All jods are done by client code, not manually.
I still did't not understand what you said.
What break what?
Thandks!
------------------
Richard
2010-08-05
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发件人：Heikki Linnakangas
发送日期：2010-08-05 23:21:54
收件人：Richard
抄送：Tom Lane; pgsql-hackers
主题：Re: [HACKERS] Online backup cause boot failure, anyone know why?
On 05/08/10 17:56, Richard wrote:
> I am sorry, my English is poor.
> I was confused by what you said.
> What do you mean by saying "that'd break it"!
Replacing CHECKPOINT_WAIT with CHECKPOINT_IMMEDIATE broke it. Don't do that.
If you want to change the behavior of pg_start_backup() to perform the
checkpoint immediately, change "CHECKPOINT_WAIT" to "CHECKPOINT_WAIT |
CHECKPOINT_IMMEDIATE".
The usual work-around though is not to hack the source code, but perform
a manual CHECKPOINT just before calling pg_start_backuo(). That makes
the checkpoint performed by pg_start_backup() finish quickly.
-- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com