| From: | Julien Rouhaud <rjuju123(at)gmail(dot)com> |
|---|---|
| To: | Tejaswini GC <tejaswini(dot)gc(at)decathlon(dot)com> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: BUG #16334: We recently upgraded PG version from 9.5 to 10.10 and system performance is not so good |
| Date: | 2020-04-04 07:06:38 |
| Message-ID: | 20200404070638.ytfi2lwaxd5sr662@nol |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-bugs pgsql-performance |
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.
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