K, I understand where you're coming from. I should have made myself more clear in my original post. I apologize for that. You are correct, the original process will continue to write to the logfile regardless of what you rename it to and data will be lost in the process of doing this.

After the write that is occuring the next write by the logger will occur in the newly created file. But again, you have still lost the data that went to the old file after the rename.