MQ原因代码详解与应用范围

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"MQ reason code 是IBM WebSphere MQ（以前称为MQSeries）中用于标识异常情况的错误代码。这些代码提供了关于系统发生问题的具体信息，包括导致代码被触发的情况、关联的完成代码以及针对该代码建议的程序员响应。MQ reason codes 通常与消息传递过程中的错误或异常相关，帮助开发者和系统管理员诊断和解决MQ相关的技术问题。" MQ reason codes 是一系列数值，用于在WebSphere MQ中表示不同类型的错误或异常。每个reason code 都有一个对应的解释，描述了特定的环境导致此代码被触发的原因，以及可能伴随的完成代码（Completion Code）。完成代码通常为MQCC_OK（表示操作成功）、MQCC_WARNING（警告）或MQCC_FAILED（失败）。例如，MQRC_NONE（0X'0000'）表示调用正常完成，完成代码为MQCC_OK，这意味着没有发生任何问题，程序员无需采取任何行动。另一方面，MQRC_APPL_FIRST（0X'0384'）和MQRC_APPL_LAST（0X'03E7'）是一组范围，用于应用自定义的reason codes。数据转换退出（data-conversion exit）可以在这两个值之间返回reason codes，以表示其检测到的特定条件。这些代码的响应将由数据转换退出的编写者定义，可能需要程序员根据返回的代码采取相应的处理措施。 MQ reason codes 的详细列表按字母顺序提供在“Reason code cross reference”中，方便查找和理解。通过这些代码，开发者可以深入了解WebSphere MQ在遇到问题时的内部工作原理，从而进行有效的故障排除和调试。对于系统管理员和开发者来说，理解并熟悉MQ reason codes 至关重要，因为它可以帮助他们快速识别并解决问题，保持消息传递系统的稳定运行。在遇到MQ reason code 异常时，应该参考IBM提供的官方文档，结合完成代码和描述来确定下一步的解决步骤。

 The parameter pointer is not valid, or (for the MQCONN or MQCONNX call)

points to read-only storage. (It is not always possible to detect parameter pointers

that are not valid; if not detected, unpredictable results occur.)

 The value specified was not returned by a preceding MQCONN or MQCONNX

call.

 The value specified has been made invalid by a preceding MQDISC call.

 The handle is a shared handle that has been made invalid by another thread

issuing the MQDISC call.

 The handle is a shared handle that is being used on the MQBEGIN call (only

nonshared handles are valid on MQBEGIN).

 The handle is a nonshared handle that is being used a thread that did not create the

handle.

 The call was issued in the MTS environment in a situation where the handle is not

valid (for example, passing the handle between processes or packages; note that

passing the handle between library packages is supported).

Completion Code:

MQCC_FAILED

Programmer Response:

Ensure that a successful MQCONN or MQCONNX call is performed for the queue

manager, and that an MQDISC call has not already been performed for it. Ensure that the

handle is being used within its valid scope (see the description of MQCONN in the

WebSphere MQ Application Programming Guide).

 On z/OS, also check that the application has been linked with the correct stub; this

is CSQCSTUB for CICS applications, CSQBSTUB for batch applications, and

CSQQSTUB for IMS applications. Also, the stub used must not belong to a

release of the queue manager that is more recent than the release on which the

application will run.

2019 (X'07E3')

MQRC_HOBJ_ERROR

Explanation:

The object handle Hobj is not valid, for one of the following reasons:

 The parameter pointer is not valid, or (for the MQOPEN call) points to read-only

storage. (It is not always possible to detect parameter pointers that are not valid; if

not detected, unpredictable results occur.)

 The value specified was not returned by a preceding MQOPEN call.

 The value specified has been made invalid by a preceding MQCLOSE call.

 The handle is a shared handle that has been made invalid by another thread

issuing the MQCLOSE call.

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