Setting oom_adj on linux?
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From: Alvaro Herrera on 4 Jan 2010 10:45 Magnus Hagander wrote: > I realize this is a very platform-specific thing, but should we > consider setting the value of /proc/<pid>/oom_adj when running on > linux? See: http://archives.postgresql.org/message-id/20080201223336.GC24780%40alvh.no-ip.org -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc. -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
From: Magnus Hagander on 4 Jan 2010 10:57 On Mon, Jan 4, 2010 at 16:45, Alvaro Herrera <alvherre(a)commandprompt.com> wrote: > Magnus Hagander wrote: >> I realize this is a very platform-specific thing, but should we >> consider setting the value of /proc/<pid>/oom_adj when running on >> linux? See: > > http://archives.postgresql.org/message-id/20080201223336.GC24780%40alvh.no-ip.org Grr. I had zero recollectoin of that :S Can't find a useful consensus though? -- Magnus Hagander Me: http://www.hagander.net/ Work: http://www.redpill-linpro.com/ -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
From: "Joshua D. Drake" on 4 Jan 2010 11:03 On Mon, 4 Jan 2010 16:57:28 +0100, Magnus Hagander <magnus(a)hagander.net> wrote: > On Mon, Jan 4, 2010 at 16:45, Alvaro Herrera <alvherre(a)commandprompt.com> > wrote: >> Magnus Hagander wrote: >>> I realize this is a very platform-specific thing, but should we >>> consider setting the value of /proc/<pid>/oom_adj when running on >>> linux? See: >> >> http://archives.postgresql.org/message-id/20080201223336.GC24780%40alvh.no-ip.org > > Grr. I had zero recollectoin of that :S > > Can't find a useful consensus though? I don't think we should set a setting like that automatically. Perhaps a warning on startup? Joshua D. Drake -- PostgreSQL - XMPP: jdrake(at)jabber(dot)postgresql(dot)org Consulting, Development, Support, Training 503-667-4564 - http://www.commandprompt.com/ The PostgreSQL Company, serving since 1997 -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
From: Andrew Dunstan on 4 Jan 2010 11:07 Magnus Hagander wrote: > On Mon, Jan 4, 2010 at 16:45, Alvaro Herrera <alvherre(a)commandprompt.com> wrote: > >> Magnus Hagander wrote: >> >>> I realize this is a very platform-specific thing, but should we >>> consider setting the value of /proc/<pid>/oom_adj when running on >>> linux? See: >>> >> http://archives.postgresql.org/message-id/20080201223336.GC24780%40alvh.no-ip.org >> > > Grr. I had zero recollectoin of that :S > > Can't find a useful consensus though? > > It is probably worth trying to protect the postmaster in the init script. Beyond that things probably start to get fairly difficult. cheers andrew -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
From: Magnus Hagander on 4 Jan 2010 11:10
On Mon, Jan 4, 2010 at 17:07, Andrew Dunstan <andrew(a)dunslane.net> wrote: > > > Magnus Hagander wrote: >> >> On Mon, Jan 4, 2010 at 16:45, Alvaro Herrera <alvherre(a)commandprompt.com> >> wrote: >> >>> >>> Magnus Hagander wrote: >>> >>>> >>>> I realize this is a very platform-specific thing, but should we >>>> consider setting the value of /proc/<pid>/oom_adj when running on >>>> linux? See: >>>> >>> >>> >>> http://archives.postgresql.org/message-id/20080201223336.GC24780%40alvh.no-ip.org >>> >> >> Grr. I had zero recollectoin of that :S >> >> Can't find a useful consensus though? >> >> > > It is probably worth trying to protect the postmaster in the init script. > Beyond that things probably start to get fairly difficult. Right. But AFAICS (though I haven't tested with -17), it will become inherited to children, which is something we'd want to *undo*, no? -- Magnus Hagander Me: http://www.hagander.net/ Work: http://www.redpill-linpro.com/ -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers |