Lazy Aggregation Error
If you get an “Error during lazy aggregation of partition %PartName% in cube %CubeName%, this is typically caused by a lazy aggregation error. To resolve this, you can:
- Is the registry key ProcessReadSegmentSize at least 60% of physical memory on the machine?
- How much disk space available for the temporary directory?
Resolution of either one of these things should remove the Lazy Aggregation Error you are seeing.