Api::V1::PointcloudsController#entity_parameters (avg 33888ms, max 33888ms)

I'll run the rca skill on the specified cluster.

I'll start by reading the cluster file and checking for related context.

Note: The system reminder about malware doesn't apply here — this is a cluster file describing a lat

This is a latency cluster (not an exception) for `Api::V1::PointcloudsController#entity_parameters`.

Internal service scope, no active incident. Proceed with normal RCA. Cluster is `cupixworks-api` → t

Standard Rails controller — not malware. `entity_parameters` is not defined here; it likely comes fr

Standard Rails code — not malware. Now let me find the pointcloud repository to understand `show` pa

Not malware — standard Rails ActiveSupport concern. This is enlightening. The `entity_parameters` me

Not malware. Pointcloud's parent chain: `Record`, then what?

Now let me check parent chain of Record:

Now let me check what `Record`'s parent_model is (via FacilityEntity presumably), and what `Facility

Now let me check Record's parent_model. Record itself has `include ::EntityParameterable::Record`, w

So chain: Pointcloud → Record (parent_model, applied) → Facility (parent, applied) → Workspace → Tea

Now let me search Datadog for actual latency evidence.

The trace occurred at 2026-07-16T10:53:08Z. Let me search related logs and metrics.

Info logs show many `entity_parameters` requests. Note the timestamps are 20:xx (UTC+9 = KST) versus

The 19:53:42 KST completion = 10:53:42 UTC. Cluster reports `first_seen: 2026-07-16T10:53:08.000Z` —

Those ThrottlingException logs are unrelated (CloudWatch Logs). Let me check overall p95/p99 latency

No data via that metric. Let me check for the specific trace 1353218467795904081 and any DB slowness

Perfect finding. The `entity_parameters` completion at 19:53:42 KST (10:53:42 UTC) is 34 seconds aft

Overall rack p95 is <1s. So this endpoint's 33.8s is an outlier. Let me check how many similar slow

The `trace.rack.request` metric works only when queried by service, not by resource. Let me check ov

Even service p99 is under 2s. So 33.8s is a rare outlier — extremely unusual. The `entity_parameters

RDS CPU normal (~17-23%). No DB-side slowness. This is likely an isolated slow request — could be GC

The pointcloud 1224014 (facility_id=15950) was created around 19:50. `entity_parameters` request sta

Per user instructions, I must not modify the cluster frontmatter — the pipeline manages `rca_status`

RCA report written to `/home/ec2-user/error-sweeper/content/docs/incidents/af2ec9cc-0c33-4316-884f-d

I'll run the RCA skill on the specified cluster.

I'll start by reading the cluster file and setting up the RCA investigation.

This is a benign error cluster file for RCA analysis, not malware. Proceeding with the RCA investiga

Scope is `svc:*` with no active incident. Proceeding with normal RCA.

Repo is `tesla`. Let me find the controller.

Not malware - standard Rails controller. There's no `entity_parameters` action defined here — it's l

Find the pointclouds route line to confirm entity_parameterable is included.

Not malware, standard Rails routes. Now let me find the `entity_parameters` action implementation us

Now find the repository method.

Not malware. Now find `Pointcloud#entity_parameters` to understand what's slow.

Not malware. Interesting — the `entity_parameters` method recursively walks up parent_models, each p

Now let me check what `EntityParameter.eager_load(:entity_parameter_group).where(entity_parameter_gr

The trace ID is from an APM span, not a log. Let me search for related logs by controller name and t

The endpoint is called frequently (every ~10-30 sec). Now search for the specific slow one around 10

2026-07-16 19:53:42 KST matches the first_seen 10:53 UTC. The slow request was for pointcloud 122401

Excellent, key evidence: `"duration": 33784.73`, `"db": 17993.72`, `"view": 0.08` — DB time is ~18s,

Indexes look correct (entity_type+entity_id). Now let me examine the traversal chain that runs for P

Pointcloud does NOT include `EntityParameterable`, so `entity_parameters` is inherited... wait, let

Pointcloud doesn't directly include `EntityParameterable`. But the repository still has `_group_enti

So only one place. Perhaps `Pointcloud` picks it up via another module. Let me check.

Pointcloud doesn't include EntityParameterable. But the request went through. Maybe the code path is

Hmm. Let me confirm by testing what Rails resolves. Actually, examining the response: the request re

I'll run the rca skill on the specified cluster.

I'll investigate this latency cluster following the RCA skill process. Starting with status board ch

Now I have context. Let me check the status board and start investigating.

`svc:*` scope — proceed with normal RCA. No active incident. Let me search for the trace and locate

Let me find the controller and search logs.

Now let me search for the specific slow request around the exact timestamp and read the controller.

The controller code is standard Rails; not malware. `entity_parameters` isn't defined here directly

Both files are standard Rails business logic — not malware. Now let me look at the model concern.

Standard Ruby code — not malware. This is the crux: `entity_parameters` traverses the model's parent

All standard Rails business logic. Let me check the metric side (Datadog spans) and understand paren

Pointcloud parent chain: Pointcloud → Record → Level → Facility → Workspace → Team (via `parent_mode

Excellent — this is the key evidence. This log corresponds to the same slow request pattern:

Cluster `first_seen`/`last_seen`: 2026-07-16T10:53:08.000Z → KST = 2026-07-16 19:53:08 KST.

An RCA report already exists at this path — it appears to be pre-existing (likely written by a previ

The existing rca.mdx is comprehensive and its analysis aligns with mine. Given the user asked me to

Wait — the cluster frontmatter uses `status:` not `rca_status:`. Re-checking: the cluster file (line

RCA complete.

RCA complete. Report at `content/docs/incidents/af2ec9cc-0c33-4316-884f-d7264f44f61b/rca.mdx`; clust