Re: ps display "waiting for max_standby_delay" - Mailing list pgsql-hackers

From Fujii Masao
Subject Re: ps display "waiting for max_standby_delay"
Date
Msg-id AANLkTim9m1jG3tnFLr7nFb2c9PPSwT3HETY3JKOWo5YJ@mail.gmail.com
Whole thread Raw
In response to Re: ps display "waiting for max_standby_delay"  (Takahiro Itagaki <itagaki.takahiro@oss.ntt.co.jp>)
List pgsql-hackers
On Fri, Jun 11, 2010 at 11:20 AM, Takahiro Itagaki
<itagaki.takahiro@oss.ntt.co.jp> wrote:
>
> Bruce Momjian <bruce@momjian.us> wrote:
>
>> > how about showing actual waiting time instead?
>> >              " waiting for max_standby_delay (%d ms)",
>> >              MaxStandbyDelay)
>>
>> Sounds interesting, but how often would the ps statust display be
>> updated?  I hope not too often.
>
> We can change the interval of updates to 500ms or so if do it,
> but I rethink ps display is not the best place for the information.
>
> I'd like to modify the additonal message "waiting for max_standby_delay"
> just to "waiting", because we don't use "waiting for statement_timeout"
> for normal queries.

+1

I don't think that it's useful to display the value of max_standby_delay.

> If we need additional information about conflictions in recovery,
> we would supply them with SQL views instead of ps display in 9.1.

+1

Regards,

--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center


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