jms生产商与春天的表现

Question

i created a simple producer consumer simulation based on spring, jms and activemq, i'm trying to reach high performance from both sides, producers and consumers,

Connection settings :

<tx:annotation-driven />
<bean id="transactionManager" class="org.springframework.jms.connection.JmsTransactionManager">
     <property name="connectionFactory"  ref="connectionFactory" />
</bean>

<amq:connectionFactory id="amqConnectionFactory" brokerURL="failover:(tcp://${broker.url}:61616)"  />

<bean id="connectionFactory"
    class="org.springframework.jms.connection.CachingConnectionFactory">
    <property name="targetConnectionFactory" ref="amqConnectionFactory" />
</bean>

<amq:queue id="queue" physicalName="queue" />

<beans:bean id="jsonMessageConverter" class="XXXXX.converter.JsonMessageConverter" />

Consumer settings :

<jms:listener-container concurrency="10"
    acknowledge="auto" prefetch="1" message-converter="jsonMessageConverter" transaction-manager="transactionManager"

    >
    <jms:listener id="queueListener_1" destination="ooIntegrationQueue"
        ref="myMessageListenerAdapter" />
</jms:listener-container>


<beans:bean id="myMessageListenerAdapter"
    class="org.springframework.jms.listener.adapter.MessageListenerAdapter" >
    <beans:property name="delegate" ref="consumer"/>
</beans:bean>


<beans:bean id="consumer" class="XXX.ConsumerImpl"/>

Producer settings :

<beans:bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"
    p:connectionFactory-ref="connectionFactory" p:messageConverter-ref="jsonMessageConverter"
    p:defaultDestination-ref="ooIntegrationQueue" p:sessionTransacted="true" />

starting with the consumer, i managed to consume about 25 messages per second, which is extremely slow, i discovered the bottleneck to be the fact that i am using transactions, after googling for a bit, and playing with the configs, i found out that after autowiring the DefaultMessageListenerContainer and changing the cachelevel to

listenerContainer.setCacheLevelName("CACHE_SESSION") 

my performance increases to about 1500 messages per second while still having transactions.

my problem is now with the producer which is still stuck at about 25 operations per sec, my producer test is simple :

int numOfMessages = getNumberOfMessages();


double startTime = System.currentTimeMillis();

for (int i = 1; i <= numOfMessages; i++) {
    jmsTemplate.convertAndSend("HelloWorld" + i);
}

double endTime = System.currentTimeMillis();

double totalTime=(endTime-startTime)/1000;
System.out.println("Time - "+totalTime+" seconds");
System.out.println("EPS - "+numOfMessages/totalTime);

i'm wondering how to reach similiar performances with the producer, since it now bottlenecks the entire system.

Answer 1

Sorry if this answer comes to late to help the original poster. I recently investigated JmsTemplate performance. Even with the same delivery and acknowledgment modes, native JMS code seemed much faster than JmsTemplate . The problem turned out to be that ActiveMQ normally defaults to async sending, but when you use JmsTemplate it instead uses sync sending. This dramatically reduces performance. You can set ActiveMQConnectionFactory 's useAsyncSend property to true to force async sending. More details here: JmsTemplate is not evil

Answer 2

JMSTemplate does a walk of ConnectionFactiory -> Connection -> Session -> MessageProducer, closing each object after each send. To get around this, wrap your amqConnectionFactory bean with a org.apache.activemq.pool.PooledConnectionFactory, and use that under the template rather than a CachingConnectionFactory.

Answer 3

Try to change acknowledge method to from AUTO to CLIENT_ACKNOWLEDGE. For more information look to the Specification .

Answer 4

What is the default delivery mode for ActiveMQ? is it a persistent queue? if so, how is it configured? how remote is the broker? These answers will determine the basic cost of sending to queue by answering how long it takes the server to ack the send (ie network RTT + potential cost of persisting the message to disk synchronously).

The other possibility is that you're actually creating a new connection, session and messageproducer on every send. This is pretty costly to say the least. It will be worth confirming whether this is happening (eg add debug logging to spring, check amq admin console for connection churn) or not as a basic sanity check. By the looks of it CachingConnectionFactory should cache a single session and messageproducer by default and convertAndSend should close the session it obtains after sending which results in a returning that cached session to the pool. This should mean it is relatively quick (spring jms goes through an awful lot of code just to send a message) to get the cached session on the next send.