Apache ZooKeeper is a distributed coordination service that helps to keep large distributed systems well-organized. In this tutorial, we will learn how to install ZooKeeper from http://zookeeper.apache.org/ on Clear Linux Latest.
Before we begin, let's make sure that we have the following prerequisites:
Before installing ZooKeeper, we need to install Java. Clear Linux Latest comes with OpenJDK preinstalled, so we just need to check whether it's up to date:
sudo swupd check-update
If updates are available, install them with the following command:
sudo swupd update
We can download the latest version of ZooKeeper from its official website:
wget https://downloads.apache.org/zookeeper/zookeeper-3.7.0/apache-zookeeper-3.7.0-bin.tar.gz
Once the file is downloaded, extract it using the following command:
tar zxvf apache-zookeeper-3.7.0-bin.tar.gz
Now we have a new directory called apache-zookeeper-3.7.0.
Before starting ZooKeeper, we need to configure it. We need to create a configuration file called zoo.cfg in the conf directory of the ZooKeeper installation:
cd apache-zookeeper-3.7.0/conf
cp zoo_sample.cfg zoo.cfg
Open zoo.cfg in a text editor and change the following line:
dataDir=/tmp/zookeeper
to:
dataDir=/var/lib/zookeeper
Now we can start ZooKeeper:
cd ../bin
./zkServer.sh start
After a few moments, you should see this output:
ZooKeeper JMX enabled by default
Using config: /home/user/apache-zookeeper-3.7.0/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
Congratulations! You have successfully installed and started ZooKeeper on Clear Linux Latest.
When you want to stop ZooKeeper, use the following command:
./zkServer.sh stop
In this tutorial, we have learned how to install ZooKeeper on Clear Linux Latest. We hope that you found this tutorial helpful and feel free to explore the vast capabilities of ZooKeeper.
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