Class NoHostAvailableException

Exception thrown when a query cannot be performed because no host are available. This exception is thrown if

• either there is no host live in the cluster at the moment of the query
• all host that have been tried have failed due to a connection problem

For debugging purpose, the list of hosts that have been tried along with the failure cause can be retrieved using the #errors method.

Inheritance

System.Object

System.Exception

DriverException

NoHostAvailableException

Implements

System.Runtime.Serialization.ISerializable

Inherited Members

System.Exception.GetBaseException()

System.Exception.GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext)

System.Exception.GetType()

System.Exception.ToString()

System.Exception.Data

System.Exception.HelpLink

System.Exception.HResult

System.Exception.InnerException

System.Exception.Message

System.Exception.Source

System.Exception.StackTrace

System.Exception.TargetSite

System.Exception.SerializeObjectState

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

Namespace: Cassandra

Assembly: Cassandra.dll

Syntax

[Serializable]
public class NoHostAvailableException : DriverException, ISerializable

Constructors

NoHostAvailableException(Dictionary<IPEndPoint, Exception>)

Declaration

public NoHostAvailableException(Dictionary<IPEndPoint, Exception> errors)

Parameters

Type	Name	Description
System.Collections.Generic.Dictionary<System.Net.IPEndPoint, System.Exception>	errors

NoHostAvailableException(SerializationInfo, StreamingContext)

Declaration

protected NoHostAvailableException(SerializationInfo info, StreamingContext context)

Parameters

Type	Name	Description
System.Runtime.Serialization.SerializationInfo	info
System.Runtime.Serialization.StreamingContext	context

Properties

Errors

Gets the hosts tried along with descriptions of the error encountered while trying them.

Declaration

public Dictionary<IPEndPoint, Exception> Errors { get; }

Property Value

Type	Description
System.Collections.Generic.Dictionary<System.Net.IPEndPoint, System.Exception>

Implements

System.Runtime.Serialization.ISerializable