eG Monitoring
 

Measures reported by QpidConsumerTest

A Consumer is created when an Advanced Message Queuing Protocol (AMQP) connection wishes to receive messages from a message source (such as a Queue). When there are multiple competing consumers attached to the same message source, the Broker attempts to distribute messages from the queue in a “fair” manner. When there are multiple consumers having differing priorities, the Broker will always attempt to deliver a message to a higher priority consumer before attempting delivery to a lower priority consumer. When a consumer is created with no explicit priority provided, the consumer is given the highest possible priority. Using this test, the administrators can monitor whether/not the current state of the consumer is active ensuring that the consumers receive messages from the Queue without any distortion.

Outputs of the test: One set of results for the target Apache Qpid Java Broker.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
state Indicates the current state of the consumer.  

The values reported by this measure and its numeric equivalents are mentioned in the table below:

Measure Value Numeric Value
Stopped 0
Quiesced 50
Uninitialized 60
Unavailable 70
Errored 80
Deleted 90
Active 100

Note:

By default, this measure reports the Measure Values listed in the table above to indicate the current state of the consumer.
dataOut It indicates the total size of all messages delivered by the consumers. MB

 
messagesOut It indicates the total number of messages delivered by the consumers. Messages

 
unacknowledgedData It indicates the total size of all messages currently unacknowledged by consumers. MB

A very low value is desired for these measures.
unacknowledgedMessages It indicates the total number of messages currently unacknowledged by consumers. Messages