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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
    CassandraDriverException
      CassandraQueryValidationException
        CassandraQueryExecutionException
          CassandraUnavailableException

Namespace: Cassandra
Assembly: Cassandra (in Cassandra.dll) Version: 3.0.9 (git 5ca22bb)
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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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 propertyRequiredReplicas
Gets the number of replica acknowledgements/responses required to perform the operation (with its required consistency level).
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See Also