Ibm mq 在使用自动重新连接的IBM MQ客户端应用程序中检测重新连接
我正在使用配置了自动重新连接的IBM MQ JMS类（IBM MQ版本8.0.0.4）。根据文档，重新连接是隐式发生的。我想在重新连接的情况下发出一个简单的日志语句。因此，当这种情况发生时，我需要以某种方式得到通知 在第页的IBM文档中，我无意中看到了“检测故障转移”一节，其中说： 重新连接感知：向注册MQCBT\u事件处理程序事件处理程序 队列管理器。事件处理程序在MQRC_重新连接时发布 当客户端开始尝试重新连接到服务器时 成功重新连接后，MQRC_重新连接。然后，您可以运行 用于重新建立可预测状态的例程，以便客户端 应用程序可以继续处理 不幸的是，我没有找到Java/JMS的代码示例来演示如何以及在何处注册这样的事件处理程序。我不知道这在我的情况下是否得到支持。谁能给我提供正确的方向，甚至提供一个代码示例？多谢各位 2020年2月5日起的问题更新： 在从2020年1月27日收到Sashi的初始答案后，添加了我自己创建的以下代码示例Ibm mq 在使用自动重新连接的IBM MQ客户端应用程序中检测重新连接,ibm-mq,Ibm Mq,我正在使用配置了自动重新连接的IBM MQ JMS类（IBM MQ版本8.0.0.4）。根据文档，重新连接是隐式发生的。我想在重新连接的情况下发出一个简单的日志语句。因此，当这种情况发生时，我需要以某种方式得到通知 在第页的IBM文档中，我无意中看到了“检测故障转移”一节，其中说： 重新连接感知：向注册MQCBT\u事件处理程序事件处理程序 队列管理器。事件处理程序在MQRC_重新连接时发布 当客户端开始尝试重新连接到服务器时 成功重新连接后，MQRC_重新连接。然后，您可以运行 用于重新建立可
public static void main(String[] args) {
Connection connection = null;
Session session = null;
Object destination = null;
MessageProducer producer = null;
try {
JmsFactoryFactory jmsFactoryFactory = JmsFactoryFactory.getInstance(WMQConstants.WMQ_PROVIDER);
JmsConnectionFactory cf = jmsFactoryFactory.createConnectionFactory();
cf.setStringProperty(WMQConstants.WMQ_HOST_NAME, HOST);
cf.setIntProperty(WMQConstants.WMQ_PORT, PORT);
cf.setStringProperty(WMQConstants.WMQ_CHANNEL, CHANNEL);
cf.setIntProperty(WMQConstants.WMQ_CONNECTION_MODE, WMQConstants.WMQ_CM_CLIENT);
cf.setStringProperty(WMQConstants.WMQ_QUEUE_MANAGER, QM_NAME);
cf.setIntProperty(WMQConstants.WMQ_CLIENT_RECONNECT_OPTIONS, WMQConstants.WMQ_CLIENT_RECONNECT);
cf.setIntProperty(WMQConstants.WMQ_CLIENT_RECONNECT_TIMEOUT, RECONNECT_TIMEOUT);
connection = cf.createConnection();
connection.setExceptionListener(new MQExceptionListener());
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
destination = session.createQueue(QUEUE);
producer = session.createProducer((Destination)destination);
connection.start();
} catch (JMSException ex) {
LOGGER.error(ex.toString());
}
}
public class MQExceptionListener implements ExceptionListener {
public void onException(JMSException e) {
System.out.println(e);
if(e.getLinkedException() != null)
System.out.println(e.getLinkedException());
}
}
ERROR [Main.main:57] (main) com.ibm.msg.client.jms.DetailedIllegalStateException: JMSWMQ0018: Failed to connect to queue manager '<hostname>' with connection mode 'Client' and host name '<hostname>(<port>)'.
Check the queue manager is started and if running in client mode, check there is a listener running. Please see the linked exception for more information.
ERROR [Main.main:61] (main) Inner exceptions:
ERROR [Main.main:65] (main) com.ibm.mq.MQException: JMSCMQ0001: IBM MQ call failed with compcode '2' ('MQCC_FAILED') reason '2538' ('MQRC_HOST_NOT_AVAILABLE').
