From: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com> |
---|---|
To: | Guillaume Smet <guillaume(dot)smet(at)gmail(dot)com> |
Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: New trigger option of pg_standby |
Date: | 2009-03-27 02:38:00 |
Message-ID: | 3f0b79eb0903261938l15a6a8b8v5a7f8dec2c795cef@mail.gmail.com |
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Lists: | pgsql-hackers |
Hi,
On Thu, Mar 26, 2009 at 8:54 PM, Guillaume Smet
<guillaume(dot)smet(at)gmail(dot)com> wrote:
> Hi Simon.
>
> On Thu, Mar 26, 2009 at 11:50 AM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
>> Earlier, we discussed having a single trigger file that contains an
>> option rather than two distinct trigger files. That design is better
>> because it allows the user to choose at failover time, rather than
>> making a binding decision at config time. That solution would be the
>> ideal one, IMHO, because it gives user more choice - and would allow us
>> to keep the -t option meaningfully. In that case the default should be
>> patience.
>
> Or you can define both files in your command line to have the choice.
Personally I like this.
> I like the idea of removing -t and adding 2 new options so that people
> are warned about the intended behavior.
OK, I'll change the patch as Simon suggested; removing -t and adding
two new options: -f = fast failover (existing behavior), -p patient failover.
Also I'll default the patient failover, so it's performed when the signal
(SIGINT or SIGUSR1) is received.
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center
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