Ssis-948 Link Jun 2026

This task verifies the internal version of the source .mdf file against the target instance's maximum supported version before attempting an Execute SQL Task for attachment. If a mismatch is found, it triggers a custom error path (e.g., a script to script-out the data instead of a physical attach). 3. Automatic Truncation & Staging Management

| Setting | Location | Values | Default | |---------|----------|--------|---------| | | Data Flow Task → Properties | Auto (recommended), Disabled , Manual | Auto | | MinBufferSizeKB | Data Flow Task → Properties | 1 024 – 100 000 | 1 024 | | MaxBufferSizeKB | Data Flow Task → Properties | 1 024 – 500 000 | 100 000 | | TargetCPUUtilisation | Data Flow Task → Properties | 0.3 – 0.9 (fraction) | 0.75 | | SamplingPct | Data Flow Task → Properties | 0.1 – 5 % | 1 % | ssis-948

| Layer | Description | |-------|-------------| | | Responsible for calculating optimal chunk size based on runtime statistics (available memory, target table row‑size, index fragmentation). It continuously adjusts the size (± 20 %) to keep the pipeline at ~80 % CPU utilization. | | Write Workers | A pool of lightweight Task objects (default = number of logical cores) that perform SqlBulkCopy operations in ordered fashion, preserving row order when required. | | Validation Engine | Executes user‑defined expressions (the same syntax used in SSIS Derived Column transformations) on each row before it enters a chunk. Failed rows are sent to the Error Output stream without stopping the pipeline. | | Back‑Pressure Controller | Monitors downstream queue depth. If the write workers cannot keep up, the controller throttles the upstream Source components by applying a pause on the data‑reader. This prevents OOM crashes and excessive transaction log growth. | | Telemetry & Logging | Emits granular performance counters (rows/second per worker, average chunk latency, rollback count) to the SSIS logging framework, Application Insights, or any custom event sink. | This task verifies the internal version of the source

SELECT OrderID, CustomerID, OrderDate, ShipDate, TotalAmount FROM dbo.StagingOrders WHERE LoadDate = CAST(GETDATE() AS DATE); Automatic Truncation & Staging Management | Setting |

– Find executions where ABM hit the MaxBufferSize ceiling:

The SSIS-948 error code typically indicates [provide a brief description of the error].