ERROR [Main.main:65] (main) com.ibm.mq.jmqi.JmqiException: CC=2;RC=2538;AMQ9204: Connection to host '<hostname>(<port>)' rejected. [1=com.ibm.mq.jmqi.JmqiException[CC=2;RC=2538;AMQ9204: Connection to host '<hostname>/<ip>:<port>' rejected. [1=java.net.ConnectException[Connection refused: connect],3=<hostname>/<ip>:<port>,4=TCP,5=Socket.connect]],3=<hostname>(<port>),5=RemoteTCPConnection.bindAndConnectSocket]
ERROR [Main.main:65] (main) com.ibm.mq.jmqi.JmqiException: CC=2;RC=2538;AMQ9204: Connection to host '<hostname>/<ip>:<port>' rejected. [1=java.net.ConnectException[Connection refused: connect],3=<hostname>/<ip>:<port>,4=TCP,5=Socket.connect]
ERROR [Main.main:65] (main) java.net.ConnectException: Connection refused: connect
- 只有在90秒不活动之后，客户端才开始抛出异常。我不明白，因为我的重新连接超时被设置为60秒，所以这里有30秒
- MQExceptionListener仅被调用一次（第一次）
- 没有原因代码2544（MQRC_重新连接），只有2009（MQRC_连接_断开）存在。为什么呢
- 我现在使用MQ*类，并按照建议设置重新连接选项
- 然而，重新连接仍然没有发生
2020-02-12 08:39:11628信息[MQWriter2:29]（main）正在初始化连接以写入54.161.121.207:1414上的队列DEV.queue.1。。。
2020-02-12 08:39:14552信息[应用程序运行：19]（主）正在向MQ服务器发送消息Hello Testing 1。。。
2020-02-12 08:39:15710信息[应用程序运行：19]（主）正在向MQ服务器发送消息Hello Testing 2。。。
2020-02-12 08:39:16841信息[应用程序运行：19]（主）正在向MQ服务器发送消息Hello Testing 3。。。
...
2020-02-12 08:39:41973信息[应用程序运行：19]（主）正在向MQ服务器发送消息Hello Testing 25。。。
2020-02-12 08:41:27314错误[MQExceptionListener.OneException:14]（JMSCCThreadPoolWorker-10）=====
2020-02-12 08:41:27314错误[MQExceptionListener.OneException:15]（JMSCCThreadPoolWorker-10）com.ibm.msg.client.jms.DetailedJMSExException:JMSWMQ1107:此连接出现问题。
IBM MQ JMS连接发生错误。
使用链接异常确定此错误的原因。
2020-02-12 08:41:27314错误[MQWriter2.write:49]（主）将消息发送到写入队列时出错
com.ibm.msg.client.jms.DetailedJMSExException:JMSWMQ2007:未能将消息发送到目标“DEV.QUEUE.1”。
JMS试图执行MQPUT或MQPUT1；但是，IBM MQ报告了一个错误。
使用链接异常确定此错误的原因。
位于com.ibm.msg.client.wmq.common.internal.Reason.reasonToException（Reason.java:595）
位于com.ibm.msg.client.wmq.common.internal.Reason.createException（Reason.java:215）
位于com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess（WMQMessageProducer.java:1288）
位于com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess（WMQMessageProducer.java:1245）
在com.ibm.msg.client.wmq.internal.WMQMessageProducer.access$800（WMQMessageProducer.java:76）
位于com.ibm.msg.client.wmq.internal.WMQMessageProducer$SpiIdentifiedProducerShadow.sendInternal（WMQMessageProducer.java:906）
位于com.ibm.msg.client.wmq.internal.WMQMessageProducer$ProducerShadow.send（WMQMessageProducer.java:566）
位于com.ibm.msg.client.wmq.internal.WMQMessageProducer.send（WMQMessageProducer.java:1428）
在com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.sendMessage上（JmsMessageProducerImpl.java:855）
位于com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.synchronousSendInternal（JmsMessageProducerImpl.java:2055）
位于com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.sendInternal（JmsMessageProducerImpl.java:1993）
位于com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.send（JmsMessageProducerImpl.java:1486）
位于com.ibm.mq.jms.MQMessageProducer.send（MQMessageProducer.java:293）
位于org.example.MQWriter2.write（MQWriter2.java:47）
位于org.example.Application.run（Application.java:20）
位于org.example.Application.main（Application.java:11）
原因：com.ibm.mq.MQException:JMSCMQ0001:ibm mq调用失败，代码为“2”（“MQCC_失败”）原因为“2009”（“MQRC_连接中断”）。
