Re: Michael Paquier 2016-02-10
> On Mon, Feb 8, 2016 at 11:32 PM, Andres Freund <and...@anarazel.de> wrote:
> > Frequently when reading postgres logs to do some post mortem analysis
> > I'm left wondering what process emitted an error/log message. After the
> > fact it's often hard to know wether an error message was emitted by a
> > user backend or by something internal, say the checkpointer or
> > autovacuum. Logging all process starts is often impractical given the
> > log volume that causes.
> > So I'm proposing adding an escape displaying the process title (say 'k'
> > for kind?). So %k would emit something like "autovacuum worker process",
> > "wal sender process" etc.
> It would be nice to get something consistent between the ps output and
> this new prefix, say with for example a miscadmin.h parameter like
> > I'm thinking it might make sense to give normal connections "" as the
> > name, they're usually already discernible.
> Yeah, that sounds fine for me. What about background workers? I would
> think that they should use BackgroundWorker->bgw_name.
(Rediscovering an old horse)
Couldn't these processes just set %a = application_name? (This would
obviously need %q to be taught that %a is always valid.)
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