On Tue, Aug 15, 2017 at 11:14 AM, Alvaro Herrera
<alvhe...@2ndquadrant.com> wrote:
> Michael Paquier wrote:
>> On Tue, Aug 15, 2017 at 10:27 AM, Masahiko Sawada <sawada.m...@gmail.com> 
>> wrote:
>> > Currently vacuum verbose outputs vacuum logs as follows. The first log
>> > message INFO: vacuuming "public.hoge" writes the relation name with
>> > schema name but subsequent vacuum logs output only relation name
>> > without schema name. I've encountered a situation where there are some
>> > same name tables in different schemas and the concurrent vacuum logs
>> > made me hard to distinguish tables. Is there any reasons why we don't
>> > write an explicit name in vacuum verbose logs? If not, can we add
>> > schema names to be more clearly?
>> That's definitely a good idea. lazy_vacuum_rel() uses in one place
>> dbname.schname.relname for autovacuum. This is an inconsistent bit,
>> but that's not really worth changing and there is always
>> log_line_prefix = '%d'.
> Worth keeping in mind that INFO messages do not normally go to the
> server log, but rather only to the client.  If it were a problem at the
> server side, you could also suggest adding %p to the log line prefix to
> disambiguate.  Maybe the scenario where this is a real problem is
> vacuumdb -j ...

Yeah, the situation I encountered is that. Invoke vaucuumdb -j and
save its logs to check later.


Masahiko Sawada
NTT Open Source Software Center

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