Installing Apache Cassandra on Ubuntu
This post will guide you how to install Cassandra on Ubuntu 12.04.
Install the new updates using following commands
sudo apt-get update sudo apt-get upgrade
open /etc/apt/sources.list using the following command
sudo gedit /etc/apt/sources.list
deb http://www.apache.org/dist/cassandra/debian 10x main deb-src http://www.apache.org/dist/cassandra/debian 10x main
Run update again and you will get the following error. This means you
need to add the PUBLIC_KEY. In next step you will understand how to add
GPG error: http://www.apache.org unstable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4BD736A82B5C1B00
Register and add a PUBLIC_KEY key and update again, note that you may need to change the key accordingly
gpg --keyserver wwwkeys.pgp.net --recv-keys 4BD736A82B5C1B00 sudo apt-key add ~/.gnupg/pubring.gpg sudo apt-get update
Install Cassandra using the following command
sudo apt-get install cassandra
Start Cassandra server using the following command
sudo cassandra -f
.... .... .... INFO 12:18:29,140 Listening for thrift clients...
To stop Cassandra server process first find the Process ID for Cassandra and kill it.
To find the process ID use following command
ps auwx | grep cassandra
root 3595 0.0 0.0 60048 1908 pts/0 S+ 12:18 0:00 sudo cassandra -f
sudo kill [pid]
INFO 13:04:08,663 Stop listening to thrift clients INFO 13:04:08,666 Waiting for messaging service to quiesce INFO 13:04:08,667 MessagingService shutting down server thread.
Use following command to start Cassandra as a service
sudo /etc/init.d/cassandra start
Use following command to stop Cassandra service
sudo /etc/init.d/cassandra stop
- /var/lib/cassandra (data directories)
- /var/log/cassandra (log directory)
- /var/run/cassandra (runtime files)
- /usr/share/cassandra (environment settings)
- /usr/share/cassandra/lib (JAR files)
- /usr/bin (binary files)
- /etc/cassandra (configuration files)
- /etc/init.d (service startup script)
- /etc/security/limits.d (cassandra user limits)
If you get the following error while you try to start a Cassandra server, means that cassandra is already running in the background somewhere. You will need to kill the process that is running in the background first. You can probably use the above mentioned stop command to stop any Cassandra servers running background. view plainprint?
- Error: Exception thrown by the agent : java.rmi.server.ExportException: Port already in use: 7199; nested exception is:
- java.net.BindException: Address already in use
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