[hot] | Ssis-834

SSIS‑834 – Issue Investigation & Resolution Report

Document Owner: [Your Name] – SSIS Development Lead
Date: 2026‑04‑16
Status: Closed – Fixed (v2026.1)

Example diagnostic commands/snippets

  • Check service logs (Linux systemd): 
    sudo journalctl -u your-service -S "2026-03-01" --no-pager
  • Test DB connectivity (SQL Server): 
    sqlcmd -S <server> -U <user> -P <password> -Q "SELECT TOP 1 * FROM dbo.YourTable"
  • Run ETL package (if SSIS = SQL Server Integration Services) from command line: 
    DTExec /F "C:\Packages\YourPackage.dtsx" /Rep E

(Replace placeholders with real values; run these where you have permission.) SSIS-834

3. Detailed Symptom Description

  1. Error Message (captured from SSIS logs): Example diagnostic commands/snippets

    [SSIS.Pipeline] Error: 0xC0202009 at Data Flow Task, OLE DB Destination [1]: SSIS Error Code DTS_E_OLEDBERROR.
An OLE DB error has occurred. Check the error table for more details.
[OLE DB Destination [1]] Error: 0x80004005.
The transaction is doomed because there is already a deadlock victim.

  2. Log Pattern:

    • Occurs after the ≈ 4‑5 GB of data has been transferred.
    • Intermittent – does not happen on every run, but frequency increased after a tempdb file growth operation (added 10 GB file).

  3. Observed Side‑Effects:

    • Tempdb space spikes to > 95 % during the load.
    • SQL Server error log shows Transaction (Process ID ...) was deadlocked on lock resources....

Implementation Plan (high-level, 3 phases)

  • Phase 1 — Stabilize (1 week)
    • Disable parallel runs; add email alerts for any row-count variance (>0).
    • Patch lookup caching to Full Cache and enable redirect on lookup failure.
  • Phase 2 — Remediation (2 weeks)
    • Replace script chunker, update package buffer settings, implement unique temp names.
    • Add post-load reconciliation step and fail on mismatches.
  • Phase 3 — Validation & Monitoring (1 week)
    • Run multiple test loads (edge-case files with extra newlines, large files, concurrent jobs).
    • Deploy to production during a low-impact window; monitor for 7 days and collect metrics.
    • Document changes and update runbooks.

Introduction to SSIS

SQL Server Integration Services (SSIS) is a component of the Microsoft SQL Server database software that enables developers to build data integration and workflow solutions. SSIS provides a rich set of tools for data extraction, transformation, and loading (ETL) processes. It supports a wide range of data sources and destinations, making it a versatile tool for data migration, data synchronization, and data transformation tasks. Check service logs (Linux systemd): sudo journalctl -u

Typical structure of SSIS-834 (expected fields)

  • Title: short description of the problem or feature
  • ID: SSIS-834
  • Reporter and assignee
  • Priority/severity
  • Environment: OS, DB, versions, config
  • Steps to reproduce (for a bug)
  • Expected vs actual behavior
  • Logs/error messages/stack traces
  • Attachments: screenshots, sample data, dump files
  • Status and comments/history

8. Deployment Timeline

| Date | Activity | |------|----------| | 2026‑03‑15 | Issue triage & root‑cause analysis completed. | | 2026‑03‑20 | Fix implemented in a feature branch (SSIS-834-fix). | | 2026‑03‑25 | Code review & QA sign‑off. | | 2026‑03‑28 | Staging deployment & regression testing. | | 2026‑04‑02 | Change‑control approval (CAB). | | 2026‑04‑04 | Production deployment (00:30 AM). | | 2026‑04‑10 | Post‑deployment monitoring (no regressions). | | 2026‑04‑12 | Documentation update released to the team. | | 2026‑04‑16 | Issue officially closed (SSIS‑834). |