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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
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Lists: pgsql-patches
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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 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>

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

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