位于com.ibm.msg.client.wmq.common.internal.Reason.createException（Reason.java:203）
... 14多
原因：com.ibm.mq.jmqi.jmqi异常：CC=2；RC=2009
位于com.ibm.mq.jmqi.remote.api.RemoteHconn$ReconnectionState.recordFailure（RemoteHconn.java:4931）
位于com.ibm.mq.jmqi.remote.api.RemoteHco
public class Application {
private static final Logger LOGGER = LoggerFactory.getLogger(Application.class);
public static void main(String[] args) {
new Application().run();
}
private void run() {
MQWriter writer = new MQWriter();
int i = 1;
while (true) {
String message = "Hello Testing " + i;
LOGGER.info("Sending message {} to MQ server...", message);
writer.write(message);
i++;
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
public class MQConnectionDetails {
public static final String HOST = "XXX.XXX.XXX.XXX";
public static final int PORT = 1414;
public static final String QM_NAME = "QM1";
public static final String CHANNEL = "DEV.APP.SVRCONN";
public static final String QUEUE = "DEV.QUEUE.1";
public static final int RECONNECT_TIMEOUT = 60; // 1 minute
}
public class MQWriter {
private static final Logger LOGGER = LoggerFactory.getLogger(MQWriter.class);
private Connection connection = null;
private Session session = null;
private Object destination = null;
private MessageProducer producer = null;
public MQWriter() {
try {
JmsFactoryFactory jff = JmsFactoryFactory.getInstance(WMQConstants.WMQ_PROVIDER);
JmsConnectionFactory jcf = jff.createConnectionFactory();
jcf.setStringProperty(WMQConstants.WMQ_HOST_NAME, MQConnectionDetails.HOST);
jcf.setIntProperty(WMQConstants.WMQ_PORT, MQConnectionDetails.PORT);
jcf.setStringProperty(WMQConstants.WMQ_CHANNEL, MQConnectionDetails.CHANNEL);
jcf.setIntProperty(WMQConstants.WMQ_CONNECTION_MODE, WMQConstants.WMQ_CM_CLIENT);
jcf.setStringProperty(WMQConstants.WMQ_QUEUE_MANAGER, MQConnectionDetails.QM_NAME);
jcf.setIntProperty(WMQConstants.WMQ_CLIENT_RECONNECT_OPTIONS, WMQConstants.WMQ_CLIENT_RECONNECT);
jcf.setIntProperty(WMQConstants.WMQ_CLIENT_RECONNECT_TIMEOUT, MQConnectionDetails.RECONNECT_TIMEOUT);
LOGGER.info("Initializing connection to write queue {} on {}:{}...",
MQConnectionDetails.QUEUE,
MQConnectionDetails.HOST,
MQConnectionDetails.PORT);
connection = jcf.createConnection();
connection.setExceptionListener(new MQExceptionListener());
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
destination = session.createQueue(MQConnectionDetails.QUEUE);
producer = session.createProducer((Destination)destination);
connection.start();
} catch (JMSException ex) {
LOGGER.error("Error initializing connection to write queue", ex);
}
}
public void write(String message) {
try {
TextMessage textMessage = session.createTextMessage(message);
producer.send(textMessage);
} catch (Exception ex) {
LOGGER.error("Error sending message to write queue", ex);
}
}
}
public class MQExceptionListener implements ExceptionListener {
private static final Logger LOGGER = LoggerFactory.getLogger(MQExceptionListener.class);
public void onException(JMSException ex) {
LOGGER.error("=====");
LOGGER.error(ex.toString());
if (ex.getLinkedException() != null) {
LOGGER.error(ex.getLinkedException().toString());
}
LOGGER.error("=====");
}
}
2020-02-11 09:50:16,155 INFO [Application.run:21] (main) Sending message Hello Testing 13 to MQ server...
