WSMQ队列限制

Question

我可以在单个连接和单个会话中打开多少个队列？我现在可以打开128个队列并向他们发送消息.如果我尝试打开129,我会收到以下错误...

谢谢

错误:

com.ibm.msg.client.jms.DetailedResourceAllocationException: JMSWMQ2008: Failed to open MQ queue 'TestQueue_129'. JMS attempted to perform an MQOPEN, but WebSphere MQ reported an error. Use the linked exception to determine the cause of this error. Check that the specified queue and queue manager are defined correctly.
    at com.ibm.msg.client.wmq.common.internal.Reason.reasonToException(Reason.java:579)
    at com.ibm.msg.client.wmq.common.internal.Reason.createException(Reason.java:219)
    at com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess(WMQMessageProducer.java:1000)
    at com.ibm.msg.client.wmq.internal.WMQMessageProducer.checkJmqiCallSuccess(WMQMessageProducer.java:956)
    at com.ibm.msg.client.wmq.internal.WMQMessageProducer.access$800(WMQMessageProducer.java:59)
    at com.ibm.msg.client.wmq.internal.WMQMessageProducer$SpiIdentifiedProducerShadow.initialise(WMQMessageProducer.java:727)
    at com.ibm.msg.client.wmq.internal.WMQMessageProducer.<init>(WMQMessageProducer.java:931)
    at com.ibm.msg.client.wmq.internal.WMQSession.createProducer(WMQSession.java:783)
    at com.ibm.msg.client.jms.internal.JmsSessionImpl.createProducer(JmsSessionImpl.java:1122)
    at com.ibm.msg.client.jms.internal.JmsQueueSessionImpl.createSender(JmsQueueSessionImpl.java:131)
    at com.ibm.mq.jms.MQQueueSession.createSender(MQQueueSession.java:147)
    at com.ibm.mq.jms.MQQueueSession.createProducer(MQQueueSession.java:248)
    at MyQueue.<init>(MyQueue.java:25)
    at Main.main(Main.java:54)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:45)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:599)
    at com.ibm.ws.client.applicationclient.launchClient.createContainerAndLaunchApp(launchClient.java:788)
    at com.ibm.ws.client.applicationclient.launchClient.main(launchClient.java:493)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:45)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:599)
    at com.ibm.wsspi.bootstrap.WSLauncher.launchMain(WSLauncher.java:213)
    at com.ibm.wsspi.bootstrap.WSLauncher.main(WSLauncher.java:93)
    at com.ibm.wsspi.bootstrap.WSLauncher.run(WSLauncher.java:74)
    at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:45)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:599)
    at org.eclipse.core.launcher.Main.invokeFramework(Main.java:340)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:282)
    at org.eclipse.core.launcher.Main.run(Main.java:981)
    at com.ibm.wsspi.bootstrap.WSPreLauncher.launchEclipse(WSPreLauncher.java:330)
    at com.ibm.wsspi.bootstrap.WSPreLauncher.main(WSPreLauncher.java:108)
Caused by: com.ibm.mq.MQException: JMSCMQ0001: WebSphere MQ call failed with compcode '2' ('MQCC_FAILED') reason '2017' ('MQRC_HANDLE_NOT_AVAILABLE').
    at com.ibm.msg.client.wmq.common.internal.Reason.createException(Reason.java:206)
    ... 39 more
WSCL0100E: Exception received: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:45)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:599)
    at com.ibm.ws.client.applicationclient.launchClient.createContainerAndLaunchApp(launchClient.java:788)
    at com.ibm.ws.client.applicationclient.launchClient.main(launchClient.java:493)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:45)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:599)
    at com.ibm.wsspi.bootstrap.WSLauncher.launchMain(WSLauncher.java:213)
    at com.ibm.wsspi.bootstrap.WSLauncher.main(WSLauncher.java:93)
    at com.ibm.wsspi.bootstrap.WSLauncher.run(WSLauncher.java:74)
    at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:45)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:599)
    at org.eclipse.core.launcher.Main.invokeFramework(Main.java:340)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:282)
    at org.eclipse.core.launcher.Main.run(Main.java:981)
    at com.ibm.wsspi.bootstrap.WSPreLauncher.launchEclipse(WSPreLauncher.java:330)
    at com.ibm.wsspi.bootstrap.WSPreLauncher.main(WSPreLauncher.java:108)
Caused by: java.lang.NullPointerException
    at MyQueue.sendMessage(MyQueue.java:39)
    at Main.main(Main.java:55)
    ... 27 more

Answer 1

这由队列管理器的MAXHANDS属性控制。

默认值为 256。根据您访问队列的方式，每个类可能会打开两次，从而导致最多 128 个打开队列。

您可以使用DIS QSTATUS命令在 runmqsc 中显示队列句柄。