Hello Jean,
I saw this message several times during the last days.
My first assumption was that it would exist access conflict to the mentioned file caused by the multiple tasks waiting for reporting or uploading. The database outage during the last days produced a lot of pending activities. Since the a multiple core host could have some hundred tasks waiting, it looked like that this scenario was probable. However I waited for reporting this analysis since I experienced again this particular failure several time - always on Linux based hosts - without database outage.
I came back to the start point, not understanding what does really happen.
Happy Easter,
Yves

Hi skgiven,
I experienced several times this problem (see my posts above) and I am not participating to GPU projects nor the GPU is active.
I would like to guess that there is no relation between this issue and GPU.
Yves