[MESOS-4664] Add allocator metrics.

• Type: Epic
• Status: Accepted
• Priority: Critical
• Resolution: Unresolved
• Component/s: allocation
• Labels: resource-management
• Epic Name: Allocator metrics
• Assignee: Unassigned
• Reporter: Benjamin Mahler
• Shepherd: Benjamin Mahler
• Created: 12/Feb/16 12:15
• Updated: 23/Apr/19 21:12

Description

There are currently no metrics that provide visibility into the allocator, except for the event queue size. This makes monitoring an debugging allocation behavior in a multi-framework setup difficult.

Some thoughts for initial metrics to add:

• How many allocation runs have completed? (counter): MESOS-4718
• How many offers has each role / framework received? (counter): MESOS-4719
• Current allocation breakdown: allocated / available / total (gauges): MESOS-4720
• Current maximum shares (gauges): MESOS-4724
• How many active filters are there for the role / framework? (gauges): MESOS-4722
• How many frameworks are suppressing offers? (gauges)
• How long does an allocation run take? (timers): MESOS-4721
• Maintenance related metrics:
  • How many maintenance events are active? (gauges)
  • How many maintenance events are scheduled but not active (gauges)
• Quota related metrics:
  • How much quota is set for each role? (gauges)
  • How much quota is satisfied? How much unsatisfied? (gauges): MESOS-4723

Some of these are already exposed from the master's metrics, but we should not assume this within the allocator.

Issue Links

• is blocked by: MESOS-4783 Disable rate limiting of the global metrics endpoint for mesos-tests execution