Is MQ point to point?
The simplest form of messaging in IBM® WebSphere® MQ is point-to-point messaging. In point-to-point messaging, a sending application must know information about the receiving application before it can send a message to that application.
What is inter communication in MQ?
In WebSphere® MQ, intercommunication means sending messages from one queue manager to another. It can be running on the same platform as the local queue manager, or can be on any of the platforms supported by WebSphere MQ. This is called a distributed environment.
What is sync point in MQ?
According to the reference from the WMQ Infocenter, the syncpoint is defined as below: The decision to commit or back out the changes is taken, in the simplest case, at the end of a task. However, it can be more useful for an application to synchronize data changes at other logical points within a task.
What is MQ connection?
MQ Connections are sharable resources that can be reused across multiple MQ proxy and business services. MQ proxy and business services must connect to an MQ queue manager before accessing an MQ queue. MQ Connection resources provide the connection parameters required for connecting to a MQ queue manager.
What is MQ subscriber?
In WebSphere MQ publish/subscribe, a subscriber is an application that requests information about a specific topic from a queue manager in a publish/subscribe network. A subscriber can receive messages, about the same or different topics, from more than one publisher. Topics.
How do I create a subscription to MQ?
In the Navigator view, expand the queue manager that you want to create a new subscription on. Right-click the Subscriptions object-folder, then click New > Subscription….
What is MQ commit?
A two-phase commit process is one in which updates that a program has made to IBM MQ queues can be coordinated with updates to other resources (for example, databases under the control of Db2® ). Under such a process, updates to all resources are committed or backed out together.
How do you process uncommitted messages in MQ?
These uncommitted messages can be handled using “dspmqtrn” and “rsvmqtrn” command. In some situations the uncommitted transactions remain or the keep increasing on the queue even after resolving in-doubt transactions.
What is the meaning of MQ?
|MQ||Master Quest (Zelda game)|
|MQ||Musical Quarterly (journal; Oxford University Press; est. 1915)|
What is topic and subscription in MQ?
A topic is the subject of the information that is published in a publish/subscribe message. The IBM® MQ publish/subscribe system is a subject-based publish/subscribe system. A publisher creates a message, and publishes it with a topic string that best fits the subject of the publication.
What is a subscription queue?
If you use managed queuing a subscription queue is automatically created when you create a subscription. If you create a managed subscription, the queue manager returns an object handle to the subscriber for a subscriber queue that the queue manager creates where publications will be received.
How is a point to point messaging system built?
A point-to-point (PTP) product or application is built on the concept of message queues, senders, and receivers. Each message is addressed to a specific queue and receiving clients extract messages from the queues established to hold their messages. Queues retain all messages sent to them until the messages are consumed.
How does TLS work in IBM MQ endpoints?
How does TLS work in IBM MQ? TLS is used in MQ to secure channels. It provides both integrity and encryption protection. When a channel is enabled for TLS, any messages that are passed by the channel will be protected while in transit.
Where do I get certificate for MQ queue manager?
In a production environment, the queue manager will usually have a digital certificate issued by a certificate authority. Your MQ administrator should provide any certificates that you might need to use with your client application.