Re: pg14b1 stuck in lazy_scan_prune/heap_page_prune of pg_statistic

On 2021-Jun-06, Justin Pryzby wrote:

> However, I also found an autovacuum chewing 100% CPU, and it appears the
> problem is actually because autovacuum has locked a page of pg-statistic, and
> every other process then gets stuck waiting in the planner.  I checked a few
> and found these:

> [...]

Hmm ... I wonder if this could be related to commits d9d076222f5b,
c98763bf51bf, etc.  I don't have any connecting thoughts other than the
tuple visibility code being involved.  Do you see any procs with the
PROC_IN_SAFE_IC flag set?

-- 
Álvaro Herrera                            39°49'30"S 73°17'W