• DataStax Enterprise C# Driver API Documentation

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    • Dse
      • AggregateMetadata
      • AlreadyExistsException
      • AtomicMonotonicTimestampGenerator
      • AtomicMonotonicWinApiTimestampGenerator
      • AuthenticationException
      • BatchStatement
      • BatchType
      • BigIntegerTypeAdapter
      • BoundStatement
      • Builder
      • BusyPoolException
      • CassandraConnectionStringBuilder
      • ClientOptions
      • Cluster
      • ColumnDesc
      • ColumnTypeCode
      • CompressionType
      • Configuration
      • ConsistencyLevel
      • ConstantReconnectionPolicy
      • ConstantSpeculativeExecutionPolicy
      • CqlColumn
      • CustomColumnInfo
      • DataCollectionMetadata
      • DataCollectionMetadata.SortOrder
      • DCAwareRoundRobinPolicy
      • DecimalTypeAdapter
      • DefaultRetryPolicy
      • Diagnostics
      • DowngradingConsistencyRetryPolicy
      • DriverException
      • DriverInternalError
      • DseCluster
      • DseClusterBuilder
      • DseConfiguration
      • DseLoadBalancingPolicy
      • Duration
      • DynamicCompositeTypeAdapter
      • EC2MultiRegionTranslator
      • ExecutionException
      • ExecutionInfo
      • ExponentialReconnectionPolicy
      • Extensions
      • FallthroughRetryPolicy
      • FixedReconnectionPolicy
      • FunctionFailureException
      • FunctionMetadata
      • Host
      • HostDistance
      • HostsEventArgs
      • HostsEventArgs.Kind
      • HostsEventHandler
      • IAddressTranslator
      • IAuthenticator
      • IAuthProvider
      • IAuthProviderNamed
      • ICluster
      • IColumnInfo
      • IdempotenceAwareRetryPolicy
      • IDseCluster
      • IDseSession
      • IExecutionProfile
      • IExecutionProfileBuilder
      • IExecutionProfileOptions
      • IExtendedRetryPolicy
      • IFrameCompressor
      • IInitializer
      • ILoadBalancingPolicy
      • IndexMetadata
      • IndexMetadata.IndexKind
      • InvalidConfigurationInQueryException
      • InvalidQueryException
      • InvalidTypeException
      • IReconnectionPolicy
      • IReconnectionSchedule
      • IRetryPolicy
      • IsBootstrappingException
      • ISession
      • ISessionState
      • ISpeculativeExecutionPlan
      • ISpeculativeExecutionPolicy
      • IStatement
      • ITimestampGenerator
      • ITypeAdapter
      • KeyspaceMetadata
      • KeyType
      • ListColumnInfo
      • LocalDate
      • LocalTime
      • Logger
      • LoggingRetryPolicy
      • MapColumnInfo
      • MaterializedViewMetadata
      • Metadata
      • MetadataSyncOptions
      • MetricsExtensions
      • MonitorReportingOptions
      • NoHostAvailableException
      • NoneAuthProvider
      • NoSpeculativeExecutionPolicy
      • NullTypeAdapter
      • OperationTimedOutException
      • OverloadedException
      • PlainTextAuthProvider
      • Policies
      • PoolingOptions
      • PreparedQueryNotFoundException
      • PreparedStatement
      • PreparedStatementIdMismatchException
      • ProtocolErrorException
      • ProtocolOptions
      • ProtocolVersion
      • QueryExecutionException
      • QueryOptions
      • QueryProtocolOptions
      • QueryProtocolOptions.QueryFlags
      • QueryTimeoutException
      • QueryTrace
      • QueryTrace.Event
      • QueryValidationException
      • ReadFailureException
      • ReadTimeoutException
      • RegularStatement
      • ReplicationStrategies
      • RequestInvalidException
      • RetryDecision
      • RetryDecision.RetryDecisionType
      • RetryLoadBalancingPolicy
      • RetryLoadBalancingPolicyEventArgs
      • RoundRobinPolicy
      • RoutingKey
      • Row
      • RowSet
      • RowSetMetadata
      • SchemaChangedEventArgs
      • SchemaChangedEventArgs.Kind
      • SchemaChangedEventHandler
      • ServerErrorException
      • Session
      • SetColumnInfo
      • SimpleStatement
      • SocketOptions
      • SSLOptions
      • Statement
      • SyntaxError
      • TableColumn
      • TableMetadata
      • TableOptions
      • TimeUuid
      • TokenAwarePolicy
      • ToManyConnectionsPerHost
      • TraceRetrievalException
      • TruncateException
      • TupleColumnInfo
      • TypeAdapters
      • UdtColumnInfo
      • UdtMap
      • UdtMap<T>
      • UdtMappingDefinitions
      • UnauthorizedException
      • UnavailableException
      • Unset
      • WriteFailureException
      • WriteTimeoutException
    • Dse.AppMetrics
      • DriverAppMetricsOptions
    • Dse.AppMetrics.MetricTypes
      • IAppMetricsCounter
      • IAppMetricsGauge
