Rotating Logfiles

How does loki/promtail handle rotating log files?
Could it be possible that the log file gets somehow blocked by promtail?

I currently have a python application which is writing ~ 5GB of logs every day which i am compressing from at regular intervals to save disk space.
Firstly, the file is renamed and then it gets compressed.
Is it possible that promtail will block this process while processing/reading it?

Please moderate your language on this public forum.


On a windows system, yes this is possible.
On most linux filesystems I would not expect any blocking.

is there a way to avoid Promtail from blocking the rotating file?
In my case the file can not rotate, because its blocked by Promtail