[FLINK-7415] Include instructions for creating the keyspace in cassandra examples

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.3.2, 1.4.0
• Fix Version/s: 1.4.0
• Component/s: Connectors / Cassandra
• Assignee: Unassigned
• Reporter: Hai Zhou
• Created: 10/Aug/17 15:02
• Updated: 15/Aug/17 11:52
• Resolved: 15/Aug/17 11:52

Description

In `org.apache.flink.batch.connectors.cassandra.example.BatchExample`description:

 * <p>The example assumes that a table exists in a local cassandra database, according to the following query:
 * CREATE TABLE test.batches (number int, strings text, PRIMARY KEY(number, strings));
 */

The Keyspace 'test' not exist，We should create it at first.

I will improve its description.

Issue Links

• links to: GitHub Pull Request #4519