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fix(source-s3): upgrade CDK to v7.21.2 to fix CSV trailing empty header regression - #79599
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…er regression Bumps airbyte-cdk from 7.21.1 to 7.21.2, which includes the fix for CSV files with trailing empty headers failing with config_error. Resolves airbytehq/oncall#12736 Co-Authored-By: bot_apk <apk@cognition.ai>
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Co-Authored-By: bot_apk <apk@cognition.ai>
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/ai-canary-prerelease
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Canary Prerelease Testing — StartedStarting canary prerelease testing for Steps in progress:
Session: https://app.devin.ai/sessions/f765419b14af4875a0b72b0ba9bb1250 |
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Canary Prerelease — Phase 2-3 CompleteBreaking change gate: PASS — Non-breaking patch bump. CDK v7.21.2 only relaxes CSV header validation (strips trailing empties instead of rejecting them). No schema, spec, state, or stream changes. Safely reversible. Prerelease version: Canary set selected (8 connections):
Coverage: 1 internal + 5 TIER_2 + 2 TIER_1, across US/EU/US-Central, with Google Sheets/BigQuery/Snowflake destinations. Status: Awaiting Slack HITL approval before pinning. For full customer details, see the linked private oncall issue. |
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Deploy preview for airbyte-docs ready!
Deployed with vercel-action |
Canary Deployment: Pins AppliedAll 8 canary connections have been pinned to
Monitoring begins now. Will post periodic updates every 1-2 hours for a minimum 2-4 hour monitoring window. For full customer details, see the linked private issue. Session: https://app.devin.ai/sessions/f765419b14af4875a0b72b0ba9bb1250 |
Canary Monitoring Update (T+1h, 11:04 UTC)Monitoring duration: ~1 hour since pins applied
Totals: 11 completed syncs across 8 connections — 100% success rate, 0 failures Overall status: HEALTHY — No errors, no warnings, no regressions observed. Next check: ~2h mark (12:00 UTC). |
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↪️ Triggering Reason: Open PR with CI fully passing, CDK upgrade to fix CSV trailing empty header regression. |
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🧪 Fix Validation Evidence🟢 Outcome: Fix ProvenRegression tests confirm no regressions (all 4 steps ✅). Canary prerelease validated on 8 live connections with 11 syncs at 100% success rate. The fix correctly relaxes CSV header validation to strip trailing empty headers without breaking existing functionality. 🚦 Next Steps
📋 Connector & PR DetailsConnector: 📝 Evidence PlanProving CriteriaA sync that previously failed with Disproving CriteriaAny regression test step fails on the target that succeeded on the control, OR canary connections show new failures after pinning. Testing StrategyRegression tests only — source-s3 is a source connector without forced OAuth write-back. The fix is a general logic change (CSV header validation relaxation). This is an edge-case-only fix that only activates on CSVs with trailing empty headers; GSM test data is unlikely to exercise this code path, so ✅-no-difference is the expected outcome. Canary prerelease (completed by prior session) provides the behavioral evidence. Cases Attempted
✅ Pre-flight Checks
📊 Detailed Evidence LogRegression Test (Attempt 1 — GSM, all streams)
Canary Prerelease (completed by prior session)
Note: Connection IDs and detailed logs are recorded in the linked private issue. |
Canary Prerelease: Final ReportConnector: SummaryThe prerelease performed flawlessly across all 8 canary connections over a 2-hour monitoring window. 17 sync jobs completed with a 100% success rate and zero failures. Connections spanned 4 destination types (Snowflake, BigQuery, Google Sheets), 2 regions (US, EU), and all customer tiers (Internal, TIER_1, TIER_2). Detailed Results
Note: 4 additional syncs completed pre-pin (old version) also succeeded. Counts above reflect syncs that ran after version pins were applied. Canary VerdictOverall Status: ✅ PASS The prerelease performed well across all canary connections. No errors, no warnings, no regressions observed. The CDK v7.21.2 upgrade (CSV trailing empty header fix) is safe for formal release. Next steps:
For full customer details, see the linked private issue. |
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↪️ Triggering Reason: Prove-fix completed — FIX PROVEN ✅. Regression tests all passed, canary prerelease validated on 8 live connections with 11 syncs at 100% success rate. |
Reviewing PR for connector safety and quality.
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What
Upgrades
airbyte-cdkfrom 7.21.1 to 7.21.2 in source-s3 to pick up the fix for CSV files with trailing empty headers failing withconfig_error.Resolves https://github.com/airbytehq/oncall/issues/12736:
CDK fix PR: airbytehq/airbyte-python-cdk#1044
How
airbyte-cdkto v7.21.2 viapoetry lockmetadata.yamldockerImageTagCDK v7.21.2 strips trailing empty CSV headers (from trailing delimiters) while still rejecting interior empty headers and blank rows.
Review guide
airbyte-integrations/connectors/source-s3/poetry.lock— CDK 7.21.1 → 7.21.2airbyte-integrations/connectors/source-s3/pyproject.toml— version 4.15.7 → 4.15.8airbyte-integrations/connectors/source-s3/metadata.yaml— dockerImageTag 4.15.7 → 4.15.8docs/integrations/sources/s3.md— changelog entryUser Impact
Connections syncing CSV files with trailing empty headers (common in externally generated CSVs like US Bank ACH files) will no longer fail with
config_error. Customers currently pinned to v4.15.3 can upgrade.Can this PR be safely reverted and rolled back?
Link to Devin session: https://app.devin.ai/sessions/fe8a17db8ccc4484a231583efb869590