Cassandra: Quick Start

Install DC/OS on your cluster. See the documentation for instructions.
If you are using open source DC/OS, install DC/OS Apache Cassandra with the following command from the DC/OS CLI. If you are using Enterprise DC/OS, you may need to follow additional instructions. See the Install and Customize section for more information.
```
dcos package install beta-cassandra
```

You can also install DC/OS Apache Cassandra from the DC/OS web interface.

The service will now deploy with a default configuration. You can monitor its deployment via the Services UI in the DC/OS Dashboard.

Connect a client to the DC/OS Apache Cassandra service.

dcos beta-cassandra endpoints
[
  "native-client"
]

dcos beta-cassandra endpoints native-client
{
  "address": [
    "10.0.1.125:9042",
    "10.0.2.152:9042",
    "10.0.1.22:9042"
  ],
  "dns": [
    "node-1-server.cassandra.autoip.dcos.thisdcos.directory:9042",
    "node-0-server.cassandra.autoip.dcos.thisdcos.directory:9042",
    "node-2-server.cassandra.autoip.dcos.thisdcos.directory:9042"
  ]
}

Write some data to your cluster using the node-0-server entry provided above.

Note: In production, you should specify multiple node addresses to avoid disruption if a subset of addressed nodes are down:

$ dcos node ssh --master-proxy --leader
$ docker run -it cassandra:3.0.14 cqlsh node-0-server.cassandra.autoip.dcos.thisdcos.directory
node-0-server.cassandra.autoip.dcos.thisdcos.directory:9042
> CREATE KEYSPACE space1 WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 3 };
> USE space1;
> CREATE TABLE testtable1 (key varchar, value varchar, PRIMARY KEY(key));
> INSERT INTO space1.testtable1(key, value) VALUES('testkey1', 'testvalue1');
> SELECT * FROM testtable1;