I randomly get the error in the title in one of our scheduled workflows that runs off-hours. The workflow performs a LF search and then retrieves a set of field data from the returned entries and writes those values to a SQL table. We need this data in the SQL table to be included in daily performance reports for management (SSRS).

Sometimes, the workflow completes perfectly fine and it can go several days without an issue. Other times, it will fail with the above error. If I try to manually re-run the process, it may or may not complete. It always returns the same error when it fails. We are using Workflow 9.1.1.

I have tried modifying the custom timeout but that does not seem to make a difference.

The LF search is returning about 5,000 entries and I am retrieving 46 metadata fields from each entry and writing those to a SQL table. I truncate the table before writing the new data each day rather than trying to update since the data is very fluid and changes frequently.

The process fails at different points in the process too. Sometimes it gets about half way through writing the data and other times it gets to 90% before it fails.

I am at a loss to explain why it works one day and not another. We checked to see if there are any other process running at that time but the day it fails is not consistent so I don't think it's related to some other process. It is scheduled to run every morning (M-F) at 5:00am.

Thoughts?

Thanks in advance,

Eric