KairosDB is a powerful time-series database that can handle large amounts of data. In this tutorial, we'll cover the steps you need to follow in order to install KairosDB on Debian Latest.
Before you begin, make sure that you have the following prerequisites:
KairosDB requires Java to run. You can install Java using the following command:
sudo apt update
sudo apt install default-jdk
Verify that Java has been installed by running the following command:
java -version
If Java is successfully installed, you should see the Java version number.
KairosDB uses Cassandra as its backend database. You can install Cassandra by running the following command:
echo "deb https://downloads.apache.org/cassandra/debian 40x main" | sudo tee -a /etc/apt/sources.list.d/cassandra.sources.list
curl https://downloads.apache.org/cassandra/KEYS | sudo apt-key add -
sudo apt update
sudo apt install cassandra
After Cassandra has been installed, you can start it using the following command:
sudo systemctl start cassandra
To verify that Cassandra is running, you can use the following command:
nodetool status
If Cassandra is running, you should see the status of the Cassandra node.
Now that Java and Cassandra are installed, we can proceed with installing KairosDB. You can download KairosDB from the official GitHub repository:
cd /tmp
wget https://github.com/kairosdb/kairosdb/releases/download/v1.3.3/kairosdb-1.3.3-1.tar.gz
Extract the downloaded tarball:
tar xzf kairosdb-1.3.3-1.tar.gz
Copy the extracted folder to /opt:
sudo mkdir /opt/kairosdb
sudo cp -r kairosdb-1.3.3-1/* /opt/kairosdb/
Now that KairosDB is installed, configure it by editing the kairosdb.properties file:
sudo vi /opt/kairosdb/conf/kairosdb.properties
Add the following lines to the end of the file:
kairosdb.datastore.cassandra.host_list=localhost:9160
kairosdb.jetty.port=8080
Save and exit the file.
You can start KairosDB using the following command:
cd /opt/kairosdb/bin/
sudo ./kairosdb.sh start
To stop KairosDB, run the following command:
sudo ./kairosdb.sh stop
To check the status of KairosDB, you can use the following command:
sudo ./kairosdb.sh status
If KairosDB is running, you should see the status message.
To test KairosDB, you can use curl to make a query:
curl -X POST http://localhost:8080/api/v1/datapoints/query \
-H 'Content-Type: application/json' \
-d '{
"metrics": [
{
"tags": {
"host": ["server1"],
"region": ["us-west"]
},
"name": "cpu"
}
],
"start_relative": {
"value": "15",
"unit": "minutes"
}
}'
If KairosDB is working correctly, you should get a response with the data points that match the query.
Congratulations! You have successfully installed KairosDB on Debian Latest. You can now use it to store and query large amounts of time-series data.
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