Topic status attributes
The status attributes of topics.
For each attribute, there is a brief description of what information the attribute shows. The table also gives the equivalent MQSC parameter for the DISPLAY TPSTATUS command. For more information about MQSC commands, see Administration using MQSC commands in IBM® Knowledge Center.
Attribute | Meaning | MQSC parameter |
---|---|---|
Topic String | The Topic String identifies the topic node. It matches information from a publisher to a subscriber interested in that information. | TOPICSTR |
Publish | Indicates whether publications are allowed or not. | PUB |
Subscribe | Indicates whether subscriptions are allowed or not. | SUB |
Durable subscriptions | Indicates whether durable subscriptions are allowed or not. | DURSUB |
Default priority | Displays the default priority of messages published to the topic. | DEFPRTY |
Default persistence | Displays the default persistence of messages published to the topic. | DEFPSIST |
Model durable queue | This is the managed model queue for durable subscriptions. | MDURMDL |
Model non-durable queue | This is the managed model queue for non-durable subscriptions. | MNDURMDL |
Default put response type | The default response type for message puts.
The default value is As parent. The 2 other options
available are: Sync which means the response is put synchronously. Async which means the response is put asynchronously. |
DEFPRESP |
Admin topic name | Administrative topic objects are a required in order to be able to define attributes for certain portions of the topic tree, and to set up authority checking on specific topics. | N/A |
Subscriber count | This is the number of subscribers for this topic string, including durable subscribers who are not currently connected. | SUBCOUNT |
Publisher count | The number of applications currently publishing to the topic. | PUBCOUNT |
Retained publication | Indicates if the publication is retained or not. | MQIACF_RETAINED_PUBLICATION |
Non-persistent message delivery | The delivery method for non-persistent messages published to this topic. | NPMSGDLV |
Persistent message delivery | The delivery method for persistent messages published to this topic. | PMSGDLV |
Publication scope |
The scope of publications can be controlled
administratively using the PUBSCOPE topic attribute. The attribute
can be set to one of the following 3 values:
|
PUBSCOPE |
Subscription scope |
The scope of subscriptions can be controlled
administratively using the SUBSCOPE topic attribute. The attribute
can be set to one of the following 3 values:
|
SUBSCOPE |
Cluster name | This is the name of the cluster to which the topic belongs. | CLUSTER |
Use dead-letter queue | Specifies whether the dead-letter queue is used
when publication messages cannot be delivered to their correct subscriber
queue. There are 2 possible values:
|
USEDLQ |