2020-02-11 09:50:17,285 INFO [Application.run:21] (main) Sending message Hello Testing 14 to MQ server...
2020-02-11 09:50:18,413 INFO [Application.run:21] (main) Sending message Hello Testing 15 to MQ server...
2020-02-11 09:50:19,555 INFO [Application.run:21] (main) Sending message Hello Testing 16 to MQ server...
2020-02-11 09:51:45,966 ERROR [MQExceptionListener.onException:14] (JMSCCThreadPoolWorker-6) =====
2020-02-11 09:51:45,966 ERROR [MQExceptionListener.onException:15] (JMSCCThreadPoolWorker-6) com.ibm.msg.client.jms.DetailedJMSException: JMSWMQ1107: A problem with this connection has occurred.
An error has occurred with the IBM MQ JMS connection.
Use the linked exception to determine the cause of this error.
2020-02-11 09:51:45,966 ERROR [MQExceptionListener.onException:17] (JMSCCThreadPoolWorker-6) com.ibm.mq.MQException: MQ delivered an asynchronous event with completion code '2', and reason '2009'.
2020-02-11 09:51:45,966 ERROR [MQExceptionListener.onException:19] (JMSCCThreadPoolWorker-6) =====
2020-02-11 09:51:45,967 ERROR [MQWriter.write:52] (main) Error sending message to write queue
com.ibm.msg.client.jms.DetailedJMSException: JMSWMQ2007: Failed to send a message to destination 'DEV.QUEUE.1'.
JMS attempted to perform an MQPUT or MQPUT1; however IBM MQ reported an error.
Use the linked exception to determine the cause of this error.
at com.ibm.msg.client.wmq.common.internal.Reason.reasonToException(Reason.java:595)
at com.ibm.msg.client.wmq.common.internal.Reason.createException(Reason.java:215)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess(WMQMessageProducer.java:1288)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess(WMQMessageProducer.java:1245)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.access$800(WMQMessageProducer.java:76)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer$SpiIdentifiedProducerShadow.sendInternal(WMQMessageProducer.java:906)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer$ProducerShadow.send(WMQMessageProducer.java:566)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.send(WMQMessageProducer.java:1428)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.sendMessage(JmsMessageProducerImpl.java:855)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.synchronousSendInternal(JmsMessageProducerImpl.java:2055)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.sendInternal(JmsMessageProducerImpl.java:1993)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.send(JmsMessageProducerImpl.java:1486)
at com.ibm.mq.jms.MQMessageProducer.send(MQMessageProducer.java:293)
at org.example.MQWriter.write(MQWriter.java:50)
at org.example.Application.run(Application.java:22)
at org.example.Application.main(Application.java:13)
Caused by: com.ibm.mq.MQException: JMSCMQ0001: IBM MQ call failed with compcode '2' ('MQCC_FAILED') reason '2009' ('MQRC_CONNECTION_BROKEN').
at com.ibm.msg.client.wmq.common.internal.Reason.createException(Reason.java:203)
... 14 more
Caused by: com.ibm.mq.jmqi.JmqiException: CC=2;RC=2009
at com.ibm.mq.jmqi.remote.api.RemoteHconn$ReconnectionState.recordFailure(RemoteHconn.java:4931)
at com.ibm.mq.jmqi.remote.api.RemoteHconn.setReconnectionFailureInner(RemoteHconn.java:2650)
at com.ibm.mq.jmqi.remote.api.RemoteParentHconn.setReconnectionFailure(RemoteParentHconn.java:152)
at com.ibm.mq.jmqi.remote.impl.RemoteReconnectThread.bestHconn(RemoteReconnectThread.java:265)
at com.ibm.mq.jmqi.remote.impl.RemoteReconnectThread.run(RemoteReconnectThread.java:115)
at com.ibm.msg.client.commonservices.workqueue.WorkQueueItem.runTask(WorkQueueItem.java:319)
at com.ibm.msg.client.commonservices.workqueue.SimpleWorkQueueItem.runItem(SimpleWorkQueueItem.java:99)
at com.ibm.msg.client.commonservices.workqueue.WorkQueueItem.run(WorkQueueItem.java:343)
at com.ibm.msg.client.commonservices.workqueue.WorkQueueManager.runWorkQueueItem(WorkQueueManager.java:312)
at com.ibm.msg.client.commonservices.j2se.workqueue.WorkQueueManagerImplementation$ThreadPoolWorker.run(WorkQueueManagerImplementation.java:1227)
2020-02-11 09:51:46,969 INFO [Application.run:21] (main) Sending message Hello Testing 17 to MQ server...
