Blz..entendi, como estou configurando para fazer um hot_standby, teria como
zerar esses logs ? pelo que entendi, pode ter até arquivos que nao estao
mais sendo utilizados.




2013/5/17 Fabrízio de Royes Mello <[email protected]>

>
> 2013/5/17 Douglas Fabiano Specht <[email protected]>
> >
> > Boa tarde Pessoal
> > seguinte tenho configurado em checkpoint_segments=100 e
> checkpoint_timeout = 15min
> > ocorre que ao analisar a pasta pg_xlog, tenho la 203 arquivos de 16mb.
> > nao deveria de ter apenas 100 no maximo?
>
> Não... veja o que diz um trecho da documentação extraido de [1]
>
> "There will always be at least one WAL segment file, and will normally not
> be more than (2 + checkpoint_completion_target) * checkpoint_segments + 1
> or checkpoint_segments +wal_keep_segments + 1 files. Each segment file is
> normally 16 MB (though this size can be altered when building the server).
> You can use this to estimate space requirements for WAL. Ordinarily, when
> old log segment files are no longer needed, they are recycled (renamed to
> become the next segments in the numbered sequence). If, due to a short-term
> peak of log output rate, there are more than 3 * checkpoint_segments + 1
> segment files, the unneeded segment files will be deleted instead of
> recycled until the system gets back under this limit."
>
> Att,
>
> [1] http://www.postgresql.org/docs/current/static/wal-configuration.html
>
>
--
> Fabrízio de Royes Mello
> Consultoria/Coaching PostgreSQL
> >> Blog sobre TI: http://fabriziomello.blogspot.com
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>


-- 

Douglas Fabiano Specht
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