associated with the zookeeper server , assuming the path is/var/lib/zookeeper

CD conf

MV Zoo_sample.cfg Zoo.cfg

VI zoo.cfg

Modify Datadir=/var/lib/zookeeper

Add 3 cluster nodes at the end:

server.1=ip1:2888:3888

server.2=ip2:2888:3888

server.3=ip3:2888:3888

Where ip1, IP2, IP3 represent three server nodes of the IP, the specific IP should be replaced by itself. Port recommendations do not change.

2.2

Create a new file in/var/lib/zookeeper with the file name myID. Content is server. The following number.

For example, in ip1 this server myID content is 1, this is to let the server can know where to find the corresponding address.

2.3

Start the server.

CD bin

Bash zkserver.sh start

This requires 3 servers to be booted.

2.4

You can create a client to connect to a server on any host that is connected to the server network.

CD bin

Bash Zkcli.sh-server ip:2181

Note: Port 2181 is the default port and can be modified in zoo.cfg if necessary.

At this point, the deployment of the Zookeeper Cluster Server is complete.

ubuntu14.04 Server Deployment Zookeeper Cluster Server