[SLING-11901] Extend job metrics

• Type: Task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Event 4.3.12
• Component/s: Event
• Assignee: Unassigned
• Reporter: Stefan Egli
• Created: 05/Jun/23 13:23
• Updated: 06/Jun/23 08:31

Description

Below is a list of additional metrics to add to sling.event on top of what SLING-8665 already added earlier:

• a gauge for number of configured queues
• a gauge for number of queues that have currently queued jobs
• a gauge for number of queues that have currently running jobs
• a per-queue histogram of waiting time of jobs (current "averageWaitingTime" is total average only)
• a per-queue histogram of the runtime of ongoing (not yet finished) jobs
• a per-queue histogram of durations of finished jobs (current "averageProcessingTime" is total average only)
• a per-queue gauge for number of job retries (as far as available)

Below metric is potentially controversial, as it is implementation specific:

• a per-queue gauge for number of job reassignments