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https://issues.apache.org/jira/browse/AMQ-5379 - amqp prefetch; split producer and consumer prefetch settings; allow consumer prefetch to be adjusted using link credit

This commit is contained in:
Dejan Bosanac 2014-10-21 14:52:26 +02:00
parent 3873ecfe5d
commit ab3de0c4c2
4 changed files with 48 additions and 34 deletions
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7
activemq-amqp/src/main/java/org/apache/activemq/transport/amqp/AMQPProtocolDiscriminator.java
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@ -31,6 +31,7 @@ public class AMQPProtocolDiscriminator implements IAmqpProtocolConverter {
final private AmqpTransport transport;
private int prefetch = DEFAULT_PREFETCH;
private int producerCredit = DEFAULT_PREFETCH;
interface Discriminator {
boolean matches(AmqpHeader header);
@ -85,6 +86,7 @@ public class AMQPProtocolDiscriminator implements IAmqpProtocolConverter {
}
IAmqpProtocolConverter next = match.create(transport);
next.setPrefetch(prefetch);
next.setProducerCredit(producerCredit);
transport.setProtocolConverter(next);
for (Command send : pendingCommands) {
next.onActiveMQCommand(send);
@ -113,4 +115,9 @@ public class AMQPProtocolDiscriminator implements IAmqpProtocolConverter {
public void setPrefetch(int prefetch) {
this.prefetch = prefetch;
}
@Override
public void setProducerCredit(int producerCredit) {
this.producerCredit = producerCredit;
}
}

67
activemq-amqp/src/main/java/org/apache/activemq/transport/amqp/AmqpProtocolConverter.java
View File

