IBM MQ Overview (IBM Message Queue)

IBM MQ Overview (IBM Message Queue)

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  IBM Message Queue(IBM MQ) Juarez Barbosa Junior Senior Software Architect jbarbosa@ie.ibm.com
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  © IBM 20162 MOM – Introduction • MOM – Message-oriented middleware − IBM MQ, IBM MessageSight (MQTT), Tuxedo, TIBCO, HiveMQ (MQTT), RabbitMQ (MQTT/AMQP), ActiveMQ (AMQP), Microsoft MSMQ - Brokers − Asynchronous communication – Message Sender does not need to wait for response from Message Receiver (fire-and-forget / non-blocking) − Loose coupling – message producer does not need to know the details of message consumer, they do not need to be active at the same time − Point-to-point (queue), Publish-subscribe (topic)
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  © IBM 20163 MOM – Introduction • MOM – Message-oriented middleware − Transactions – atomicity, consistency, isolation, durability, scalability, security, acknowledgment, routing, transformation, filtering, priority, data enrichment, data aggregation (async request, delayed response), persistence (QoS) − Message – Binary or Character data − Queue – Managed object that implements the point-to-point messaging model and can receive and store messages in a MOM − Topic – Managed object that implements the publish-subscribe messaging model and receive and store messages in a MOM
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  © IBM 20164 MOM – Message Oriented Middleware
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  © IBM 20165 MOM – Message Oriented Middleware • Point-to-Point (Queue) − One to one (1…1), many to one (*…1) − One queue per receiver, one message received by one receiver
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  © IBM 20166 MOM – Message Oriented Middleware • Publish-Subscribe (Topic) − One to Many (1…*), Many to Many (*…*) − Topic, same message may be received by many receivers
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  © IBM 20167 MOM – Message Oriented Middleware • Point-to-Point (FIFO Queue) − All messages have the same priority − Messages are delivered in the order they enter the queue - FIFO
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  © IBM 20168 MOM – Message Oriented Middleware • Point-to-Point (Priority Messages / Queue) − Queue buffers the messages and orders them according to their priority when they enter the queue (priority applied at point T in time) − Messages are delivered in the order they enter the queue - FIFO
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  © IBM 20169 MOM x Email - Analogy MOM Email MOM Message SMTP Message Queue (point to point) Mailbox Consumer POP3 / IMAP Mail Client Producer SMTP Client Queue Manager Mail Transfer Agent Routing Info To: Cc: Bcc: addresses Topic (Publish subscribe) Mailing list Message ACK Read Receipt TTL Expires Header Communication for Systems Communication for People (users)
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  © IBM 201610 IBM MQ – Introduction • IBM Message Queue − MQM / MQSeries (1992), WebSphere MQ (2002), IBM MQ (2014) − IBM Message Oriented Middleware − Clients: COBOL, C, C++, MQ Java, JMS, .NET, IBM MQI, others − Platforms / OS: LUW, zOS, System i, System p, HP-UX, Solaris, others − Protocols: TCP, UDP, HTTP(S), SMTP, FTP, Proprietary protocols − Architecture − MQ Objects: Queue Manager, Messages, Queues, Process Definitions, Channels, Listeners, others
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  © IBM 201611 IBM MQ – MQ Objects • IBM Message Queue Objects – Queue Manager (QMGR) − Queue Manager - Manager, orchestrator for a given message queue scheme. The QM coordinates the MQ objects, sends messages to other queue managers over a message channel. The queue manager may be co-located with an application or located in a separate server host.
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  © IBM 201612 MOM – Message Oriented Middleware • IBM Message Queue Objects – Queue Types − Application: Local, Remote, Alias, Model, Dynamic − MQ internal: Dead-letter, Initiation, Transmission, Cluster, Comand, Event, Reply-to
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  © IBM 201613 IBM MQ – MQ Objects • IBM Message Queue Objects − Process Definition - Defines a feature that can start an application in response to a trigger event. Attributes include application type, application ID (path) and data (MIME type) to the application − Channels - Logical communication link provides communication path from one MQM to another or from external client to MQM. It shields applications from underlying protocols. − Listeners – They listen and accept remote connections and start inbound channels.
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  © IBM 201614 IBM MQ – Demo − WMQ CLI (Command Line Interface) − WMQ Explorer (GUI) − Basic MQ Commands (MQSC, Control) − Create QMGR, Create Queue, Send Message, Retrieve Message