| From: | "tsunakawa(dot)takay(at)fujitsu(dot)com" <tsunakawa(dot)takay(at)fujitsu(dot)com> |
|---|---|
| To: | 'Fujii Masao' <masao(dot)fujii(at)oss(dot)nttdata(dot)com>, Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com> |
| Cc: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, "Andrey V(dot) Lepikhov" <a(dot)lepikhov(at)postgrespro(dot)ru>, "movead(dot)li(at)highgo(dot)ca" <movead(dot)li(at)highgo(dot)ca>, PostgreSQL-Dev <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | RE: Global snapshots |
| Date: | 2020-10-28 07:20:16 |
| Message-ID: | TYAPR01MB299083299DA94BA849358BEEFE170@TYAPR01MB2990.jpnprd01.prod.outlook.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Fujii-san, Sawada-san, all,
From: Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com>
> Yeah, so if we need to guarantee the transaction linearizability even
> in distributed env (probably this is yes. Right?), using only Clock-SI
> is not enough. We would need to implement something more
> in addition to Clock-SI or adopt the different approach other than Clock-SI.
> Thought?
Could you please try interpreting MVCO and see if we have any hope in this? This doesn't fit in my small brain. I'll catch up with understanding this when I have time.
MVCO - Technical report - IEEE RIDE-IMS 93 (PDF; revised version of DEC-TR 853)
https://sites.google.com/site/yoavraz2/MVCO-WDE.pdf
MVCO is a multiversion member of Commitment Ordering algorithms described below:
Commitment ordering (CO) - yoavraz2
https://sites.google.com/site/yoavraz2/the_principle_of_co
Commitment ordering - Wikipedia
https://en.wikipedia.org/wiki/Commitment_ordering
Related patents are as follows. The last one is MVCO.
US5504900A - Commitment ordering for guaranteeing serializability across distributed transactions
https://patents.google.com/patent/US5504900A/en?oq=US5504900
US5504899A - Guaranteeing global serializability by applying commitment ordering selectively to global transactions
https://patents.google.com/patent/US5504899A/en?oq=US5504899
US5701480A - Distributed multi-version commitment ordering protocols for guaranteeing serializability during transaction processing
https://patents.google.com/patent/US5701480A/en?oq=US5701480
Regards
Takayuki Tsunakawa
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tatsuro Yamada | 2020-10-28 07:20:25 | Re: list of extended statistics on psql |
| Previous Message | Laurenz Albe | 2020-10-28 07:18:08 | Re: Disable WAL logging to speed up data loading |