CassandraSourceReadConsistencyLevel
Class
Definition
Consistency level when connecting to the Cassandra database. A property of CassandraSource. Reference: http://docs.datastax.com/en/cassandra/2.0/cassandra/dml/dml_config_consistency_c.html.
public static class CassandraSourceReadConsistencyLevel- Inheritance
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CassandraSourceReadConsistencyLevel
Fields
| All |
Returns the record after all replicas have responded. The read operation will fail if a replica does not respond. |
| EachQuorum |
Returns the record once a quorum of replicas in each data center of the cluster has responded. |
| LocalOne |
Returns a response from the closest replica in the local data center. |
| LocalQuorum |
Returns the record after a quorum of replicas in the current data center as the coordinator has reported. Avoids latency of inter-data center communication. |
| LocalSerial |
Same as SERIAL, but confined to the data center. Similar to LOCAL_QUORUM. |
| One |
Returns a response from the closest replica, as determined by the snitch. By default, a read repair runs in the background to make the other replicas consistent. |
| Quorum |
Returns the record after a quorum of replicas has responded from any data center. |
| Serial |
Allows reading the current (and possibly uncommitted) state of data without proposing a new addition or update. If a SERIAL read finds an uncommitted transaction in progress, it will commit the transaction as part of the read. Similar to QUORUM. |
| Three |
Returns the most recent data from three of the closest replicas. |
| Two |
Returns the most recent data from two of the closest replicas. |
Extension Methods
| IsDefined(Object) | |
| IsNull(Object) | |
| IsPrimitive(Object) |