2020-02-11 09:51:46,972 ERROR [MQWriter.write:52] (main) Error sending message to write queue
com.ibm.msg.client.jms.DetailedJMSException: JMSWMQ2007: Failed to send a message to destination 'DEV.QUEUE.1'.
JMS attempted to perform an MQPUT or MQPUT1; however IBM MQ reported an error.
Use the linked exception to determine the cause of this error.
at com.ibm.msg.client.wmq.common.internal.Reason.reasonToException(Reason.java:595)
at com.ibm.msg.client.wmq.common.internal.Reason.createException(Reason.java:215)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess(WMQMessageProducer.java:1288)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess(WMQMessageProducer.java:1245)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.access$800(WMQMessageProducer.java:76)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer$SpiIdentifiedProducerShadow.sendInternal(WMQMessageProducer.java:906)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer$ProducerShadow.send(WMQMessageProducer.java:566)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.send(WMQMessageProducer.java:1428)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.sendMessage(JmsMessageProducerImpl.java:855)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.synchronousSendInternal(JmsMessageProducerImpl.java:2055)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.sendInternal(JmsMessageProducerImpl.java:1993)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.send(JmsMessageProducerImpl.java:1486)
at com.ibm.mq.jms.MQMessageProducer.send(MQMessageProducer.java:293)
at org.example.MQWriter.write(MQWriter.java:50)
at org.example.Application.run(Application.java:22)
at org.example.Application.main(Application.java:13)
Caused by: com.ibm.mq.MQException: JMSCMQ0001: IBM MQ call failed with compcode '2' ('MQCC_FAILED') reason '2009' ('MQRC_CONNECTION_BROKEN').
at com.ibm.msg.client.wmq.common.internal.Reason.createException(Reason.java:203)
... 14 more
Caused by: com.ibm.mq.jmqi.JmqiException: CC=2;RC=2009
at com.ibm.mq.jmqi.remote.api.RemoteHconn$ReconnectionState.recordFailure(RemoteHconn.java:4931)
at com.ibm.mq.jmqi.remote.api.RemoteHconn.setReconnectionFailureInner(RemoteHconn.java:2650)
at com.ibm.mq.jmqi.remote.api.RemoteParentHconn.setReconnectionFailure(RemoteParentHconn.java:152)
at com.ibm.mq.jmqi.remote.impl.RemoteReconnectThread.bestHconn(RemoteReconnectThread.java:265)
at com.ibm.mq.jmqi.remote.impl.RemoteReconnectThread.run(RemoteReconnectThread.java:115)
at com.ibm.msg.client.commonservices.workqueue.WorkQueueItem.runTask(WorkQueueItem.java:319)
at com.ibm.msg.client.commonservices.workqueue.SimpleWorkQueueItem.runItem(SimpleWorkQueueItem.java:99)
at com.ibm.msg.client.commonservices.workqueue.WorkQueueItem.run(WorkQueueItem.java:343)
at com.ibm.msg.client.commonservices.workqueue.WorkQueueManager.runWorkQueueItem(WorkQueueManager.java:312)
at com.ibm.msg.client.commonservices.j2se.workqueue.WorkQueueManagerImplementation$ThreadPoolWorker.run(WorkQueueManagerImplementation.java:1227)
public class MQWriter2 {
private static final Logger LOGGER = LoggerFactory.getLogger(MQWriter2.class);
private Connection connection = null;
private Session session = null;
private Queue destination = null;
private MessageProducer producer = null;
public MQWriter2() {
try {
MQConnectionFactory factory = new MQConnectionFactory();
factory.setTransportType(WMQConstants.WMQ_CM_CLIENT);
factory.setConnectionNameList("XXX.XXX.XXX.XXX(1414)");
factory.setQueueManager(MQConnectionDetails.QM_NAME);
factory.setChannel(MQConnectionDetails.CHANNEL);
factory.setClientReconnectOptions(WMQConstants.WMQ_CLIENT_RECONNECT);
