2010/11/1 hubert depesz lubaczewski <depesz@xxxxxxxxxx>: > On Mon, Nov 01, 2010 at 07:18:22PM +0100, Filip RembiaÅkowski wrote: >> 2010/11/1 hubert depesz lubaczewski <depesz@xxxxxxxxxx>: >> >> > as I understand, max number of xlog files in pg_xlog should be ( 1 + 2 * >> > checkpoint_segments ). >> >> why? >> >> for a server overloaded with R/W transactions, it's possible to go beyond this. >> checkpoints just do not keep up. >> right now I have an 8.3 with checkpoint_segments=3, constantly running >> pgbench and I see 8 WAL segments. > > you will notice in the logs that the system doesn't look like very > loaded. > i mean - there is fair amount of work, but nothing even resembling > "overloaded". There exists some checkpoint which occur more frequently than perhaps expected. (less than 15 minutes)... The logline about checkpoint might be usefull. Still I wonder what your question is exactly ? > > Best regards, > > depesz > > -- > Linkedin: http://www.linkedin.com/in/depesz Â/ Âblog: http://www.depesz.com/ > jid/gtalk: depesz@xxxxxxxxxx / aim:depeszhdl / skype:depesz_hdl / gg:6749007 > > -- > Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general > -- CÃdric Villemain      Â 2ndQuadrant http://2ndQuadrant.fr/Â;  PostgreSQL : Expertise, Formation et Support -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