      • IAppMetricsMeter
      • IAppMetricsMetric
      • IAppMetricsTimer
    • Dse.AppMetrics.MetricValues
      • IAppMetricsHistogramValue
      • IAppMetricsMeterValue
      • IAppMetricsMetricWithValue<T>
      • IAppMetricsTimerValue
    • Dse.Auth
      • DseGssapiAuthProvider
      • DsePlainTextAuthProvider
    • Dse.Auth.Sspi
      • SspiException
    • Dse.Data
      • CqlBatchTransaction
      • CqlCommand
      • CqlConnection
      • CqlDataAdapter
      • CqlParameter
      • CqlParameterCollection
      • CqlProviderFactory
      • CqlReader
    • Dse.Data.Linq
      • AllowFilteringAttribute
      • Batch
      • ClusteringKeyAttribute
      • ColumnAttribute
      • CompactStorageAttribute
      • CounterAttribute
      • CqlArgumentException
      • CqlCommand
      • CqlConditionalCommand<TEntity>
      • CqlDelete
      • CqlFunction
      • CqlInsert<TEntity>
      • CqlLinqNotSupportedException
      • CqlOperator
      • CqlQuery<TEntity>
      • CqlQueryBase<TEntity>
      • CqlQueryExtensions
      • CqlQuerySingleElement<TEntity>
      • CqlScalar<TEntity>
      • CqlToken
      • CqlUpdate
      • IgnoreAttribute
      • ITable
      • PartitionKeyAttribute
      • SecondaryIndexAttribute
      • SessionExtensions
      • StaticColumnAttribute
      • Table<TEntity>
      • TableAttribute
      • TableType
    • Dse.Geometry
      • GeometryBase
      • LineString
      • Point
      • Polygon
    • Dse.Graph
      • Edge
      • Element
      • GraphNode
      • GraphOptions
      • GraphResultSet
      • GraphStatement
      • IEdge
      • IElement
      • IGraphNode
      • IGraphStatement
      • IPath
      • IProperty
      • IVertex
      • IVertexProperty
      • Path
      • SimpleGraphStatement
      • Vertex
    • Dse.Mapping
      • AppliedInfo<T>
      • ColumnMap
      • Cql
      • CqlQueryOptions
      • IColumnDefinition
      • ICqlBatch
      • ICqlQueryAsyncClient
      • ICqlQueryClient
      • ICqlWriteAsyncClient
      • ICqlWriteClient
      • IMapper
      • IPage<T>
      • ITypeDefinition
      • Map<TPoco>
      • Mapper
      • MappingConfiguration
      • Mappings
      • SortOrder
    • Dse.Mapping.Attributes
      • ClusteringKeyAttribute
      • ColumnAttribute
      • CounterAttribute
      • FrozenAttribute
      • FrozenKeyAttribute
      • FrozenValueAttribute
      • IgnoreAttribute
      • PartitionKeyAttribute
      • SecondaryIndexAttribute
      • StaticColumnAttribute
      • TableAttribute
    • Dse.Mapping.TypeConversion
      • DefaultTypeConverter
      • EnumStringMapper<T>
      • NullableEnumStringMapper<T>
      • TypeConverter
    • Dse.Mapping.Utils
      • MemberInfoExtensions
    • Dse.Metrics
      • DriverMetricsOptions
      • IDriverMetrics
      • IMetric
      • IMetricsRegistry<TMetric>
      • NodeMetric
      • NodeMetric.Counters
      • NodeMetric.Gauges
      • NodeMetric.Meters
      • NodeMetric.Timers
      • SessionMetric
      • SessionMetric.Counters
      • SessionMetric.Gauges
      • SessionMetric.Meters
      • SessionMetric.Timers
    • Dse.Metrics.Abstractions
      • IDriverCounter
      • IDriverGauge
      • IDriverMeter
      • IDriverMetric
      • IDriverMetricsProvider
      • IDriverTimer
    • Dse.Search
      • DateRange
      • DateRangeBound
      • DateRangePrecision
    • Dse.Serialization
      • CustomTypeSerializer<T>
      • TypeSerializer
      • TypeSerializer<T>
      • TypeSerializerDefinitions
      • UdtSerializer

    Interface ISpeculativeExecutionPolicy

    The policy that decides if the driver will send speculative queries to the next hosts when the current host takes too long to respond. only idempotent statements will be speculatively retried, see IsIdempotent for more information.

    Inherited Members
    System.IDisposable.Dispose()
    Namespace: Dse
    Assembly: Dse.dll
    Syntax
    public interface ISpeculativeExecutionPolicy : IDisposable

    Methods

    Initialize(ICluster)

    Initializes the policy at cluster startup.

    Declaration
    void Initialize(ICluster cluster)
    Parameters
    Type Name Description
    ICluster cluster

    NewPlan(String, IStatement)

    Returns the plan to use for a new query.

    Declaration
    ISpeculativeExecutionPlan NewPlan(string keyspace, IStatement statement)
    Parameters
    Type Name Description
    System.String keyspace

    the currently logged keyspace

    IStatement statement

    the query for which to build a plan.

    Returns
    Type Description
    ISpeculativeExecutionPlan
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