factory.setClientReconnectTimeout(MQConnectionDetails.RECONNECT_TIMEOUT);
LOGGER.info("Initializing connection to write queue {} on {}:{}...",
MQConnectionDetails.QUEUE,
MQConnectionDetails.HOST,
MQConnectionDetails.PORT);
connection = factory.createConnection();
connection.setExceptionListener(new MQExceptionListener());
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
destination = session.createQueue(MQConnectionDetails.QUEUE);
producer = session.createProducer(destination);
connection.start();
} catch (JMSException ex) {
LOGGER.error("Error initializing connection to write queue", ex);
}
}
public void write(String message) {
try {
TextMessage textMessage = session.createTextMessage(message);
producer.send(textMessage);
} catch (Exception ex) {
LOGGER.error("Error sending message to write queue", ex);
}
}
}
2020-02-12 08:39:11,628 INFO [MQWriter2.<init>:29] (main) Initializing connection to write queue DEV.QUEUE.1 on 54.161.121.207:1414...
2020-02-12 08:39:14,552 INFO [Application.run:19] (main) Sending message Hello Testing 1 to MQ server...
2020-02-12 08:39:15,710 INFO [Application.run:19] (main) Sending message Hello Testing 2 to MQ server...
2020-02-12 08:39:16,841 INFO [Application.run:19] (main) Sending message Hello Testing 3 to MQ server...
...
2020-02-12 08:39:41,973 INFO [Application.run:19] (main) Sending message Hello Testing 25 to MQ server...
2020-02-12 08:41:27,314 ERROR [MQExceptionListener.onException:14] (JMSCCThreadPoolWorker-10) =====
2020-02-12 08:41:27,314 ERROR [MQExceptionListener.onException:15] (JMSCCThreadPoolWorker-10) com.ibm.msg.client.jms.DetailedJMSException: JMSWMQ1107: A problem with this connection has occurred.
An error has occurred with the IBM MQ JMS connection.
Use the linked exception to determine the cause of this error.
2020-02-12 08:41:27,314 ERROR [MQWriter2.write:49] (main) Error sending message to write queue
com.ibm.msg.client.jms.DetailedJMSException: JMSWMQ2007: Failed to send a message to destination 'DEV.QUEUE.1'.
JMS attempted to perform an MQPUT or MQPUT1; however IBM MQ reported an error.
Use the linked exception to determine the cause of this error.
at com.ibm.msg.client.wmq.common.internal.Reason.reasonToException(Reason.java:595)
at com.ibm.msg.client.wmq.common.internal.Reason.createException(Reason.java:215)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess(WMQMessageProducer.java:1288)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess(WMQMessageProducer.java:1245)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.access$800(WMQMessageProducer.java:76)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer$SpiIdentifiedProducerShadow.sendInternal(WMQMessageProducer.java:906)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer$ProducerShadow.send(WMQMessageProducer.java:566)
at com.ibm.msg.client.wmq.internal.WMQMessageProducer.send(WMQMessageProducer.java:1428)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.sendMessage(JmsMessageProducerImpl.java:855)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.synchronousSendInternal(JmsMessageProducerImpl.java:2055)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.sendInternal(JmsMessageProducerImpl.java:1993)
at com.ibm.msg.client.jms.internal.JmsMessageProducerImpl.send(JmsMessageProducerImpl.java:1486)
at com.ibm.mq.jms.MQMessageProducer.send(MQMessageProducer.java:293)
at org.example.MQWriter2.write(MQWriter2.java:47)
at org.example.Application.run(Application.java:20)
at org.example.Application.main(Application.java:11)
Caused by: com.ibm.mq.MQException: JMSCMQ0001: IBM MQ call failed with compcode '2' ('MQCC_FAILED') reason '2009' ('MQRC_CONNECTION_BROKEN').
