CassandraAuditWriter table columns 

When logging audit data to a Cassandra table using the CassandraAuditWriter logger, the audit data is stored in the dse_audit.audit_log table.

When logging audit data to a Cassandra table using the CassandraAuditWriter logger, the audit data is stored in the dse_audit.audit_log table. This table has the following columns.

Audit log table columns
Column Description
date Date of the event.
node DSE node address.
day_partition  
event_time The system timestamp of the event.
batch_id The UUID of the batch query the event was grouped with when written to Cassandra.
category The event category.
keyspace_name The keyspace of the event.
operation The query or event description.
source The IP address of the client.
table_name The table affected by the event.
type The type of the event.
username The authenticated user triggering the event. If authentication isn't enabled, the user is anonymous.
Using cqlsh, a SELECT statement can access the data if a user/role has permission:
SELECT * FROM dse_audit.audit_log;
with sample output from a DSE Graph query:
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 57ff2dc0-3827-11e6-9ea9-2f93eec587f0 | null | QUERY | null | null | 
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 57ffa2f0-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 57ffca00-3827-11e6-9ea9-2f93eec587f0 | null | QUERY |    ONE |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 58001820-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 58001821-3827-11e6-9ea9-2f93eec587f0 | null | QUERY |    ONE |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 58008d50-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 5800db70-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 5800db71-3827-11e6-9ea9-2f93eec587f0 | null | QUERY |    ONE |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 58012990-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 58019ec0-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 58019ec1-3827-11e6-9ea9-2f93eec587f0 | null | QUERY |    ONE |        test |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 5bb86530-3827-11e6-9ea9-2f93eec587f0 | null | QUERY |    ONE |   dse_audit |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 6dfac5d0-3827-11e6-9ea9-2f93eec587f0 | null | QUERY | QUORUM | test_system |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 6dfbb030-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null | test_system |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 6dfbb031-3827-11e6-9ea9-2f93eec587f0 | null | QUERY | QUORUM | test_system |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 70c70530-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null |  dse_system |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 70c70531-3827-11e6-9ea9-2f93eec587f0 | null | QUERY | QUORUM |  dse_system |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 78fb6480-3827-11e6-9ea9-2f93eec587f0 | null | QUERY |    ONE |   dse_audit |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 7aadcf70-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null | test_system |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 7aadf680-3827-11e6-9ea9-2f93eec587f0 | null | QUERY | QUORUM | test_system |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 7aaee0e0-3827-11e6-9ea9-2f93eec587f0 | null |   DML |   null | test_system |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 7aaee0e1-3827-11e6-9ea9-2f93eec587f0 | null | QUERY | QUORUM | test_system |
 2016-06-22 00:00:00+0000 | 127.0.0.1 | 10800 | 8195b190-3827-11e6-9ea9-2f93eec587f0 | null | QUERY |    ONE |   dse_audit |
RequestMessage{, requestId=941d2e1a-7cc9-4c80-8c28-dccb799840b7, op='eval', processor='session', args={gremlin=g.V().count(), 
  aliases={g=testQSagain.g}, session=d179c734-813f-4a3e-89d6-bd756b4fcf57, bindings={}, manageTransaction=true, batchSize=64}}         | /127.0.0.1:60647 |         null | GRAPH_TINKERPOP_TRAVERSAL |   unknown
 SELECT "community_id", "member_id" FROM "test"."meal_p" WHERE "~~vertex_exists" = ? LIMIT ? ALLOW FILTERING;                          |         /0.0.0.0 |       meal_p |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |       meal_p |                CQL_SELECT |    system
 SELECT "community_id", "member_id" FROM "test"."ingredient_p" WHERE "~~vertex_exists" = ? LIMIT ? ALLOW FILTERING;                    |         /0.0.0.0 | ingredient_p |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 | ingredient_p |                CQL_SELECT |    system
 SELECT "community_id", "member_id" FROM "test"."author_p" WHERE "~~vertex_exists" = ? LIMIT ? ALLOW FILTERING;                        |         /0.0.0.0 |     author_p |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |     author_p |                CQL_SELECT |    system
 SELECT "community_id", "member_id" FROM "test"."book_p" WHERE "~~vertex_exists" = ? LIMIT ? ALLOW FILTERING;                          |         /0.0.0.0 |       book_p |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |       book_p |                CQL_SELECT |    system
 SELECT "community_id", "member_id" FROM "test"."recipe_p" WHERE "~~vertex_exists" = ? LIMIT ? ALLOW FILTERING;                        |         /0.0.0.0 |     recipe_p |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |     recipe_p |                CQL_SELECT |    system
 SELECT "community_id", "member_id" FROM "test"."reviewer_p" WHERE "~~vertex_exists" = ? LIMIT ? ALLOW FILTERING;                      |         /0.0.0.0 |   reviewer_p |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |   reviewer_p |                CQL_SELECT |    system
 select * from audit_log ;                                                                                                             |       /127.0.0.1 |    audit_log |                CQL_SELECT | anonymous
 SELECT last_updated FROM "test_system".shared_data WHERE dataspace = ?;                                                               |         /0.0.0.0 |  shared_data |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |  shared_data |                CQL_SELECT |    system
 SELECT last_updated FROM "test_system".shared_data WHERE dataspace = ?;                                                               |         /0.0.0.0 |  shared_data |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |  shared_data |                CQL_SELECT |    system
 SELECT last_updated FROM "dse_system".shared_data WHERE dataspace = ?;                                                                |         /0.0.0.0 |  shared_data |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |  shared_data |                CQL_SELECT |    system
 select * from audit_log ;                                                                                                             |       /127.0.0.1 |    audit_log |                CQL_SELECT | anonymous
 SELECT last_updated FROM "test_system".shared_data WHERE dataspace = ?;                                                               |         /0.0.0.0 |  shared_data |     CQL_PREPARE_STATEMENT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |  shared_data |                CQL_SELECT |    system
 Query string not found in prepared statement cache [bind variable values unavailable]                                                 |         /0.0.0.0 |  shared_data |                CQL_SELECT |    system
 select * from audit_log ;                                                                                                             |       /127.0.0.1 |    audit_log |                CQL_SELECT | anonymous