What is queue depth in MQ?

Queue depth events are related to the queue depth, that is, the number of messages on the queue. In IBM® MQ applications, queues must not become full. If they do, applications can no longer put messages on the queue that they specify.

How do you measure MQ depth?

How do I query the WebSphere MQ queue depth, messages on queues, or queues?

  1. Log on as user fmc (when using a default installation)
  2. Start the FMCQM queue manager (“strmqm FMCQM”)
  3. Run the command processor (“runmqsc FMCQM”)
  4. Enter “dis ql (RTSINPUTQ) all” (shows the amount of elements in the fmcemain input queue)

How do I create a queue in IBM WebSphere MQ?

Creating a queue by using WebSphere MQ Explorer

  1. In the Navigator view, expand the Queue Managers folder.
  2. Expand queue manager QM1.
  3. Right-click the Queues folder, then click New > Local Queue… The New Local Queue wizard starts.
  4. In the Name field, type LQ1 .
  5. Click Finish.

What is persistent queue in MQ?

Using persistent messages. WebSphere MQ messaging products provide message persistence, which defines the longevity of the message in the system and guarantees message integrity. Nonpersistent messages are lost in the event of system or queue manager failure. Persistent messages are always recovered if a failure occurs …

What is persistent queue?

persistent queue noun. A feature that you configure to take data that is in an input queue and store it to files on disk. Using a persistent queue can prevent data loss if the forwarder or indexer has too much data to process at one time.

How do I check my MQ channel status?

You can display channel status by using MQSC commands, or by using the operations and control panels. To display the status of a channel or a set of channels using the MQSC commands, use DISPLAY CHSTATUS. Note: Displaying channel status information can take some time if you have lots of channels.

How do I set the default queue manager?

Procedure

  1. Open the IBM® WebSphere MQ Explorer.
  2. Right-click IBM WebSphere MQ, then select Properties…. The Properties for WebSphere MQ panel is displayed.
  3. Type the name of the default queue manager into the Default queue manager name field.
  4. Click OK.

What is IBM MQ Queue Manager?

A queue manager is a program that provides messaging services to applications. Applications that use the Message Queue Interface (MQI) can put messages on queues and get messages from queues. The queue manager ensures that messages are sent to the correct queue or are routed to another queue manager.

What is a persistent queue?

Is RabbitMQ persistent?

The RabbitMQ persistence layer is intended to provide reasonably good throughput in the majority of situations without configuration. However, some configuration is sometimes useful.

What is default persistence in MQ?

WebSphere MQ messaging products provide message persistence, which defines the longevity of the message in the system and guarantees message integrity. Nonpersistent messages are lost in the event of system or queue manager failure. Persistent messages are always recovered if a failure occurs.