Re: [HACKERS] Re: Max backend limits cleaned up - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [HACKERS] Re: Max backend limits cleaned up
Date
Msg-id 199902221655.LAA29731@candle.pha.pa.us
Whole thread Raw
In response to Re: [HACKERS] Re: Max backend limits cleaned up  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: [HACKERS] Re: Max backend limits cleaned up  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
> Bruce Momjian <maillist@candle.pha.pa.us> writes:
> > I am getting:
> > IpcSemaphoreCreate: semget failed (No space left on device) key=5432017,
> > num=16, permission=600
> > [ later ]
> > I got it working by adding a -N 32 to the postmaster startup.  Looks
> > like my site BSD/OS can't start 64 backends.  Some of my configuration
> > is wrong.  Perhaps we need 32 as the default.
> 
> Yeah, I was thinking about that myself.  I left the default -N setting
> at 64 on the theory that people who had gone to the trouble of making
> sure they had proper kernel configurations should not get surprised by
> v6.5 suddenly reducing the default number-of-backends limit.

The default was always 32, right, so they should not be suprised if they
don't up the limit to 64.  Now, if they modify that config.h value, they
may be suprised.  Is that the problem?


--  Bruce Momjian                        |  http://www.op.net/~candle maillist@candle.pha.pa.us            |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026
 


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