Re: WAL log archival on standby
| От | Michael Paquier |
|---|---|
| Тема | Re: WAL log archival on standby |
| Дата | |
| Msg-id | CAB7nPqTyEh0B83fwqFGw2sK1HrLTJTuNODXE_mTcqgVP5y6oBw@mail.gmail.com обсуждение исходный текст |
| Ответ на | WAL log archival on standby (James Sewell <james.sewell@lisasoft.com>) |
| Ответы |
Re: WAL log archival on standby
|
| Список | pgsql-general |
On Fri, Jun 19, 2015 at 2:38 PM, James Sewell <james.sewell@lisasoft.com> wrote:
-- Hey All,Is it possible to create WAL archive files on standby servers when using streaming replication?
Yes and no, standbys do not archive WAL in ~9.4, but you could use archive_mode = 'always' with the upcoming 9.5.
I know I can use archive_command or pg_receivexlog - but these will both result in me sending information to the standby servers which has already been sent via standard streaming replication. This would result in a doubling of my network traffic.
Ideally I'd prefer to conserve this bandwidth and write the files to a local archive on any active standby.
Both methods you mentioned are the way to go for now I am afraid, or you wait for 9.5.
Regards,
Michael
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