Thread

session waiting IO while background writer writing data

James Pang <jamespang886@gmail.com> — 2025-04-14T05:30:07Z

   pgv14.8 , we found all session waiting on "DataFileWrite", and at the
same time, background writer is doing IO and waiting on "DataFileWrite". Is
it possible to see "background writer" block or impact user sessions IO
"DatafileWrite" if both running at the same time ?

Thanks,

James