Re: Load distributed checkpoint
| От | Simon Riggs |
|---|---|
| Тема | Re: Load distributed checkpoint |
| Дата | |
| Msg-id | 1165829458.3839.872.camel@silverbirch.site обсуждение исходный текст |
| Ответ на | Re: Load distributed checkpoint ("Takayuki Tsunakawa" <tsunakawa.takay@jp.fujitsu.com>) |
| Список | pgsql-hackers |
On Fri, 2006-12-08 at 11:05 +0900, Takayuki Tsunakawa wrote: > I understand that checkpoints occur during crash > recovery and PITR, so time for those operations would get longer. A restorepoint happens during recovery, not a checkpoint. The recovery is merely repeating the work of the checkpoint that occurred in the original WAL stream. Elongating the checkpoint would not have any effect on a restorepoint: we only record the checkpoint when it is complete and we only create a restorepoint when we see the checkpoint record. Crash recovery and PITR use almost exactly the same code path (by design), so there isn't anything special to say about PITR either. -- Simon Riggs EnterpriseDB http://www.enterprisedb.com
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