| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
| Cc: | Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, magnus(at)hagander(dot)net, robertmhaas(at)gmail(dot)com, tgl(at)sss(dot)pgh(dot)pa(dot)us, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: shared-memory based stats collector |
| Date: | 2018-07-11 00:06:05 |
| Message-ID: | 20180711000605.sqjik3vqe5opqz33@alap3.anarazel.de |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On 2018-07-10 14:52:13 +0200, Tomas Vondra wrote:
> There's one more reason why attempts to keep stats snapshots "perfectly"
> consistent are likely doomed to fail - the messages are sent over UDP, which
> does not guarantee delivery etc. So there's always some level of possible
> inconsistency even with "perfectly consistent" snapshots.
FWIW, I don't see us continuing to do so if we go for a shared hashtable
for stats.
- Andres
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Alvaro Herrera | 2018-07-11 00:06:24 | TRUNCATE tables referenced by FKs on partitioned tables |
| Previous Message | Michael Paquier | 2018-07-10 23:58:20 | Re: Non-reserved replication slots and slot advancing |