feat: add provisioner job queue wait time histogram and jobs enqueued counter (#21869)

This PR adds some metrics to help identify job enqueue rates and
latencies. This work was initiated as a way to help reduce the cost of
the observation/measurement itself for autostart scaletests, which
impacts our ability to identify/reason about the load caused by
autostart. See: https://github.com/coder/internal/issues/1209

I've extended the metrics here to account for regular user initiated
builds, prebuilds, autostarts, etc. IMO there is still the question here
of whether we want to include or need the `transition` label, which is
only present on workspace builds. Including it does lead to an increase
in cardinality, and in the case of the histogram (when not using native
histograms) that's at least a few extra series for every bucket. We
could remove the transition label there but keep it on the counter.

Additionally, the histogram is currently observing latencies for other
jobs, such as template builds/version imports, those do not have a
transition type associated with them.

Tested briefly in a workspace, can see metric values like the following:
-
`coderd_workspace_builds_enqueued_total{build_reason="autostart",provisioner_type="terraform",status="success",transition="start"}
1`
-
`coderd_provisioner_job_queue_wait_seconds_bucket{build_reason="autostart",job_type="workspace_build",provisioner_type="terraform",transition="start",le="0.025"}
1`

---------

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Callum Styan
2026-02-12 13:40:47 -08:00
committed by GitHub
co-authored by Claude Opus 4.5
parent b1f48f8d47
commit 5f3be6b288
20 changed files with 363 additions and 24 deletions
+2
View File
@@ -158,11 +158,13 @@ deployment. They will always be available from the agent.
| `coderd_oauth2_external_requests_rate_limit_used` | gauge | The number of requests made in this interval. | `name` `resource` |
| `coderd_oauth2_external_requests_total` | counter | The total number of api calls made to external oauth2 providers. 'status_code' will be 0 if the request failed with no response. | `name` `source` `status_code` |
| `coderd_prebuilt_workspace_claim_duration_seconds` | histogram | Time to claim a prebuilt workspace by organization, template, and preset. | `organization_name` `preset_name` `template_name` |
| `coderd_provisioner_job_queue_wait_seconds` | histogram | Time from job creation to acquisition by a provisioner daemon. | `build_reason` `job_type` `provisioner_type` `transition` |
| `coderd_provisionerd_job_timings_seconds` | histogram | The provisioner job time duration in seconds. | `provisioner` `status` |
| `coderd_provisionerd_jobs_current` | gauge | The number of currently running provisioner jobs. | `provisioner` |
| `coderd_provisionerd_num_daemons` | gauge | The number of provisioner daemons. | |
| `coderd_provisionerd_workspace_build_timings_seconds` | histogram | The time taken for a workspace to build. | `status` `template_name` `template_version` `workspace_transition` |
| `coderd_template_workspace_build_duration_seconds` | histogram | Duration from workspace build creation to agent ready, by template. | `is_prebuild` `organization_name` `status` `template_name` `transition` |
| `coderd_workspace_builds_enqueued_total` | counter | Total number of workspace build enqueue attempts. | `build_reason` `provisioner_type` `status` `transition` |
| `coderd_workspace_builds_total` | counter | The number of workspaces started, updated, or deleted. | `action` `owner_email` `status` `template_name` `template_version` `workspace_name` |
| `coderd_workspace_creation_duration_seconds` | histogram | Time to create a workspace by organization, template, preset, and type (regular or prebuild). | `organization_name` `preset_name` `template_name` `type` |
| `coderd_workspace_creation_total` | counter | Total regular (non-prebuilt) workspace creations by organization, template, and preset. | `organization_name` `preset_name` `template_name` |