Class UnavailableException

Exception thrown when the coordinator knows there is not enough replica alive to perform a query with the requested consistency level.

Inheritance

object

Exception

DriverException

QueryValidationException

QueryExecutionException

UnavailableException

Implements

ISerializable

Inherited Members

Exception.GetBaseException()

Exception.GetObjectData(SerializationInfo, StreamingContext)

Exception.GetType()

Exception.ToString()

Exception.Data

Exception.HelpLink

Exception.HResult

Exception.InnerException

Exception.Message

Exception.Source

Exception.StackTrace

Exception.TargetSite

Exception.SerializeObjectState

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Namespace: Cassandra

Assembly: Cassandra.dll

Syntax

public class UnavailableException : QueryExecutionException, ISerializable

Constructors

UnavailableException(ConsistencyLevel, int, int)

Declaration

public UnavailableException(ConsistencyLevel consistency, int required, int alive)

Parameters

Type	Name	Description
ConsistencyLevel	consistency
int	required
int	alive

Properties

AliveReplicas

Gets the number of replica that were known to be alive by the Cassandra coordinator node when it tried to execute the operation.

Declaration

public int AliveReplicas { get; }

Property Value

Type	Description
int

Consistency

Gets the consistency level of the operation triggering this unavailable exception.

Declaration

public ConsistencyLevel Consistency { get; }

Property Value

Type	Description
ConsistencyLevel

RequiredReplicas

Gets the number of replica acknowledgements/responses required to perform the operation (with its required consistency level).

Declaration

public int RequiredReplicas { get; }

Property Value

Type	Description
int

Implements

ISerializable