@ -30,31 +30,7 @@ import javax.jms.Destination;
import javax.jms.InvalidClientIDException;
import javax.jms.InvalidSelectorException;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQMessage;
import org.apache.activemq.command.ActiveMQTempQueue;
import org.apache.activemq.command.ActiveMQTempTopic;
import org.apache.activemq.command.Command;
import org.apache.activemq.command.ConnectionError;
import org.apache.activemq.command.ConnectionId;
import org.apache.activemq.command.ConnectionInfo;
import org.apache.activemq.command.ConsumerId;
import org.apache.activemq.command.ConsumerInfo;
import org.apache.activemq.command.DestinationInfo;
import org.apache.activemq.command.ExceptionResponse;
import org.apache.activemq.command.LocalTransactionId;
import org.apache.activemq.command.MessageAck;
import org.apache.activemq.command.MessageDispatch;
import org.apache.activemq.command.MessageId;
import org.apache.activemq.command.ProducerId;
import org.apache.activemq.command.ProducerInfo;
import org.apache.activemq.command.RemoveInfo;
import org.apache.activemq.command.RemoveSubscriptionInfo;
import org.apache.activemq.command.Response;
import org.apache.activemq.command.SessionId;
import org.apache.activemq.command.SessionInfo;
import org.apache.activemq.command.ShutdownInfo;
import org.apache.activemq.command.TransactionInfo;
import org.apache.activemq.command.*;
import org.apache.activemq.selector.SelectorParser;
import org.apache.activemq.util.IOExceptionSupport;
import org.apache.activemq.util.IdGenerator;
@ -122,6 +98,7 @@ class AmqpProtocolConverter implements IAmqpProtocolConverter {
private static final Symbol DURABLE_SUBSCRIPTION_ENDED = Symbol.getSymbol("DURABLE_SUBSCRIPTION_ENDED");
protected int prefetch;
protected int producerCredit;
protected Transport protonTransport = Proton.transport();
protected Connection protonConnection = Proton.connection();
protected Collector eventCollector = new CollectorImpl();
@ -296,8 +273,7 @@ class AmqpProtocolConverter implements IAmqpProtocolConverter {
processLinkEvent(event.getLink());
break;
case LINK_FLOW:
Link link = event.getLink();
((AmqpDeliveryListener) link.getContext()).drainCheck();
processLinkFlow(event.getLink());
break;
case DELIVERY:
processDelivery(event.getDelivery());
@ -317,6 +293,25 @@ class AmqpProtocolConverter implements IAmqpProtocolConverter {
}
}
protected void processLinkFlow(Link link) throws Exception {
Object context = link.getContext();
int credit = link.getRemoteCredit();
if (context != null && context instanceof ConsumerContext) {
ConsumerContext consumerContext = (ConsumerContext)context;
// change ActiveMQ consumer prefetch if needed
if (consumerContext.credit == 0 && consumerContext.consumerPrefetch != credit && credit > 0) {
ConsumerControl control = new ConsumerControl();
control.setConsumerId(consumerContext.consumerId);
control.setDestination(consumerContext.destination);
control.setPrefetch(credit);
consumerContext.consumerPrefetch = credit;
sendToActiveMQ(control, null);
}
consumerContext.credit = credit;
}
((AmqpDeliveryListener) link.getContext()).drainCheck();
}
protected void processConnectionEvent(Connection connection) throws Exception {
EndpointState remoteState = connection.getRemoteState();
if (remoteState == EndpointState.ACTIVE) {
@ -828,7 +823,7 @@ class AmqpProtocolConverter implements IAmqpProtocolConverter {
void onReceiverOpen(final Receiver receiver, AmqpSessionContext sessionContext) {
// Client is producing to this receiver object
org.apache.qpid.proton.amqp.transport.Target remoteTarget = receiver.getRemoteTarget();
int flow = prefetch;
int flow = producerCredit;
// use client's preference if set
if (receiver.getRemoteCredit() != 0) {
flow = receiver.getRemoteCredit();
@ -923,6 +918,9 @@ class AmqpProtocolConverter implements IAmqpProtocolConverter {
private boolean closed;
public ConsumerInfo info;
private boolean endOfBrowse = false;
public ActiveMQDestination destination;
public int credit;
public int consumerPrefetch;
protected LinkedList<MessageDispatch> dispatchedInTx = new LinkedList<MessageDispatch>();
@ -1317,12 +1315,10 @@ class AmqpProtocolConverter implements IAmqpProtocolConverter {
consumerInfo.setSelector(selector);
consumerInfo.setNoRangeAcks(true);
consumerInfo.setDestination(dest);
// use client's preference if set
if (sender.getRemoteCredit() != 0) {
consumerContext.destination = dest;
consumerInfo.setPrefetchSize(sender.getRemoteCredit());
} else {
consumerInfo.setPrefetchSize(prefetch);
}
consumerContext.credit = sender.getRemoteCredit();
consumerContext.consumerPrefetch = consumerInfo.getPrefetchSize();
consumerInfo.setDispatchAsync(true);
if (source.getDistributionMode() == COPY && dest.isQueue()) {
consumerInfo.setBrowser(true);
@ -1441,4 +1437,9 @@ class AmqpProtocolConverter implements IAmqpProtocolConverter {
public void setPrefetch(int prefetch) {
this.prefetch = prefetch;
}
@Override
public void setProducerCredit(int producerCredit) {
this.producerCredit = producerCredit;
}
}

4
activemq-amqp/src/main/java/org/apache/activemq/transport/amqp/AmqpTransportFilter.java
View File

@ -180,4 +180,8 @@ public class AmqpTransportFilter extends TransportFilter implements AmqpTranspor
public void setPrefetch(int prefetch) {
protocolConverter.setPrefetch(prefetch);
}
public void setProducerCredit(int producerCredit) {
protocolConverter.setProducerCredit(producerCredit);
}
}

2
activemq-amqp/src/main/java/org/apache/activemq/transport/amqp/IAmqpProtocolConverter.java
View File

@ -33,4 +33,6 @@ public interface IAmqpProtocolConverter {
void updateTracer();
void setPrefetch(int prefetch);
void setProducerCredit(int producerCredit);
}