Re: replication in Postgres
От | Ow Mun Heng |
---|---|
Тема | Re: replication in Postgres |
Дата | |
Msg-id | 1199322156.4569.3.camel@neuromancer.home.net обсуждение исходный текст |
Ответ на | Re: replication in Postgres (Chris Browne <cbbrowne@acm.org>) |
Список | pgsql-general |
On Mon, 2007-11-26 at 12:39 -0500, Chris Browne wrote: > jlar310@gmail.com ("Jeff Larsen") writes: > Unfortunately, the only way to make things deterministic (or to get > from "near real time" to "*GUARANTEED* real time") is to jump to > synchronous replication, which is not much different from 2PC (Two > Phase Commit), and which is certain to be prohibitively expensive > across a WAN. > 2PC is costly and will make things slow overall if there ever was issues with the WAN. And to alleviate that, I believe one would have to get a dedicated WAN line just for the syncing process. Expensive.. Anyone can Spell S-L-A?? > At this point, I tend to get visions of Tom Cruise telling Jack > Nicholson, "I want real time replication!", and getting the response: > "You can't HANDLE real time replication!" Woo.. I like this movie. _best_ court scene _ever_!
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