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Re: Ideas for new features

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: Dave Page <dpage(at)pgadmin(dot)org>
Cc: Guillaume Lelarge <guillaume(at)lelarge(dot)info>, pg <pg(at)kuhnsteffen(dot)de>, pgadmin-hackers <pgadmin-hackers(at)postgresql(dot)org>
Subject: Re: Ideas for new features
Date: 2010-08-23 09:22:27
Message-ID: AANLkTimf2fji4UfrWK_TqotCXz_SKLtCkSiMtAjiDMsf@mail.gmail.com (view raw or flat)
Thread:
Lists: pgadmin-hackers
On Mon, Aug 23, 2010 at 11:18, Dave Page <dpage(at)pgadmin(dot)org> wrote:
> On Mon, Aug 23, 2010 at 10:13 AM, Magnus Hagander <magnus(at)hagander(dot)net> wrote:
>> On Mon, Aug 23, 2010 at 11:10, Dave Page <dpage(at)pgadmin(dot)org> wrote:
>>> On Mon, Aug 23, 2010 at 9:47 AM, Guillaume Lelarge
>>> <guillaume(at)lelarge(dot)info> wrote:
>>>>> *Higher time resolution for pgAdmin jobs. A job should be runable e.g.
>>>>> every 1 second or 10 seconds.
>>>>
>>>> +1 (ticket added, #228).
>>>
>>> And closed it again. This is extremely unlikely to happen - it would
>>> require significant code changes, would significantly increase load on
>>> the server, and is of extremely limited use.
>>
>> I'll buy the significant code-changes, but I dont' see how it would
>> necessarily increase the load on the server. Maybe because I don't
>> know pgagent enough - can you explain how?
>
> Jobs are stored in the database with a 'next run' time that is
> recalculated from the schedules each time the job runs or is modified.
> The agent polls the database for jobs that are at, or past their next
> run time every minute by default. To reduce the resolution to 10
> seconds or even 1 second, we'd need to start polling the database at
> least every 10 or 1 second(s).

Oh. I thought that was cached in the agent.

-- 
 Magnus Hagander
 Me: http://www.hagander.net/
 Work: http://www.redpill-linpro.com/

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