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
    CassandraDriverException
      CassandraQueryValidationException
        CassandraQueryExecutionException
          CassandraUnavailableException

Namespace: Cassandra
Assembly: Cassandra (in Cassandra.dll) Version: 3.2.0

Syntax

public class UnavailableException : QueryExecutionException

The UnavailableException type exposes the following members.

Constructors

	Name	Description
	UnavailableException	Initializes a new instance of the UnavailableException class

Methods

	Name	Description
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	GetBaseException	When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetObjectData	When overridden in a derived class, sets the SerializationInfo with information about the exception. (Inherited from Exception.)
	GetType	Gets the runtime type of the current instance. (Inherited from Exception.)
	ToString	Creates and returns a string representation of the current exception. (Inherited from Exception.)

Properties

	Name	Description
	AliveReplicas	Gets the number of replica that were known to be alive by the Cassandra coordinator node when it tried to execute the operation.
	Consistency	Gets the consistency level of the operation triggering this unavailable exception.
	Data	Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
	HelpLink	Gets or sets a link to the help file associated with this exception. (Inherited from Exception.)
	HResult	Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
	InnerException	Gets the Exception instance that caused the current exception. (Inherited from Exception.)
	Message	Gets a message that describes the current exception. (Inherited from Exception.)
	RequiredReplicas	Gets the number of replica acknowledgements/responses required to perform the operation (with its required consistency level).
	Source	Gets or sets the name of the application or the object that causes the error. (Inherited from Exception.)
	StackTrace	Gets a string representation of the immediate frames on the call stack. (Inherited from Exception.)
	TargetSite	Gets the method that throws the current exception. (Inherited from Exception.)