Once again, please don't top post.
On Sat, Apr 04, 2020 at 11:57:02AM +0530, Tejaswini GC wrote:
> Hello Julien,
>
> The procedure for doing the upgrade is different for AWS.
>
And is it possible to know what the procedure was?
>
> After the PG upgrade we can see many locks in our system we believe this is
> the main reason for the issue we are facing,
> I can see these locks when using pg_stat_activity.
>
Any more details? Are you talking of heavyweight locks or lightweight locks?
Since version 9.6 both are visible in pg_stat_activity.
> Along with that few queries which were executing within millisecond are
> taking more than few hours.
>
Please follow https://wiki.postgresql.org/wiki/Slow_Query_Questions to provide
more details.