Class FallthroughRetryPolicy

A retry policy that never retry (nor ignore).

All of the methods of this retry policy unconditionally return Rethrow(). If this policy is used, retry will have to be implemented in business code.

Inheritance

System.Object

FallthroughRetryPolicy

Implements

IExtendedRetryPolicy

IRetryPolicy

Inherited Members

System.Object.Equals(System.Object)

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

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

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

System.Object.ToString()

Namespace: Dse

Assembly: Dse.dll

Syntax

public class FallthroughRetryPolicy : IExtendedRetryPolicy, IRetryPolicy

Fields

Instance

Declaration

public static readonly FallthroughRetryPolicy Instance

Field Value

Type	Description
FallthroughRetryPolicy

Methods

OnReadTimeout(IStatement, ConsistencyLevel, Int32, Int32, Boolean, Int32)

Defines whether to retry and at which consistency level on a read timeout.

Declaration

public RetryDecision OnReadTimeout(IStatement query, ConsistencyLevel cl, int requiredResponses, int receivedResponses, bool dataRetrieved, int nbRetry)

Parameters

Type	Name	Description
IStatement	query	the original query that timeouted.
ConsistencyLevel	cl	the original consistency level of the read that timeouted.
System.Int32	requiredResponses	the number of responses that were required to achieve the requested consistency level.
System.Int32	receivedResponses	the number of responses that had been received by the time the timeout exception was raised.
System.Boolean	dataRetrieved	whether actual data (by opposition to data checksum) was present in the received responses.
System.Int32	nbRetry	the number of retry already performed for this operation.

Returns

Type	Description
RetryDecision	RetryDecision.rethrow().

OnRequestError(IStatement, Configuration, Exception, Int32)

Declaration

public RetryDecision OnRequestError(IStatement statement, Configuration config, Exception ex, int nbRetry)

Parameters

Type	Name	Description
IStatement	statement
Configuration	config
System.Exception	ex
System.Int32	nbRetry

Returns

Type	Description
RetryDecision

OnUnavailable(IStatement, ConsistencyLevel, Int32, Int32, Int32)

Defines whether to retry and at which consistency level on an unavailable exception.

Declaration

public RetryDecision OnUnavailable(IStatement query, ConsistencyLevel cl, int requiredReplica, int aliveReplica, int nbRetry)

Parameters

Type	Name	Description
IStatement	query	the original query for which the consistency level cannot be achieved.
ConsistencyLevel	cl	the original consistency level for the operation.
System.Int32	requiredReplica	the number of replica that should have been (known) alive for the operation to be attempted.
System.Int32	aliveReplica	the number of replica that were know to be alive by the coordinator of the operation.
System.Int32	nbRetry	the number of retry already performed for this operation.

Returns

Type	Description
RetryDecision	RetryDecision.rethrow().

OnWriteTimeout(IStatement, ConsistencyLevel, String, Int32, Int32, Int32)

Defines whether to retry and at which consistency level on a write timeout.

Declaration

public RetryDecision OnWriteTimeout(IStatement query, ConsistencyLevel cl, string writeType, int requiredAcks, int receivedAcks, int nbRetry)

Parameters

Type	Name	Description
IStatement	query	the original query that timeouted.
ConsistencyLevel	cl	the original consistency level of the write that timeouted.
System.String	writeType	the type of the write that timeouted.
System.Int32	requiredAcks	the number of acknowledgments that were required to achieve the requested consistency level.
System.Int32	receivedAcks	the number of acknowledgments that had been received by the time the timeout exception was raised.
System.Int32	nbRetry	the number of retry already performed for this operation.

Returns

Type	Description
RetryDecision	RetryDecision.rethrow().

Implements

IExtendedRetryPolicy

IRetryPolicy