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UnavailableException Class
Exception thrown when the coordinator knows there is not enough replica alive to perform a query with the requested consistency level.
Inheritance Hierarchy
SystemObject
  SystemException
    DseDriverException
      DseQueryValidationException
        DseQueryExecutionException
          DseUnavailableException

Namespace: Dse
Assembly: Dse (in Dse.dll) Version: 2.1.0
Syntax
C#
public class UnavailableException : QueryExecutionException

The UnavailableException type exposes the following members.

Constructors
  NameDescription
Public methodUnavailableException
Initializes a new instance of the UnavailableException class
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Methods
  NameDescription
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Public methodGetBaseException
When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.
(Inherited from Exception.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetObjectData
When overridden in a derived class, sets the SerializationInfo with information about the exception.
(Inherited from Exception.)
Public methodGetType
Gets the runtime type of the current instance.
(Inherited from Exception.)
Public methodToString
Creates and returns a string representation of the current exception.
(Inherited from Exception.)
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Properties
  NameDescription
Public propertyAliveReplicas
Gets the number of replica that were known to be alive by the Cassandra coordinator node when it tried to execute the operation.
Public propertyConsistency
Gets the consistency level of the operation triggering this unavailable exception.
Public propertyData
Gets a collection of key/value pairs that provide additional user-defined information about the exception.
(Inherited from Exception.)
Public propertyHelpLink
Gets or sets a link to the help file associated with this exception.
(Inherited from Exception.)
Public propertyHResult
Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.
(Inherited from Exception.)
Public propertyInnerException
Gets the Exception instance that caused the current exception.
(Inherited from Exception.)
Public propertyMessage
Gets a message that describes the current exception.
(Inherited from Exception.)
Public propertyRequiredReplicas
Gets the number of replica acknowledgements/responses required to perform the operation (with its required consistency level).
Public propertySource
Gets or sets the name of the application or the object that causes the error.
(Inherited from Exception.)
Public propertyStackTrace
Gets a string representation of the immediate frames on the call stack.
(Inherited from Exception.)
Public propertyTargetSite
Gets the method that throws the current exception.
(Inherited from Exception.)
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See Also

Reference