Re: streamlined standby procedure
От | Csaba Nagy |
---|---|
Тема | Re: streamlined standby procedure |
Дата | |
Msg-id | 1139332622.24321.304.camel@coppola.muc.ecircle.de обсуждение исходный текст |
Ответ на | Re: streamlined standby procedure (Andrew Rawnsley <ronz@investoranalytics.com>) |
Список | pgsql-hackers |
On Tue, 2006-02-07 at 16:58, Andrew Rawnsley wrote: > IMHO the #1 priority in the current PITR/WAL shipping system is to make the > standby able to tolerate being shut down and restarted, i.e. actually having > a true standby mode and not the current method of doing it only on startup. This fits nicely in what I would like to achieve, and it might be actually a better start. > While it is a trivial thing to fool postgres into staying in startup/restore > mode with a restore_command that blocks until more files are available, if > the machine needs to be shut down for whatever reason you have to go back to > the last image and replay to the present, which isn't always convenient. Nor > are you able to shut down the standby, copy it to a second instance to use > for testing/development/whatever, and restart the standby. Why would you shut down the standby to copy it ? It would by nicer to be able build a "standby of the standby" ;-) Even nicer would be to have a stand-by which allows read only access, but I guess that's a tough call. Cheers, Csaba.
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