My acitvemq server always print error below :
2014-07-12 16:14:27,820 | ERROR | Could not accept connection :
org.apache.activemq.transport.tcp.ExceededMaximumConnectionsException:
Exceeded the maximum number of allowed client connections.
See the 'maximumConnections' property on the TCP transport configuration URI
in the ActiveMQ configuration file (e.g., activemq.xml)
| org.apache.activemq.broker.TransportConnector
| ActiveMQ Transport Server Thread Handler:
tcp://0.0.0.0:61616?maximumConnections=1000&wireformat.maxFrameSize=104857600
When I restart the server it will be ok. But after a few days the error come out again. I don't why the connections always increase to 1000.
My server config:
<!-- activeMQ -->
<bean id="jmsConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL" value="${jms.brokerURL}"></property>
</bean>
<!-- Spring Caching -->
<bean id="cachingConnectionFactory"
class="org.springframework.jms.connection.CachingConnectionFactory">
<property name="targetConnectionFactory" ref="jmsConnectionFactory" />
<property name="sessionCacheSize" value="10" />
</bean>
<!-- Spring JMS Template -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="cachingConnectionFactory" />
<property name="explicitQosEnabled" value="true" />
<property name="priority" value="4" />
</bean>
<bean id="scoreQueue" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg value="SCORE" />
</bean>
<bean id="scoreMessage" class="com.tt.score.mq.server.ScoreMessage"></bean>
<bean id="scoreListener"
class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsConnectionFactory"></property>
<property name="destination" ref="scoreQueue"></property>
<property name="messageListener" ref="scoreMessage"></property>
<property name="concurrentConsumers" value="10" />
<property name="maxConcurrentConsumers" value="100" />
<property name="sessionAcknowledgeModeName" value="CLIENT_ACKNOWLEDGE" />
</bean>
My client config xml:
<!-- Spring Caching -->
<bean id="cachingConnectionFactory"
class="org.springframework.jms.connection.CachingConnectionFactory">
<property name="targetConnectionFactory" ref="jmsConnectionFactory" />
<property name="sessionCacheSize" value="10" />
</bean>
<!-- Spring JMS Template -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="cachingConnectionFactory" />
<property name="explicitQosEnabled" value="true" />
<property name="priority" value="4" />
</bean>
<bean id="messageProducer" class="com.tt.score.mq.client.MessageProducer">
<property name="jmsTemplate" ref="jmsTemplate" />
<property name="scoreQueue" ref="scoreQueue" />
</bean>
<bean id="scoreQueue" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg value="SCORE" />
</bean>
Other info:
- acitvemq server : 5.8.0
- client acitvemq : 5.4.2
- spring : 3.0.7
- spring-jms : 3.0.7
We use transactionManager so the DefaultMessageListenerContainer's cachelevel will be set to none.
---update add dao config----------------------------------
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName"><value>${jdbc.driverClass}</value></property>
<property name="username"><value>${jdbc.user}</value></property>
<property name="url"><value>${jdbc.jdbcUrl}</value></property>
<property name="password">
<bean class="com.tongbanjie.commons.util.EncryptDBPasswordFactory">
<property name="password" value="${jdbc.password}" />
</bean>
</property>
<property name="maxActive"><value>${jdbc.maxActive}</value></property>
<property name="initialSize"><value>${jdbc.initialSize}</value></property>
<property name="maxWait"><value>60000</value></property>
<property name="maxIdle"><value>${jdbc.maxIdle}</value></property>
<property name="minIdle"><value>5</value></property>
<property name="removeAbandoned"><value>true</value></property>
<property name="removeAbandonedTimeout"><value>180</value></property>
<property name="timeBetweenEvictionRunsMillis"><value>60000</value></property>
<property name="minEvictableIdleTimeMillis"><value>1800000</value></property>
<property name="defaultAutoCommit" value="false" />
<property name="connectionProperties">
<value>bigStringTryClob=true;clientEncoding=UTF-8;defaultRowPrefetch=50;serverEncoding=ISO-8859-1</value>
</property>
</bean>
<bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" />
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource">
<ref bean="dataSource"/>
</property>
</bean>
<!-- myBatis -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:META-INF/mybatis/score-configuration.xml" />
<property name="mapperLocations" value="classpath*:META-INF/mybatis/mapper/*.xml" />
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="commonSqlSessionDao" abstract="true">
<property name="sqlSessionFactory">
<ref bean="sqlSessionFactory" />
</property>
</bean>
-----post the code that we how to use the template now
the jmsTemplate wrapped in a class
public class MessageProducer {
private JmsTemplate jmsTemplate;
private ActiveMQQueue scoreQueue;
public void sendScoreQueue(Map<String, String> userMap) {
sendMessage(this.scoreQueue, userMap);
}
private void sendMessage(Destination destination, final Map<String, String> map) {
this.jmsTemplate.send(destination, new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
MapMessage message = session.createMapMessage();
for (String key : map.keySet()) {
message.setStringProperty(key, (String) map.get(key));
}
return message;
}
});
}
｝
And we use a thead to send call the MessageProducer class's sendScoreQueue method.
As follows:
//the code is old and ugly.that is the original position we call the mq.
ThreadUtils.execute(new Thread(new SendMsgThread(dycc, ScoreMQSendType.SEND_TYPE_SCORE)));
///
public class ThreadUtils {
protected static ThreadPoolExecutor executor = null;
public static Properties Props = null;
public static void execute(Thread thread) {
executor.execute(thread);
}
static {
if (executor == null)
Integer corePoolSize = 5;
Integer maximumPoolSize = 10;
Integer keepAliveTime = 3000;
executor = new ThreadPoolExecutor(corePoolSize, maximumPoolSize, keepAliveTime, TimeUnit.MINUTES,
new LinkedBlockingQueue());
}
}
public class SendMsgThread implements Runnable {
private Log log = LogFactory.getLog(SendMsgThread.class);
private Map<String, String> map;
private String type;
private static MessageProducer producer = null;
public SendMsgThread(Map<String, String> map, String type){
this.type = type;
this.map = map;
}
public void run() {
try {
if(type.equals(ScoreMQSendType.SEND_TYPE_SCORE) || type.equals(ScoreMQSendType.SEND_TYPE_REGISTER)) {
producer.sendMessage(map);
}
} catch (Exception e) {
this.log.error("sendMsgThread sendScoreQueue error.", e);
}
}
static {
if (producer == null) producer =
(MessageProducer )SpringContextHolder.getBean(MessageProducer .class);
}
}
