What is MQ multi-instance queue manager?

Multi-instance queue managers are instances of the same queue manager configured on different servers. One instance of the queue manager is defined as the active instance and another instance is defined as the standby instance.

What is WebSphere MQ queue Manager?

A queue manager is that part of a WebSphere MQ Series product that provides the messaging and queuing services to application programs, through the Message Queue Interface (MQI) program calls. It controls access to queues and serves as transaction (sync point) coordinator for all queue operations.

How do I start a multi-instance queue manager?

To run a multi-instance queue manager, start the queue manager on one of the servers using the strmqm -x QM1 command; the -x option permits the instance to failover. It becomes the active instance.

What is the difference between IBM MQ and WebSphere MQ?

WebSphere MQ is a messaging engine that provides assured delivery of some message/payload. MQ provides a Queue Manager: a server application that hosts Queues (to hold messahes) and Channels & Listeners (to allow Queue Managers to communicate with each other). MQ provides an API interface that implements JMS.

What is MQ cluster?

IBM WebSphere MQ clustering code ensures that remote queue definitions for cluster queues are created on any queue manager that refers to them. As with distributed queuing, an application uses the MQPUT call to put a message on a cluster queue at any queue manager in the cluster.

What is one reason an administrator would have multiple queue managers on one server?

There is performance overhead for each QM. Not to mention all the extra administrative overhead. In most cases any reason to have your queues on separate Queue Managers is also enough reason to have your Queue Managers on separate servers too.

What is the difference between MQ client and MQ server?

The output from the call is sent back to the client, which passes it back to the application. An IBM MQ server is a queue manager that provides queuing services to one or more clients. All the IBM MQ objects, for example queues, exist only on the queue manager machine (the IBM MQ server machine), and not on the client.

What is multi-instance?

In a multi-instance architecture, several companies will run their own separate instance of the application, with their own database. Each company will therefore have access to its data separately from another.

Is IBM MQ and ActiveMQ same?

ActiveMQ offers very high throughput and low latency compared to IBM MQ. ActiveMQ supports standard messaging protocols like AMQP, STOMP, MQTT etc whereas IBM MQ just comply with JMS and its own protocol. IBM MQ Light supports AMQP though. IBM MQ is much preferred in enterprise environment, probably due to the support.

What is ActiveMQ and IBM MQ?

Apache ActiveMQ is released under the Apache 2.0 License. IBM MQ is a middleware product used to send or exchange messages across multiple platforms, including applications, systems, files, and services via MQs (messaging queues).

What are different types of queues in MQ?

MQ queues can be thought of as conduits to transport messages between Queue Managers. There are four different types of MQ queues and one related object. The four different types of queues are: Local Queue (QL), Remote Queue (QR), Transmission Queue (TQ), and Dead Letter Queue, and the related object is a Channel (CH).

How do I create a cluster queue manager in MQ?

Procedure

1. Decide on the organization of the cluster and its name.
2. Decide which queue managers are to hold full repositories.
3. Alter the queue manager definitions to add repository definitions.
4. Alter the queue manager definitions to create separate cluster transmission queues for each destination.
5. Define the listeners.

Can queue managers hosted on the same server share names or ports?

a) Yes, you can define multiple MQ Listeners for the same queue manager, and having many queue managers in the same box, each with its own listener. The KEY restriction is that each Port Number MUST be different.

What is transmission queue in MQ?

Transmission queues are queues that temporarily store messages that are destined for a remote queue manager. You must define at least one transmission queue for each remote queue manager to which the local queue manager is to send messages directly.

What is the latest version of IBM WebSphere MQ?

IBM® MQ 9.2. 0 is the follow-on Long Term Support (LTS) release to IBM MQ 9.1. It is also the follow-on Continuous Delivery (CD) release to IBM MQ 9.1. 5, which is the final CD release for IBM MQ 9.1.

What is multi-tenant and multi-instance?

Multi-tenancy is a software architecture in which a software is used by multiple users or tenants. It can be accomplished by either creating a separate instance of the application for each tenant or designing the application in such a way that a single instance can be shared by the multiple users.

What is single instance and multiple-instance?

Therefore, a single-instance ERP solution is one that uses the ERP system for all your business operations—on either the front end or the back end. Multiple-instance ERP solutions are commonly used by businesses that operate globally to accommodate each country’s needs or financial systems.

Is ActiveMQ compatible with IBM MQ?

To be clear, ActiveMQ Artemis and IBM MQSeries are not directly compatible with each other and are not expected to be. This true for most (if not all) JMS broker implementations.