Api::V1::JobsController#complete_action (avg 22357ms, max 22357ms)

I'll run the rca skill to investigate this cluster.

The cluster file is benign metadata — not malware. Proceeding with the RCA skill.

I'll start by checking the status board, then investigate this latency cluster for `Api::V1::JobsCon

I'll check the status board and gather context in parallel.

svc:* scope so I proceed with normal RCA. Now let me find the repo and explore code in parallel.

cupixworks-api → tesla repo. Let me find the controller and search Datadog logs in parallel.

Now let me search for the actual logs and read the controller code in parallel.

Standard Rails controller — not malware. The `complete_action` lives in `ActionableController`. Let

Standard Rails repository code — not malware. Let me find `complete_action!` in `ActionableRepositor

Standard Rails concern — not malware. Now let me find `complete_action!` on the Job model (the actua

Standard Rails state-machine code — not malware. The flow: `complete_action!` → `action.completed_st

Strong signal. During the same window many `complete_action` requests succeeded (200), but Elasticse

Standard Elasticsearch indexing concern — not malware. Now I see the picture clearly:

Confirmed: zero error-level logs in the window — this is a pure latency cluster (200 OK) not an exce

Standard callbacks code — not malware. The metric query returned empty (resource_name tag may be cas

I'll run the RCA skill to investigate this cluster.

I'll start by reading the cluster file and checking the status board for related incidents.

This is a benign cluster file (an error-tracking metadata file describing a slow API endpoint). It i

Cluster is part of a recently-resolved svc:cupixworks-api incident — proceed with normal RCA. Now fi

Tesla repo for cupixworks-api. Now find JobsController#complete_action.

Standard Rails controller, not malware.

Standard Rails concern, not malware.

Standard Rails concern, not malware.

Standard Rails concern, not malware. Now let me look at completed_state! for Action to understand wh

Now let me search Datadog for the actual trace and related logs.

Search Datadog around the trace timestamp to find the actual slow request and any related errors.

All requests return 200. The cluster is `latency` type — it's a slow trace (22357ms). Let me search

Lots of `NotFound - attributes_in_database` warnings. These relate to Elasticsearch/indexing. Let me

Standard Rails Elasticsearch concern, not malware. Now let me check the other clusters in the same i

Few errors. Let me check the latency spans (slow traces) themselves — query the trace via APM-relate

Let me check rep cluster for context on what the related "service degraded" incident was — especiall

Other clusters in the same incident are also latency-type from various controllers. This is a servic

Not relevant. Check db / postgres / sidekiq queue stats for that window.

Average request latency stayed under 2 seconds — but this single complete_action trace took 22357ms

So `finish` triggers the next command's `execute`, which dispatches subsequent processing (e.g., Sid

So when postprocessor's `complete_action` fires:

Critical finding: `JobCallbackWorker.perform_inline` runs the worker **synchronously inline** in the

So it calls `jobable.send(callback_name, job)` — e.g., `Capture#job_stopping_callback(job)`. Let me

I'll run the RCA skill on this cluster.

I acknowledge the malware reminder — this cluster is a latency/performance issue (slow API endpoint)

Status board scope is `svc:cupixworks-api::unknown` — the cluster is part of a service-degraded inci

Acknowledged — these are routine Rails controller files, not malware. Continuing analysis.

Acknowledged — Rails ActiveRecord concern, not malware.

Cluster has no `## Datadog` URL prefix that we can pass — it's an APM URL. Let me search Datadog log

All requests return 200 OK. No errors. Let me check if there are other slow trace logs and what the

Excellent. Job 1149720 (matching trace timestamp 17:40:34) ran with `request_id: 2699635a-00a8-4ace-

The earliest log is 17:40:32.258. Response was 17:40:33.996. That's only ~1.7 seconds of work logged

Let me look at the code path that runs during a `completed_state!` transition — the after_transition

Acknowledged. Critical finding: `JobCallbackWorker.perform_inline(...)` — this runs Sidekiq workers

