Re: Standalone synchronous master
От | Joshua D. Drake |
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Тема | Re: Standalone synchronous master |
Дата | |
Msg-id | 52D0430B.7000000@commandprompt.com обсуждение исходный текст |
Ответ на | Re: Standalone synchronous master (Bruce Momjian <bruce@momjian.us>) |
Ответы |
Re: Standalone synchronous master
Re: Standalone synchronous master |
Список | pgsql-hackers |
On 01/10/2014 07:47 AM, Bruce Momjian wrote: > I know there was a desire to remove this TODO item, but I think we have > brought up enough new issues that we can keep it to see if we can come > up with a solution. I have added a link to this discussion on the TODO > item. > > I think we will need at least four new GUC variables: > > * timeout control for degraded mode > * command to run during switch to degraded mode > * command to run during switch from degraded mode > * read-only variable to report degraded mode > I know I am the one that instigated all of this so I want to be very clear on what I and what I am confident that my customers would expect. If a synchronous slave goes down, the master continues to operate. That is all. I don't care if it is configurable (I would be fine with that). I don't care if it is not automatic (e.g; slave goes down and we have to tell the master to continue). I have read through this thread more than once, and I have also went back to the docs. I understand why we do it the way we do it. I also understand that from a business requirement for 99% of CMD's customers, it's wrong. At least in the sense of providing continuity of service. Sincerely, JD -- Command Prompt, Inc. - http://www.commandprompt.com/ 509-416-6579 PostgreSQL Support, Training, Professional Services and Development High Availability, Oracle Conversion, Postgres-XC, @cmdpromptinc "In a time of universal deceit - telling the truth is a revolutionary act.", George Orwell
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