[amarziali]

What Does This Do

The scope diagnostics companion kept reopening an already handled command every 20 ms. In the CI job, a transient Cannot allocate memory error during one of those reads stopped its control thread and caused later tests to fail.

Consume each command before publishing its response, and retry a new command read up to five times on I/O failure.

Motivation

Additional Notes

Fixes errors like: datadog.smoketest.SpringBootGrpcCompletableFutureTest > greeter 197 th time. Its stack trace, with the report directory shortened, was:

java.lang.AssertionError: Companion agent failed:
  detail=java.io.FileNotFoundException: .../scope-diagnostics-SpringBootGrpcCompletableFutureTest-0-16862891627160856320/command (Cannot allocate memory)
  seq=393, status=error
    at datadog.smoketest.ScopeDiagnosticsClient.failure(ScopeDiagnosticsClient.java:260)
    at datadog.smoketest.ScopeDiagnosticsClient.await(ScopeDiagnosticsClient.java:176)
    at datadog.smoketest.ScopeDiagnosticsClient.request(ScopeDiagnosticsClient.java:154)
    at datadog.smoketest.ScopeDiagnosticsClient.finish(ScopeDiagnosticsClient.java:126)
    at datadog.smoketest.ProcessManager.checkScopeDiagnostics(ProcessManager.groovy:146)
    at datadog.smoketest.ProcessManager.cleanup(ProcessManager.groovy:140)

Contributor Checklist

• Format the title according to the contribution guidelines
• Assign the type: and (comp: or inst:) labels in addition to any other useful labels
• Avoid using close, fix, or any linking keywords when referencing an issue
  Use solves instead, and assign the PR milestone to the issue
• Update the CODEOWNERS file on source file addition, migration, or deletion
• Update public documentation with any new configuration flags or behaviors
• Once approved, use merge queue to merge the PR

Jira ticket: [PROJ-IDENT]

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-27T15:07:57.812603Z	bc08a41	PR opened
🔒 Security Review	✅ Completed 2026-10-27T15:09:10.282356Z	bc08a41	PR opened

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

[datadog-prod-us1-3]

More details

The client waits for each response before sending another command, so consuming the command before responding preserves the protocol and prevents completed commands from being reread. The static reviewer found no actionable regressions.

Was this helpful? React 👍 or 👎

_{Open Bits AI session}

_{🤖 Bits Code Review · Commit bc08a41}

[datadog-prod-us1-3]

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 69.35% (+9.89%)

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: bc08a41 | Docs | Give us feedback!}

[dd-octo-sts]

🟢 Java Benchmark SLOs — All performance SLOs passed

Suite	Status
Startup	🟢 pass

SLO thresholds are defined here based on automatically generated metrics. A warning is raised when results are within 5% of the threshold.

PR vs. master results

Scenario	Candidate	master	Δ (95% CI of mean)
startup:insecure-bank:iast:Agent	14.79 s	14.71 s	[-0.2%; +1.3%] (no difference)
startup:insecure-bank:tracing:Agent	13.56 s	13.81 s	[-2.8%; -0.8%] (maybe better)
startup:petclinic:appsec:Agent	17.24 s	17.16 s	[-0.5%; +1.4%] (no difference)
startup:petclinic:iast:Agent	17.16 s	17.13 s	[-0.7%; +0.9%] (no difference)
startup:petclinic:profiling:Agent	16.71 s	16.77 s	[-1.5%; +0.7%] (no difference)
startup:petclinic:sca:Agent	17.23 s	17.01 s	[+0.4%; +2.1%] (maybe worse)
startup:petclinic:tracing:Agent	16.22 s	16.20 s	[-0.9%; +1.3%] (no difference)

Commit: bc08a416 · CI Pipeline · Benchmarking Platform UI

---

Load and DaCapo benchmarks can be triggered manually in the GitLab pipeline. Results will appear in the Benchmarking Platform UI after completion.

[dd-octo-sts]

/merge

[gh-worker-devflow-routing-ef8351]

View all feedbacks in Devflow UI.

2026-10-27 15:56:48 UTC ℹ️ Start processing command /merge

---

2026-10-27 15:56:53 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in master is approximately 1h (p90).

---

2026-10-27 16:12:57 UTC 🚨 MergeQueue: This merge request is in error because of DDCI

DDCI pipeline didn't start (sourcing_failed)... Please retry.

DDCI Change Request: 5026263311099658554
You can get help from #ci-infra-support

[amarziali]

/merge

[gh-worker-devflow-routing-ef8351]

View all feedbacks in Devflow UI.

2026-10-27 16:26:44 UTC ℹ️ Start processing command /merge

---

2026-10-27 16:26:48 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in master is approximately 1h (p90).

---

2026-10-27 18:18:25 UTC ℹ️ MergeQueue: This merge request was merged