Installing and Configuring Cassandra and KairosDB on Ubuntu 14.04 LTS

Earlier this year I put together a post on installing and configuring a Cassandra Cluster in order to meet the requirements for vCloud SP 5.6.x Metric Reporting. In that post I went through the deployment of a Cassandra Cluster and promised a follow up on installing KairosDB. In my labs we are currently working with the vCD Metric APIs and I needed a quick way to stand up the Cassandra/KairosDB environment the vCD Metrics requires. Given the availability and sizing requirements in the lab are not representative of Production I decided to create a Single Node instance. I also streamlined the Cassandra install by adding the Debian repositories for easier install and management. Watch the video below (suggest 2x speed) and check out the key commands listed after the video.

#SETUP JAVA
java -version
apt-get install default-jre
apt-get install default-jdk
update-alternatives --config java
echo $JAVA_HOME
vi /etc/environment
source /etc/environment

#ADD CASSANDRA REPOS TO APT
cd /etc/apt
deb http://www.apache.org/dist/cassandra/debian 21x main
vi sources.list
gpg --keyserver pgp.mit.edu --recv-keys F758CE318D77295D
gpg --export --armor F758CE318D77295D | sudo apt-key add -
gpg --keyserver pgp.mit.edu --recv-keys 2B5C1B00
gpg --export --armor 2B5C1B00 | sudo apt-key add -
gpg --keyserver pgp.mit.edu --recv-keys 0353B12C
gpg --export --armor 0353B12C | sudo apt-key add -
apt-get update

#INSTALL AND START CASSANDRA
apt-get install cassandra
cd /etc/cassandra/
vi cassandra.yaml
service cassandra start
service cassandra status

#DOWNLOAD KAIROSDB SOURCE AND START
wget https://github.com/kairosdb/kairosdb/releases/download/v0.9.4/kairosdb-0.9.4-6.tar.gz
tar -xzf kairosdb-0.9.4-6.tar.gz
kairosdb/conf
vi kairosdb.properties
cd bin/
./kairosdb.sh start

One of the Key settings to configure thats not shown above is changing the KairosDB datastore location from the default In Memory H2 Module to the local Cassandra location. After KairosDB has been started you are ready to point vCloud Director at the endpoint to start exporting VM Metrics to…the post showing that is still to come.