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Re: POSIX Shared memory, revised, again

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Chris Marcellino <cmarcellino(at)apple(dot)com>
Cc: pgsql-patches(at)postgresql(dot)org
Subject: Re: POSIX Shared memory, revised, again
Date: 2007-03-25 02:03:03
Message-ID: 200703250203.l2P233w08538@momjian.us (view raw or flat)
Thread:
Lists: pgsql-patches
Your patch has been added to the PostgreSQL unapplied patches list at:

	http://momjian.postgresql.org/cgi-bin/pgpatches

It will be applied as soon as one of the PostgreSQL committers reviews
and approves it.

---------------------------------------------------------------------------


Chris Marcellino wrote:
> So I've finished reformulating this patch to use the device/inode  
> instead of the hash idea I had earlier.
> 
> I have tested this patch (on Darwin) to permit the postmaster to  
> recover after a crash or killing, and it will not permit the  
> postmaster to restart while another postmaster or backends are still  
> in the database (regardless of the lockfile status). The ideas are  
> the same as before, but are described via flowchart in the attached  
> PDF. The three template files opt-out those particular templates from  
> the POSIX shmem, but this could be done alternately by opting-in the  
> desired patches. An autoconf'ing of the patched configure.in file is,  
> of course, required.
> 
> I appreciate the feedback and consideration.
> 
> Thanks again,
> Chris Marcellino
> 
> 
> 

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-- 
  Bruce Momjian  <bruce(at)momjian(dot)us>          http://momjian.us
  EnterpriseDB                               http://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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