Hi @Andres Freund
> I'm not sure I understand the specifics here - did the high WAL generation
> rate result in the recycling taking too long? Or did checkpointer take
too
> long to write out data, and because of that recycling didn't happen
frequently
> enough?
If the WAL generation rate highl
Hi,
Adding to Andy Fan's point above:
If we increase WAL segment size from 16MB to 64MB, initializing the 64MB
WAL segment inline can cause several seconds of freeze on all write
transactions when it happens. Writing out a newly zero-filled 64MB WAL
segment takes several seconds for smaller disk