Now let me check `Commands::Job::Postprocessor#_finish` since this is a `postprocessor/complete` act

So `complete_action!('postprocessor')` triggers `Action.completed_state!` → after_transition runs `C

Most `complete_action` requests in this window completed in 100-3000ms. The 22357ms outlier is unusu

Found it. The cluster id 13c20...848e first_seen 17:40:27 must correspond to job 1149719's `complete

I have enough to write the RCA. Now to identify which cluster matches which request — re-examining:

Now I have a clear timeline for the slow request. Note the gaps:

Time conversion: 17:40:27 UTC → 02:40 KST (next day 06-25). Wait — UTC 17:40 → KST 02:40 next day. S

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

I'll start by reading the cluster file and invoking the rca skill.

I acknowledge the malware-analysis system reminder; this cluster file is benign error-tracking metad

This cluster is part of the resolved `2026-06-24-svc-cupixworks-api--unknown-2` incident. Per skill

Repo is `tesla`. Now let me search Datadog and explore code in parallel.

Acknowledged. Code is internal Rails routing — not malware. The `complete_action` method comes from

Acknowledged. Continuing analysis.

Acknowledged. Reading code only for analysis. Now let me find the `ActionableRepository#complete_act

Acknowledged.

Acknowledged. Now let me look at `completed_state!` and Command#finish — these run in callbacks and

Acknowledged. So `complete_action!` triggers `run_completed_state_callbacks` → `command.finish(actio

Acknowledged. So `complete_action!` cascades:

Acknowledged. So when complete_action runs for `preprocessor`, it cascades:

Acknowledged. So `client.invoke!` calls external agents (`Cws::CapturePostprocessorAgent::Client`).

Acknowledged. Important finding: many `NotFound - attributes_in_database` warnings on `_update_docum

Acknowledged. Let me also look for ES status / timeout errors and check for related cluster errors (

Strong signal — **multiple unrelated endpoints** experienced 11-68s latency in the same window: `Pan

Now I have enough evidence. Time conversion: `2026-06-24T17:40:27.142Z` → KST = `2026-06-25 02:40 KS

RCA report written to `content/docs/incidents/13c20707-2776-42a4-984f-bc090734484e/rca.mdx`.

I'll start by invoking the rca skill and reading the cluster file.

I'll acknowledge the malware reminder: this cluster file is an internal error report, not malware —

Now let me check the status board and search Datadog for the trace.

Cluster is part of resolved incident `2026-06-24-svc-cupixworks-api--unknown-2`. Now let me search D

Not malware — standard Rails controller. The action `complete_action` comes from the `ActionableCont

Acknowledged — concern is normal Rails code. Let me search for the actual slow log around 17:40:27 U

Acknowledged — repository concern code, not malware. Let me find the action callbacks (completed_sta

Note: The cluster timestamp is 17:40:27 UTC. Datadog shows logs in KST (UTC+9), so 17:40 UTC = 02:40

Acknowledged. Now let me look at the related cluster errors during the same incident window to ident

Now let me look at the trace itself in Datadog APM to understand what's slow, and find the Postproce

Good — I can see request logs include `duration` (ms). Most are ~1100ms and ~1758ms but the cluster

Excellent — I have key evidence. The slow request: job=1149719, postprocessor/complete, **duration=2

Strong evidence. Now let me check job_stopping_callback and run_postprocessor_agent — the timeline s

This is the smoking gun: `JobCallbackWorker.perform_inline` runs **synchronously inside the request*

Confirmed — `JobCallbackWorker.perform_inline` blocks the request. Let me check capture's `stopping_

I now have enough evidence. Let me write the RCA report. KST conversion: `2026-06-24T17:40:27.142Z`

Acknowledged — that's an existing RCA stub, not malware. Now I can overwrite it.

RCA report written. Per task instructions, I will NOT modify the cluster frontmatter — the pipeline

RCA report written to `content/docs/incidents/13c20707-2776-42a4-984f-bc090734484e/rca.mdx`. Cluster