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我在尝试使用 pymqi 向 IBM MQ 发送消息时遇到问题。我正在做的一个项目

  • 从 DB2 读取
  • 准备数据WorkerProcess
  • WorkerProcess根据该数据做出一些决定并向 MQ 发送消息

当WorkerProcess尝试为 MQ 提交消息时，我收到一个错误：

Stacktrace:
    worker_process.py:
        self.mq.commit()
    mq_service.py:
        self.qmgr.commit()
    pymqi/__init__.py line 1689, in commit
        raise MQMIError (rv[0], rv[1])
pymqi.MQMIError: MQI Error. Comp: 2, Reason 2012: FAILED: MQRC_ENVIRONMENT_ERROR

代码和堆栈跟踪是手动输入的，可能包含拼写错误。

波纹管代码是我正在做的伪代码。

非常感谢任何帮助和/或建议。

主要.py：

c_processors = []
for i in range(num_of_proccessors):
    p = WorkerProcess()
    p.start()
    c_processors.append(p)

for p in c_processors:
    p.join()

worker_process.py

class WorkerProcess(Process):
    def __init__(self):
        Process.__init__(self)
        self.mq = MQService()

    def run(self):
        self.mq.send_message('test')
        self.mq.commit()
        self.mq.close_connection()

mq_service.py

class MQService():
    
    def __init__(self):
        self.connect()
        self.pmd = pymqi.MD()
        self.pmd.Format = pymqi.CMQC.MQFMT_STRING
        self.pmo = pymqi.PMO(Options=pymqi.CMQC.MQPMO_FAIL_IF_QUIESCING)
        self.pmo.Options |= pymqi.CMQC.MQGMO_SYNCPOINT

    def connect(self):
        self._connect_to_qmgr(manager,chanel,host,port,user,password) #these arguments are retrieved from config
        self._q = pymqi.Queue(self.qmgr, queue_name) 

    def _connect_to_qmgr(self,manager,chanel,host,port,user,password):
        self.qmgr = pymqi.QueueManager(None)
        _cd = pymqi.CD()
        _cd.ChannelName = channel.encode('utf-8')
        _cd.ConnectionName = f"{host} ({port})".encode('utf-8')
        _cd.ChannelType = pymqi.CMQC.MQCHT_CLNTCONN
        _cd.TransportType = pymqi.CMQC.MQXPT_TCP
        _connect_options = pymqi.CMQC.MQCNO_HANDLE_SHARE_BLOCK

        _qmgr.connect_with_options(manager, cd=_cd, opts=_connect_options, user=user, password=password)

    def send_message(self, message):
        self._q.put(message, self.pmd, self.pmo)

    def commit(self):
        self.qmgr.commit()
    
    def rollback(self):
        self.qmgr.backout()

    def close_connection(self):
        self.qmgr.disconnect()

编辑： 附加信息：

  • 我正在运行 IBM MQ 客户端版本 9.1.0.1。

  • 文件中没有错误AMQERR0*.LOG。

  • LD_LIBRARY_PATH 已设置

  • 重构代码时出现此错误。

以下是正在运行的代码（重构之前）：

为了简洁和可读性，函数签名中的一些参数被替换为 (args ) *

主要.py：


def connect_to_mq():
    return MQService(args*)  # these arguments are read from Config file


def process_chunk(args*): 
    _mq = connect_to_mq()
    _mq.send_message('test')
    _mq.commit()
    _mq.close_connection()

c_processors = []
for i in range(num_of_proccessors):
    p = Process(target=process_chunk, args=(args*))
    p.start()
    c_processors.append(p)

for p in c_processors:
    p.join()

mq_service.py

class MQService():
    
    def __init__(self, args*):
        self.pmd = pymqi.MD()
        self.pmd.Format = pymqi.CMQC.MQFMT_STRING
        self.pmo = pymqi.PMO(Options=pymqi.CMQC.MQPMO_FAIL_IF_QUIESCING)
        self.pmo.Options |= pymqi.CMQC.MQGMO_SYNCPOINT
        self.connect_to_qmgr(args*)
        self.connect_to_queue(args*)


    def _connect_to_qmgr(self,manager,chanel,host,port,user,password):
        self.qmgr = pymqi.connect(manager, 
                                  chanel, 
                                  "%s (%s)" % (host, port), 
                                  user=user, 
                                  password=password)
   
    def connect_to_queue(q_name):
        self._q = pymqi.Queue(self.qmgr, q_name)

 
    def send_message(self, message):
        self._q.put(message, self.pmd, self.pmo)

    def commit(self):
        self.qmgr.commit()
    
    def rollback(self):
        self.qmgr.backout()

    def close_connection(self):
        self.qmgr.disconnect()
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