| From: | Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr> |
|---|---|
| To: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
| Cc: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Sync Rep v19 |
| Date: | 2011-03-03 17:51:11 |
| Message-ID: | m21v2oytww.fsf@2ndQuadrant.fr |
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| Lists: | pgsql-hackers |
Simon Riggs <simon(at)2ndQuadrant(dot)com> writes:
> On Fri, 2011-03-04 at 00:02 +0900, Fujii Masao wrote:
>> > * synchronous_standby_names = "*" matches all standby names
>>
>> Using '*' as the default seems to lead the performance degradation by
>> being connected from unexpected synchronous standby.
>
> You can configure it however you wish. It seemed better to have an out
> of the box setting that was useful.
Well the HBA still needs some opening before anyone can claim to be a
standby. I guess the default line would be commented out and no standby
would be accepted as synchronous by default, assuming this GUC is sighup.
Regards,
--
Dimitri Fontaine
http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support
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