[APLO-78] Provide message statistics (for topics) in the REST API

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0-beta5
• Fix Version/s: 1.0-beta6
• Component/s: apollo-broker, apollo-dto, apollo-web
• Assignee: Hiram R. Chirino
• Reporter: Lionel Cons
• Created: 25/Aug/11 05:36
• Updated: 12/Dec/11 23:41
• Resolved: 12/Dec/11 23:41

Description

The aggregated queue metrics (/broker/queue-metrics) are very useful to understand how the broker works as a whole.

However, they seem to contain only queue information (and probably dsub information, please confirm) but not topic information.

For monitoring purposes, it would be useful to also collect the received/sent messages (with count/size) on all topics.

This way, one could for instance find out how many messages are received by the broker, per unit of time, to graph this information.

This information should appear both per-topic (/broker/virtual-hosts/<name>/topics/<id>) and aggregated (/broker/topic-metrics?).