Re: should we enable log_checkpoints out of the box?

On 2021-Nov-02, Nikolay Samokhvalov wrote:

> Back to checkpoint logging. With log_checkpoints = off, and high write
> activity with low max_wal_size we're already "spamming" the logs with
> lots of "checkpoints are occurring too frequently" – and this happens
> very often, any DBA running a restore process on Postgres with default
> max_wal_size (1GB, very low for modern DBs) saw it.
> 
> Without details, this definitely looks like "spam"

Speaking of which -- I think we could easily remove checkpoint_warning
without any loss of useful functionality.  Or, if we have to keep it, we
could change the way it works: when that condition triggers, then cause
regular "checkpoint started/complete" messages to occur (if they are
disabled), rather than the current "checkpoints are occurring too
frequently" message.

-- 
Álvaro Herrera         PostgreSQL Developer  —  https://www.EnterpriseDB.com/
"E pur si muove" (Galileo Galilei)