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docs(destination-bigquery): expand troubleshooting section for write failures#74099

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docs(destination-bigquery): expand troubleshooting section for write failures#74099
Ian Alton (ian-at-airbyte) wants to merge 2 commits intomasterfrom
devin/1772242297-bigquery-troubleshooting-docs

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@ian-at-airbyte Ian Alton (ian-at-airbyte) commented Feb 28, 2026

What

The BigQuery destination troubleshooting documentation only covered permission and HMAC-key errors. Users encountering common write-failure scenarios (socket timeouts, HTTP 400 upload errors, broken pipes, load job timeouts) had no guidance, leading to poor chatbot coverage and unanswered support questions.

This was identified via a Kapa.ai coverage-gap analysis of user conversations.

How

Expands the existing ## Troubleshooting permission issues section into a broader ## Troubleshooting section with subsections for:

  1. Permission errors — existing content, moved under a subheading
  2. "Socket file not created" timeout — platform data-channel setup failure; written for both Cloud and self-hosted audiences without assuming deployment knowledge
  3. HTTP 400 "Request had invalid euc header" — transient BigQuery resumable-upload session error
  4. Broken pipe errors — transport-level network interruption during upload
  5. Load job timeouts — 30-minute wait timeout on BigQuery load jobs

Updates since last revision

  • Rewrote the "Socket file not created" section per reviewer feedback: removed internal jargon ("platform sidecar", "socket data-channel mode", version callout), added separate guidance for Cloud vs. self-hosted users, and led with "retry" as the first action.

Review guide

  1. docs/integrations/destinations/bigquery.md — single file changed

Key items for review:

  • Anchor breakage: The heading rename from ## Troubleshooting permission issues## Troubleshooting / ### Permission errors changes the URL anchor. Verify no internal docs link to #troubleshooting-permission-issues.
  • Technical accuracy of advice: Troubleshooting steps were derived from connector source code analysis (ClientSocket.kt, BigqueryBatchStandardInsertLoader.kt, BigQueryUtils.kt). Verify the recommendations (chunk size reduction, retry guidance, etc.) align with real-world support experience.
  • "euc header" characterization: Described as a transient resumable-upload session invalidation. This is a reasonable inference but the exact GCP-side root cause is somewhat opaque.
  • Socket section tone: Rewritten to avoid assuming deployment knowledge — confirm the Cloud and self-hosted bullets are each appropriate for their audience.

User Impact

Users encountering BigQuery write failures now have documented troubleshooting steps instead of relying solely on support or community forums.

Can this PR be safely reverted and rolled back?

  • YES 💚

Link to Devin run: https://app.devin.ai/sessions/b7a79ba7bae14745801247e9fe775f35
Requested by: Ian Alton (@ian-at-airbyte)

…failures

Co-Authored-By: ian.alton@airbyte.io <ian.alton@airbyte.io>
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Comment on lines 204 to 211
- This indicates the Airbyte platform sidecar did not create the inter-process communication
channel in time. The connector itself is not at fault.
- **Self-hosted deployments:** Verify the platform version supports socket-mode destinations.
Check worker pod logs for sidecar startup failures or OOM events.
- **Running multiple connections to the same destination simultaneously** can cause resource
contention. Try staggering connection schedules.
- If the error persists, contact [Airbyte Support](https://support.airbyte.com) with the full
destination logs.
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I really don't like this answer. Reasons:

  • It's very technical, which in itself isn't bad, but it assumes the reader knows a lot about an Airbyte deployment
  • It only talks about self-hosted.
  • Many self-hosted people are community users, who can't call support.
  • No indication of whether Cloud users would be affected by this, or how to resolve it (probably phone support in that case).

Please provide a more streamlined explanation that addresses the needs of each audience and does not over-assume their background knowledge.

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Rewrote this section in 3fc4e97 to address your feedback:

  • Removed the technical jargon ("platform sidecar", "socket data-channel mode", version callout)
  • Leads with "retry" as the first action
  • Covers both Cloud and self-hosted audiences with separate bullets
  • Doesn't assume the reader knows about pod logs or OOM — just mentions checking logs for container restarts

Devin session

…r audience

Co-Authored-By: ian.alton@airbyte.io <ian.alton@airbyte.io>
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