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Re: pgAgent: Log connection error message and initial connection

From: Dave Page <dpage(at)pgadmin(dot)org>
To: Ashesh Vashi <ashesh(dot)vashi(at)enterprisedb(dot)com>
Cc: pgadmin-hackers <pgadmin-hackers(at)postgresql(dot)org>
Subject: Re: pgAgent: Log connection error message and initial connection
Date: 2009-02-10 17:09:36
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgadmin-hackers
On Fri, Feb 6, 2009 at 2:33 PM, Ashesh Vashi
<ashesh(dot)vashi(at)enterprisedb(dot)com> wrote:
> Hi Dave,
> - If the initial connection attempt fails, it will loop, and
>   retry a few times at the speed of the normal timing loop
>   before giving up.
> Hmm, I don't see any of the service code I expected to see for
> Windows. At the moment when the service starts we start MainLoop() and
> immediately tell the SCM that the service state is 'running'. What we
> should do, is tell the SCM that the service is starting until the
> primary connection is successful, and only then tell the SCM that
> we're running. That way, the service will refuse to start if the
> connection cannot be made, rather than starting and then stopping
> again. It'll also mean that when starting the service manually, the
> progress bar will be shown until the connection is established and we
> know everything is good.
> That's the code I mentioned I'd worked on in pg_ctl - in particular
> look at the do_checkpoint related stuff in
> test_postmaster_connection() which is how we tell the SCM that we're
> still trying to startup.
> Please find the updated patch for that.

Thanks - patch applied with some minor cosmetic tweaking, and removal
of the START_SUSPENDED stuff that we never used anyway.

Dave Page
EnterpriseDB UK:

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