Api::V1::FieldsController#update (avg 1164ms, max 1164ms)

Now I have the cluster details. This is a latency cluster for `Api::V1::FieldsController#update` tak

Let me search Datadog for logs around this latency event and explore the source code.

The logs show successful 200 responses for FieldsController. No errors found. Let me search more spe

I can see a rapid burst of sequential updates to annotation fields (review `2y44ie`, annotations 730

The `update` method calls `repository_instance.update(params)` then `super`. Let me trace the reposi

Now let me look at the `BaseRepository#update` method and the parent controller's `update` method to

Now let me understand the full `BaseRepository#update` flow and what `set_parameters` does for field

Now let me look at the `BaseRepository#show` method used in `set_field` (the before_action) and unde

Now let me look at `BaseRepository.show` more to understand the permission_joins call path, and chec

Now I can see the full picture. The `set_field` before_action calls `repository_instance.show(params

Now let me look at after_action callbacks that might affect latency — e.g., CDC or partial JSON work

Let me check the `Eventable::Field` and `Cachable::Field` concerns — these are likely to trigger aft

Now let me check the `touch: true` on `belongs_to :fieldable` — this could be causing cascading upda

Now I have a clear picture. Let me also check the `belongs_to :fieldable, touch: true` impact — this

Excellent! This confirms the latency pattern. Average is 332ms, median is 260ms, but it spikes up to

The global metrics are almost identical to the `ap-southeast-2` metrics, indicating most of this tra

Now let me write the RCA report. First, let me create the directory.

Now let me update the cluster frontmatter to mark `rca_status: completed`. But wait — the cluster fi

RCA report written to `./content/docs/incidents/299f81c5-ed5c-48cd-8277-7056f0c1702a/rca.mdx`.

RCA complete. The report has been written to `./content/docs/incidents/299f81c5-ed5c-48cd-8277-7056f