chore(ci): retry transient go module network errors in merge-queue checks - #4006
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Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe change adds a configurable retry script with exponential backoff. GitHub Actions jobs and the Docker builder use it for Go module, tool installation, and license commands. ChangesRetry integration
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Other Suggested reviewers: Merge Risk: ⚪ Minimal · up to The retry helper and its CI and Docker integrations have no supported unresolved issue in the supplied context, so the change is ready to merge. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Actionable comments posted: 3
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Inline comments:
In @.github/scripts/retry.sh:
- Around line 8-9: Validate RETRY_MAX_ATTEMPTS as a positive integer and
RETRY_SLEEP_SECONDS as a non-negative integer immediately after their defaults
are assigned and before the retry loop or first attempt; reject invalid values
with a clear error and exit nonzero, while preserving the existing retry
behavior for valid values.
- Line 9: Update the default value assigned to RETRY_SLEEP_SECONDS in the retry
script to 5 seconds so the initial delay and subsequent exponential backoff
align with the stated retry policy.
- Around line 10-14: Update the retry loop to execute the original arguments
directly via "$@" instead of rebuilding and reparsing them through cmd and sh
-c; retain any command-string representation only for logging, and preserve the
existing retry behavior.
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.github/scripts/retry.sh.github/workflows/checks.yamlDockerfile
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jakedoublev
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I wish a better approach was feasible, but we're basically blocked in CI at this point with the quantity of failures + merge queue.
…ecks Add .github/scripts/retry.sh, a small POSIX-sh retry wrapper with exponential backoff (2s/4s/8s/16s, ~30s total), and wrap every go-mod-proxy/sumdb network call site in checks.yaml and the root Dockerfile. Signed-off-by: Daniel Mihalcik <dmihalcik@virtru.com>
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Proposed Changes
Reviewed the last 14 days of
merge_groupruns (the GitHub merge queue): every singleChecksfailure — 11/11 — was an external network flake, not a real code/test bug.sum.golang.org/proxy.golang.orgtransient HTTP/2 resets (stream error: stream ID N; INTERNAL_ERROR; received from peer) duringgo mod download/go mod verify/go get/go install. Hit unrelated jobs independently:image build, severalgomatrix legs,integration tests,benchmark tests,license check,Cucumber BDD Tests.golangci-lint config verifytiming out fetching its JSON schema fromgolangci-lint.run— already fixed by chore(ci): DSPX-4607 bump golangci-lint to v2.13.2 #3965 (golangci-lint v2.8.0 → v2.13.2).How often this actually bounces the queue
Of the 33
Checksruns triggered bymerge_groupin the last 14 days (32 completed, 1 in flight):go mod/module-proxy network error (this PR's fix)(One run hit both issues in the same run, so the two failure-cause rows don't sum to 11.)
In other words, over this window a PR sitting in the merge queue had roughly a 1-in-3.5 chance of getting bounced, and better than 4-in-5 of those bounces (9/11) were this exact network flake rather than anything wrong with the change itself. PR #3089 alone was bounced 3 separate times by 3 different, unrelated jobs — a strong flake signature, since a real bug would fail the same job deterministically.
Example failing runs (all
go mod/module-proxy network flakes fixed by this PR):integration tests,image build,Cucumber BDD Tests,go (service)all failed on the samesum.golang.orgreset (PR feat(core): Make audit logger types extensible #3089, attempt 1 of 3)image buildfailed again on a different module (PR feat(core): Make audit logger types extensible #3089, attempt 2 of 3)license check,benchmark tests,go (examples)failed (PR feat(core): Make audit logger types extensible #3089, attempt 3 of 3)image build+Protocol Buffer Lint and Gencode Up-to-date check(PR chore(sdk): extract integrityAlgorithmString, createPolicyBinding, signAssertions #3934)platform-xtest(PR fix(sdk): map ReadAt plaintext offsets from cumulative segment sizes #3933)go (sdk)+Protocol Buffer Lint and Gencode Up-to-date check(PR feat(authz): wrap streaming/bidi handlers in Connect authN/authz interceptors #3867)integration tests+go (lib/fixtures)(PR fix(ers): fix direct entitlements silently dropped on token-identifier decisions #3908)This PR addresses the remaining category: no step in any of these jobs retried on a transient module-proxy/sumdb error, so a single Google-side blip anywhere would bounce the whole merge-queue entry.
Fix: add
.github/scripts/retry.sh, a small dependency-free POSIX-sh retry wrapper (no new third-party GitHub Action), and call it from plainrun:blocks at every remaining Go-module network call site. By default it retries up to 5 times with exponential backoff (2s, 4s, 8s, 16s between attempts), so it will keep retrying a transient failure for about 30 seconds before giving up and failing the job for real:gojob:go mod download/go mod verify(per matrix leg)integrationjob:go mod download/go mod verify/grpcurlinstallbenchmarkjob:go mod download/go mod verifygo get/go installlineslicensejob: the threego-licenses checkinvocationsDockerfile'sgo mod download/go mod verify(shared by theimageandtests-bddDocker builds)Ticket: DSPX-4639
Checklist
CI-only change; no product code touched, so no test or doc updates apply.
Testing Instructions
Local
Verified locally:
docker build .succeeds end-to-end, YAML parses,actionlint/shellcheck/shfmtreport zero findings.retry.shexecs the wrapped command directly ("$@", no re-parsing through a second shell), so the real exit status always propagates and arguments with spaces/quotes are preserved as-is.🤖 Generated with Claude Code
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