Re: [HACKERS] Variable Block Size Dilemma

Bruce Momjian <maillist@candle.pha.pa.us>

From: Bruce Momjian <maillist@candle.pha.pa.us>
To: darrenk@insightdist.com (Darren King)
Cc: pgsql-hackers@postgreSQL.org
Date: 1998-01-25T20:21:39Z
Lists: pgsql-hackers
> 
> 
> I'm stuck as to how to make this a parameter for the backend.
> 
> The postmaster could read a pg_blocksize file and then pass that,
> but how could _that_ be set differently when calling the same
> copy of initdb?
> 
> I'd like to avoid having to set it in the Makefile in the way
> that the NAMEDATALEN and OIDNAMELEN variables are set up.
> 
> *small lightbulb on*
> 
> Would it be acceptable for this to be in a file in the PGLIB
> directory?  This could be read in by initdb and then passed along
> to the postgres calls.  Does this seem reasonable and/or clean?
> 
> Or is there a really obvious way that I'm just not seeing right now?

You ask about the block size as part of initdb, and create a file in
/pgsql/data as part of initdb's work.  Then each postmaster reads the
file, and passes the value to each backend as a parameter.

-- 
Bruce Momjian
maillist@candle.pha.pa.us