Once again, pros and cons should be left to users discretion because one may 
have latest and greatest hardware and network resources. For example a SSD on a 
fiber channel on a high speed network.


Regards,
rs

On Jan 9, 2012, at 7:06 PM, "Tom Lane" <t...@sss.pgh.pa.us> wrote:

> Scott Marlowe <scott.marl...@gmail.com> writes:
>> On Mon, Jan 9, 2012 at 4:58 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
>>> There are tradeoffs in the other direction too, but if you feel you must
>>> have a different value, see configure's --with-wal-segsize option.  Note
>>> that you cannot change this without re-initdb.
> 
>> Is there a limit to the max size?
> 
> Hmm, it looks like the configure script only allows 1-64MB.  I'm not
> sure offhand if that's protecting a restriction elsewhere, or just
> not bothering to extend the switch for more cases.  Keep in mind that
> the larger you make this, the more data you can lose because it wasn't
> archived yet when your master machine failed.
> 
>            regards, tom lane

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