| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com> |
| Cc: | Christoph Berg <myon(at)debian(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Subject: | Re: Non-empty default log_line_prefix |
| Date: | 2016-10-12 17:11:43 |
| Message-ID: | 32719.1476292303@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Jeff Janes <jeff(dot)janes(at)gmail(dot)com> writes:
> On Sun, Oct 2, 2016 at 1:20 PM, Christoph Berg <myon(at)debian(dot)org> wrote:
>> Patch attached. (Still using %t, I don't think %m makes sense for the
>> default.)
> What is the cost of using %m, other than 4 (rather compressible) bytes per
> log entry?
More log I/O, which is not free ... and that remark about compressibility
is bogus for anyone who doesn't pipe their postmaster stderr into gzip.
I'm already afraid that adding the timestamps will get us some pushback
about log volume.
regards, tom lane
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