How to Install Apache Cassandra on Ubuntu 18.04

How to Install Cassandra on Ubuntu

1. STEP 1: Install Packages Necessary for Apache Cassandra. Install Java OpenJDK. ...
2. STEP 2: Add Apache Cassandra Repository and Import GPG Key.
3. STEP 3: Install Apache Cassandra. Verify Apache Cassandra Installation. ...
4. STEP 4: Configure Apache Cassandra. Rename Apache Cassandra Cluster. ...
5. STEP 5: Test Cassandra Command-Line Shell.

1. Where is Cassandra installed on Ubuntu?
2. How do I install and configure Cassandra?
3. How do I start Cassandra service in Ubuntu?
4. How do you check Cassandra is installed or not in Ubuntu?
5. How do I know what version of Cassandra I have Linux?
6. How do I run Cassandra in terminal?
7. How do I configure Cassandra?
8. How do I start Cassandra from command line?
9. What is the main prerequisite for Cassandra?
10. How do I start a Cassandra cluster?
11. How do you stop Cassandra daemon?
12. How do I completely remove Cassandra from Ubuntu?

Where is Cassandra installed on Ubuntu?

Configuring Apache Cassandra

Apache Cassandra data is stored in the /var/lib/cassandra directory, configuration files are located in /etc/cassandra , and Java start-up options can be configured in the /etc/default/cassandra file. By default, Cassandra is configured to listen on localhost only.

How do I install and configure Cassandra?

Step 1: Install Java 8 on Windows

1. Download Oracle JDK 8 (Java Development Kit)
2. Configure Environment Variables for Java 8.
3. Install Python 2.7 on Windows.
4. Edit Environment Variable for Python 2.7.
5. Download and Extract Cassandra tar. gz Folder.
6. Configure Environment Variables for Cassandra.

How do I start Cassandra service in Ubuntu?

To start Cassandra:

1. Enable the service: sudo systemctl enable cassandra.service cassandra.service is not a native service, redirecting to /sbin/chkconfig. Executing /sbin/chkconfig cassandra on.
2. Start Cassandra: sudo service cassandra start.

How do you check Cassandra is installed or not in Ubuntu?

You can validate Cassandra installation by one of the following ways or can try all: Check the status of the Cassandra nodes in your cluster - Go to the /<Install_Dir>/apache-cassandra/bin/ directory and type the ./nodetool status command. If the status for all the nodes shows as UN , then the nodes are up and running.

How do I know what version of Cassandra I have Linux?

5 Answers. Open cqlsh and type show VERSION . This gives all the versions of cqlsh, DSE, Cassandra etc.

How do I run Cassandra in terminal?

After you specify a keyspace, it's added to the prompt.

1. Start the CQL shell: bin/cqlsh. The host information appears. Connected to Test Cluster at 127.0. 0.1:9042. [cqlsh 5.0. 1 | Cassandra 3.3. 0 | CQL spec 3.4. ...
2. Switch to the cycling keyspace: USE cycling; The prompt now includes the keyspace name. cqlsh:cycling>

How do I configure Cassandra?

Configuring Cassandra is done by setting yaml properties in the cassandra.
...
Main runtime properties

1. cluster_name : Set the name of your cluster.
2. seeds : A comma separated list of the IP addresses of your cluster seed nodes.
3. storage_port : Check that you don't have the default port of 7000 blocked by a firewall.

How do I start Cassandra from command line?

Apache Cassandra: Starting With Command Line Interface

1. Step 1: Start the Apache Cassandra Server by running the "<Cassandra_home>\bin\Cassandra. ...
2. Step 2: Start the Command Line Interface from the "<Cassandra_home>\bin\cassandra-cli. ...
3. Step 3: Connect your Cassandra CLI with Cassandra Server.
4. Step 4: Display existing Keyspaces.
5. Step 5: Creating new keyspace.

What is the main prerequisite for Cassandra?

Prerequisites. Install the latest version of Java 8, either the Oracle Java Standard Edition 8 or OpenJDK 8. To verify that you have the correct version of java installed, type java -version . NOTE: Experimental support for Java 11 was added in Cassandra 4.0 (CASSANDRA-9608).

How do I start a Cassandra cluster?

Initializing a multiple node cluster (single datacenter)

1. A good understanding of how Cassandra works. ...
2. Install Cassandra on each node.
3. Choose a name for the cluster.
4. Get the IP address of each node.
5. Determine which nodes will be seed nodes. ...
6. Determine the snitch and replication strategy. ...
7. Determine a naming convention for each rack. ...
8. The cassandra.

How do you stop Cassandra daemon?

Stop Cassandra for Windows. Execute the "Ctrl" + "C" command on the command prompt that was started at the time of startup to stop the process .

How do I completely remove Cassandra from Ubuntu?

I uninstall Cassandra with following steps:

1. uninstall Cassandra using apt-get. apt-get remove cassandra.
2. remove data/log/ directories. rm -rf /var/lib/cassandra. rm -rf /var/log/cassandra. rm -rf /etc/cassandra.