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possibly resolve https://issues.apache.org/activemq/browse/AMQ-2564 - add test and fix issue with slave replication effecting response correlator when message is queued waiting for space, the id can get out of sync, causing a missed reply to the orignal producer, which would result in a hang 

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@946974 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Gary Tully 2010-05-21 11:40:27 +00:00
parent 4386e118a1
commit 10a976674e
2 changed files with 59 additions and 1 deletions
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3
activemq-core/src/main/java/org/apache/activemq/broker/ft/MasterBroker.java
View File

@ -341,8 +341,9 @@ public class MasterBroker extends InsertableMutableBrokerFilter {
* A message can be dispatched before the super.send() method returns so -
* here the order is switched to avoid problems on the slave with
* receiving acks for messages not received yet
* copy ensures we don't mess with the correlator and command ids
*/
sendSyncToSlave(message);
sendSyncToSlave(message.copy());
super.send(producerExchange, message);
}

57
activemq-core/src/test/java/org/apache/activemq/broker/ft/MasterSlaveProducerFlowControlTest.java Normal file
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@ -0,0 +1,57 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.broker.ft;
import org.apache.activemq.ProducerFlowControlTest;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.broker.region.policy.VMPendingQueueMessageStoragePolicy;
import org.apache.activemq.broker.region.policy.VMPendingSubscriberMessageStoragePolicy;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class MasterSlaveProducerFlowControlTest extends ProducerFlowControlTest {
static final Log LOG = LogFactory.getLog(MasterSlaveProducerFlowControlTest.class);
protected BrokerService createBroker() throws Exception {
BrokerService service = super.createBroker();
service.start();
BrokerService slave = new BrokerService();
slave.setBrokerName("Slave");
slave.setPersistent(false);
slave.setUseJmx(false);
// Setup a destination policy where it takes lots of message at a time.
// so that slave does not block first as there is no producer flow control
// on the master connector
PolicyMap policyMap = new PolicyMap();
PolicyEntry policy = new PolicyEntry();
// don't apply the same memory limit as the master in this case
//policy.setMemoryLimit(10);
policy.setPendingSubscriberPolicy(new VMPendingSubscriberMessageStoragePolicy());
policy.setPendingQueuePolicy(new VMPendingQueueMessageStoragePolicy());
policy.setProducerFlowControl(true);
policyMap.setDefaultEntry(policy);
slave.setDestinationPolicy(policyMap);
slave.setMasterConnectorURI(connector.getConnectUri().toString());
slave.start();
return service;
}
}