at com.ibm.msg.client.wmq.common.internal.Reason.createException(Reason.java:203)
... 14 more
Caused by: com.ibm.mq.jmqi.JmqiException: CC=2;RC=2009
at com.ibm.mq.jmqi.remote.api.RemoteHconn$ReconnectionState.recordFailure(RemoteHconn.java:4931)
at com.ibm.mq.jmqi.remote.api.RemoteHconn.setReconnectionFailureInner(RemoteHconn.java:2650)
at com.ibm.mq.jmqi.remote.api.RemoteParentHconn.setReconnectionFailure(RemoteParentHconn.java:152)
at com.ibm.mq.jmqi.remote.impl.RemoteReconnectThread.bestHconn(RemoteReconnectThread.java:265)
at com.ibm.mq.jmqi.remote.impl.RemoteReconnectThread.run(RemoteReconnectThread.java:115)
at com.ibm.msg.client.commonservices.workqueue.WorkQueueItem.runTask(WorkQueueItem.java:319)
at com.ibm.msg.client.commonservices.workqueue.SimpleWorkQueueItem.runItem(SimpleWorkQueueItem.java:99)
at com.ibm.msg.client.commonservices.workqueue.WorkQueueItem.run(WorkQueueItem.java:343)
at com.ibm.msg.client.commonservices.workqueue.WorkQueueManager.runWorkQueueItem(WorkQueueManager.java:312)
at com.ibm.msg.client.commonservices.j2se.workqueue.WorkQueueManagerImplementation$ThreadPoolWorker.run(WorkQueueManagerImplementation.java:1227)
ExceptionListener exceptionListener = new ExceptionListener(){
@Override
public void onException(JMSException e) {
System.out.println(e);
if(e.getLinkedException() != null)
System.out.println(e.getLinkedException());
}
};
MQQueueConnection connection = (MQQueueConnection) cf.createQueueConnection();
connection.setExceptionListener(exceptionListener);
jcf.setIntProperty(WMQConstants.WMQ_CLIENT_RECONNECT_TIMEOUT, MQConnectionDetails.RECONNECT_TIMEOUT);
jcf.setClientReconnectOptions(WMQConstants.WMQ_CLIENT_RECONNECT);
jcf.setClientReconnectTimeout(MQConnectionDetails.RECONNECT_TIMEOUT);
package com.raiks.mqclient;
import javax.jms.Destination;
import javax.jms.JMSConsumer;
import javax.jms.JMSContext;
import javax.jms.JMSException;
import com.ibm.msg.client.jms.JmsConnectionFactory;
import com.ibm.msg.client.wmq.WMQConstants;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.raiks.mqclient.IbmMqMessageListener;
/**
* This class implements the reconnection logic for JMS brokers that don't support it
* In particular, it does it for IBM MQ with its incomprehensible reconnection algorithm
* It's expected that each connection manager receives a separate connection factory
* and a message listener - it's not guaranteed for those to be thread safe
*/
public final class IbmMqJmsConnectionManager {
private static final Logger LOGGER = LoggerFactory.getLogger(IbmMqJmsConnectionManager.class);
private static final int INITIAL_RECONNECTION_DELAY_MS = 6000;
private static final int MAX_RECONNECTION_DELAY_MS = 60000;
private static final String QUEUE_PREIX = "queue:///";
private final String connectorName;
private final JmsConnectionFactory connectionFactory;
private final String queueName;
private final IbmMqMessageListener messageListener;
private final int initialReconnectionDelayMs;
private final int maxReconnectionDelayMs;
public IbmMqJmsConnectionManager(
String connectorName,
JmsConnectionFactory connectionFactory,
String queueName,
IbmMqMessageListener messageListener,
int initialReconnectionDelayMs,
int maxReconnectionDelayMs
) {
this.connectorName = connectorName;
this.connectionFactory = connectionFactory;
this.queueName = queueName;
this.messageListener = messageListener;
this.initialReconnectionDelayMs = initialReconnectionDelayMs;
this.maxReconnectionDelayMs = maxReconnectionDelayMs;
}
/**
* Attempts to connect to a JMS broker and makes continuous retries with an increasing interval if fails
* When the maximum interval is reached, issues an error and keeps on trying
* Sets the exception listener (a callback) in the created JMSContext which calls this method when the
