Topic status attributes for subscribers

Topic status attributes for subscribers

For a given topic, the set of attributes that hold subscriber status information.

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.

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

Subscription ID Identifier is assigned by the queue manager as a unique identifier for the subscription. SUBID

User The user identifier that is associated with the subscription. SUBUSER

Durable Indicates whether durable subscriptions are allowed or not. DURSUB

Type The Type of subscription indicates how the subscription was created. The subscription types are:
API: Subscription created via an MQSUB API request.

ADMIN: Subscription created via a DEF SUB MQSC or PCF command. ADMIN is also used to indicate that a subscription has been modified via administrative command.

PROXY: Subscription created internally for routing publications through a queue manager network.
SUBTYPE

Connection ID The currently active CONNID that has opened this subscription. It is used to detect local publications. ACTCONN

Resume date The date of the most recent MQSUB which connected to this subscription. RESMDATE

Resume time The time of the most recent MQSUB which connected to this subscription. RESMTIME

Message count The number of messages put to the destination specified by this subscription since it was created, or since the queue manager was restarted, whichever is more recent. This number might not reflect the total number of messages that are, or have been, available to the consuming application. This is because it might also include publications that were partially processed but then undone by the queue manager due to a publication failure, or publications that were made within syncpoint that were rolled-back by the publishing application. NUMMSGS

Multicast reliability indicator (%) Indicator of the reliability of the multicast messages. The values are expressed as a percentage. A value of 100 indicates that all messages are being delivered without problems. A value less than 100 indicates that some of the messages are experiencing network issues. To determine the nature of these issues, you can enable event message generation, using the COMMEV parameter of the COMMINFO objects, and examine the generated event messages. Two values are returned:

The first value is based on recent activity over a short period of time.
The second value is based on activity over a longer period of time. If no measurement is available the values are shown as blanks.

MCASTREL

Parent topic: Status attributes

Related concepts

Topics

Related tasks

View the status of objects

Related reference

Status attributes
Topic status attributes for publishers

Last updated: 2020-10-04

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
Subscription ID	Identifier is assigned by the queue manager as a unique identifier for the subscription.	SUBID
User	The user identifier that is associated with the subscription.	SUBUSER
Durable	Indicates whether durable subscriptions are allowed or not.	DURSUB
Type	The Type of subscription indicates how the subscription was created. The subscription types are: API: Subscription created via an MQSUB API request. ADMIN: Subscription created via a DEF SUB MQSC or PCF command. ADMIN is also used to indicate that a subscription has been modified via administrative command. PROXY: Subscription created internally for routing publications through a queue manager network.	SUBTYPE
Connection ID	The currently active CONNID that has opened this subscription. It is used to detect local publications.	ACTCONN
Resume date	The date of the most recent MQSUB which connected to this subscription.	RESMDATE
Resume time	The time of the most recent MQSUB which connected to this subscription.	RESMTIME
Message count	The number of messages put to the destination specified by this subscription since it was created, or since the queue manager was restarted, whichever is more recent. This number might not reflect the total number of messages that are, or have been, available to the consuming application. This is because it might also include publications that were partially processed but then undone by the queue manager due to a publication failure, or publications that were made within syncpoint that were rolled-back by the publishing application.	NUMMSGS
Multicast reliability indicator (%)	Indicator of the reliability of the multicast messages. The values are expressed as a percentage. A value of 100 indicates that all messages are being delivered without problems. A value less than 100 indicates that some of the messages are experiencing network issues. To determine the nature of these issues, you can enable event message generation, using the COMMEV parameter of the COMMINFO objects, and examine the generated event messages. Two values are returned: The first value is based on recent activity over a short period of time. The second value is based on activity over a longer period of time. If no measurement is available the values are shown as blanks.	MCASTREL