Re: 8.1beta, SunOS and shmget

On Mon, 29 Aug 2005, Tom Lane wrote:
> "Sergey E. Koposov" <math(at)sai(dot)msu(dot)ru> writes:
> > So, are the shared memory requirements increased for 8.1 ?
>
> Yes; mostly from 2PC support I think. Try reducing
> max_prepared_transactions. (We might want to debate whether the default
> setting should be smaller than 50 --- it looks to me like that's adding
> over 700K to the default shared memory block size.)

Yes, the decreasing of max_prepared_transaction helped (after some
testing, I've found that the max_prepared_transactions=3
max_connections=10 shared_buffers=20 was well enough to fit 1mb of
shared memory)(unfortunatly max_connections=10 is not enough to run
fully the make check :(, but I cannot raise more the max_connections
parameter)

But I'm a bit surprised. Since, the initdb didn't worked from the very
beginning it was not possible to change postgresql.conf, and I was forced
to change the postgres sources initdb.c and guc.c, than recompile and
check whether initdb works. Is that normal way to do it?

With Best regards,

Sergey

*****************************************************
Sergey E. Koposov
Max-Planck Institut fuer Astronomie
Web: http://lnfm1.sai.msu.ru/~math
E-mail: math(at)sai(dot)msu(dot)ru