Package org.apache.cassandra.service.paxos

Class PaxosPropose<OnDone extends Consumer<? super org.apache.cassandra.service.paxos.PaxosPropose.Status>>

java.lang.Object

org.apache.cassandra.service.FailureRecordingCallback<T>

org.apache.cassandra.service.paxos.PaxosRequestCallback<org.apache.cassandra.service.paxos.PaxosPropose.Response>

org.apache.cassandra.service.paxos.PaxosPropose<OnDone>

All Implemented Interfaces:

RequestCallback<org.apache.cassandra.service.paxos.PaxosPropose.Response>, RequestCallbackWithFailure<org.apache.cassandra.service.paxos.PaxosPropose.Response>

public class PaxosPropose<OnDone extends Consumer<? super org.apache.cassandra.service.paxos.PaxosPropose.Status>>
extends PaxosRequestCallback<org.apache.cassandra.service.paxos.PaxosPropose.Response>

In waitForNoSideEffect mode, we will not return failure to the caller until we have received a complete set of refusal responses, or at least one accept, indicating (respectively) that we have had no side effect, or that we cannot know if we our proposal produced a side effect.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PaxosPropose.RequestHandler	The proposal request handler, i.e.
static class	PaxosPropose.RequestSerializer
static class	PaxosPropose.ResponseSerializer

Nested classes/interfaces inherited from class org.apache.cassandra.service.FailureRecordingCallback

FailureRecordingCallback.AsMap, FailureRecordingCallback.FailureResponses

Field Summary

Fields

Modifier and Type	Field	Description
static final long	ACCEPT_INCREMENT
static final long	FAILURE_INCREMENT
static final long	REFUSAL_INCREMENT
static final PaxosPropose.RequestHandler	requestHandler
static final PaxosPropose.RequestSerializer	requestSerializer
static final PaxosPropose.ResponseSerializer	responseSerializer

Method Summary

Modifier and Type	Method	Description
void	onFailure(InetAddressAndPort from, RequestFailureReason reason)	Called when there is an exception on the remote node or timeout happens
void	onResponse(org.apache.cassandra.service.paxos.PaxosPropose.Response response, InetAddressAndPort from)
static <T> boolean	shouldSignal(long responses, int required, int participants, boolean waitForNoSideEffect, AtomicLongFieldUpdater<T> responsesUpdater, T update)

Methods inherited from class org.apache.cassandra.service.paxos.PaxosRequestCallback

executeOnSelf, onResponse

Methods inherited from class org.apache.cassandra.service.FailureRecordingCallback

failureReasonsAsMap, onFailureWithMutex

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.cassandra.net.RequestCallback

trackLatencyForSnitch

Methods inherited from interface org.apache.cassandra.net.RequestCallbackWithFailure

invokeOnFailure

Field Details

requestHandler

public static final PaxosPropose.RequestHandler requestHandler

requestSerializer

public static final PaxosPropose.RequestSerializer requestSerializer

responseSerializer

public static final PaxosPropose.ResponseSerializer responseSerializer

ACCEPT_INCREMENT

public static final long ACCEPT_INCREMENT

See Also:

• Constant Field Values

REFUSAL_INCREMENT

public static final long REFUSAL_INCREMENT

See Also:

• Constant Field Values

FAILURE_INCREMENT

public static final long FAILURE_INCREMENT

See Also:

• Constant Field Values

Method Details

onResponse

public void onResponse(org.apache.cassandra.service.paxos.PaxosPropose.Response response,
 InetAddressAndPort from)

Specified by:

onResponse in class PaxosRequestCallback<org.apache.cassandra.service.paxos.PaxosPropose.Response>

onFailure

public void onFailure(InetAddressAndPort from,
 RequestFailureReason reason)

Description copied from interface: RequestCallbackWithFailure

Called when there is an exception on the remote node or timeout happens

Specified by:

onFailure in interface RequestCallback<OnDone extends Consumer<? super org.apache.cassandra.service.paxos.PaxosPropose.Status>>

Specified by:

onFailure in interface RequestCallbackWithFailure<OnDone extends Consumer<? super org.apache.cassandra.service.paxos.PaxosPropose.Status>>

Overrides:

onFailure in class FailureRecordingCallback<org.apache.cassandra.service.paxos.PaxosPropose.Response>

shouldSignal

public static <T> boolean shouldSignal(long responses,
 int required,
 int participants,
 boolean waitForNoSideEffect,
 AtomicLongFieldUpdater<T> responsesUpdater,
 T update)