* connection with the broker goes down due to network issue or intentional connection termination
*/
public void connectToBrokerWithRetries() {
String connectionDetails = formatConnectionDetails();
LOGGER.info("Attempting to connect to JMS broker '{}'. Connection details = {}", connectorName, connectionDetails);
JMSContext context = null;
int sleepingTimeMs = INITIAL_RECONNECTION_DELAY_MS;
int accumulatedSleepingTimeMs = 0;
// Try to reconnect until we succeed. IMPORTANT! This is a blocking loop that never ends so it must be run in a separate thread
while (context == null) {
try {
context = connectionFactory.createContext(JMSContext.AUTO_ACKNOWLEDGE);
LOGGER.info("Successfully connected to the JMS broker '{}'. Connection details = {}", connectorName, connectionDetails);
boolean hadUnsuccessfulConnectionAttempts = accumulatedSleepingTimeMs > 0;
if (hadUnsuccessfulConnectionAttempts) {
LOGGER.warn(
"Before this successful attempt, I spent {} ms repeatedly trying to connect to '{}'. Please check the broker's health. Connection details = {}",
accumulatedSleepingTimeMs, connectorName, connectionDetails
);
}
Destination destination = context.createQueue(QUEUE_PREIX + queueName);
JMSConsumer jmsConsumer = context.createConsumer(destination);
jmsConsumer.setMessageListener(messageListener);
LOGGER.info("Successfully connected to the queue '{}' at '{}'. Connection details = {}", queueName, connectorName, connectionDetails);
// Sets a callback that will be invoked when something happens with a connection to a broker
context.setExceptionListener(
jmsException -> {
LOGGER.warn("Something bad happened to JMS broker connection to '{}'. I will try to reconnect. Connection details = {}", connectorName, connectionDetails);
connectToBrokerWithRetries();
}
);
} catch (Exception e) {
LOGGER.warn(
"Failed to create a JMS context for '{}'. I will wait for {} ms and then make a reconnection attempt. Connection details = {}",
connectorName, sleepingTimeMs, connectionDetails, e
);
context = null;
try {
Thread.sleep(sleepingTimeMs);
accumulatedSleepingTimeMs += sleepingTimeMs;
int doubledSleepingTime = sleepingTimeMs * 2;
// We double the sleeping time on each subsequent attempt until we hit the limit
// Then we just keep on reconnecting forever using the limit value
boolean nextReconnectionDelayWillExceedMaxDelay = doubledSleepingTime >= MAX_RECONNECTION_DELAY_MS;
if (nextReconnectionDelayWillExceedMaxDelay) {
sleepingTimeMs = MAX_RECONNECTION_DELAY_MS;
LOGGER.error(
"Repeatedly failed to create a JMS context for {} ms. I will keep on trying every {} ms but please check the broker availability. Connection details = {}",
accumulatedSleepingTimeMs, sleepingTimeMs, connectionDetails
);
} else {
sleepingTimeMs = doubledSleepingTime;
}
} catch (InterruptedException ex) {
throw new RuntimeException(ex);
}
}
}
}
private String formatConnectionDetails() {
String connectionDetails = "[]";
try {
connectionDetails = String.format(
"[ host = %s, port = %d, queueManager = %s, channel = %s, user = %s ]",
connectionFactory.getStringProperty(WMQConstants.WMQ_HOST_NAME),
connectionFactory.getIntProperty(WMQConstants.WMQ_PORT),
connectionFactory.getStringProperty(WMQConstants.WMQ_QUEUE_MANAGER),
connectionFactory.getStringProperty(WMQConstants.WMQ_CHANNEL),
connectionFactory.getStringProperty(WMQConstants.USERID)
);
} catch (Exception e) {
LOGGER.warn("Failed to get the connection details. This is not critical, but the details will be unavailable");
}
return connectionDetails;
}
}
LOGGER.info("Starting the initial connection thread");
Thread cftInitialConnectionThread = new Thread(cftConnectionManager::connectToBrokerWithRetries);
cftInitialConnectionThread.start();