Api::V1::SessionsController#show (avg 1728ms, max 1728ms)

Now I have the cluster details. This is a latency cluster for `Api::V1::SessionsController#show` wit

Let me search Datadog logs and identify the source code repository.

The logs show SessionsController#show is returning 200 successfully across many requests. The latenc

The metrics show the average duration for SessionsController#show is typically between 35-180ms, wit

Now let me look at the parent `ApiController`, the `VerificationController` (which sets `@session`),

Now I can see the key insight: `SessionSerializer` calls `.reload` on both `session.user` and `sessi

Now I have a clear picture. The `render_api` method at line 58 calls `session` which triggers the `s

Now I have a comprehensive view. Let me check the `default_session` method and search for any DB-rel

Now I have a clear picture of the full code path. Let me also look at the `Cognito.get_user_by_acces

Now I have the full picture. Let me update my todos and search for any additional APM/trace data spe

Now let me query the APM p99 metrics to understand typical latency vs the outlier, and check if ther

I see I/O timeout errors around the same time. The max duration metrics show the max avg values were

I now have enough evidence to write the RCA. The key findings are:

Now let me update the todo list and note that the instructions say NOT to modify the cluster frontma

RCA report written to `./content/docs/incidents/908ee9e2-4eb1-48a2-8f55-fd672b44021d/rca.mdx`.