On 12/29/06, Chris Browne <[EMAIL PROTECTED]> wrote:
[EMAIL PROTECTED] ("Jaime Casanova") writes:
> On 12/28/06, Tom Lane <[EMAIL PROTECTED]> wrote:
>> Galy Lee <[EMAIL PROTECTED]> writes:
>> > So I am thinking another way to perform vacuum. For example vacuum can
>> > be refined in a maintenance time frame like "VACUUM IN 6 HOURS", and
>> > then vacuum operation will be performed within the window. The delay
>> > time is adjusted internally to spread the disk I/O over the time frame.
>> And you will manage that how?  The total amount of work to be done is
>> quite unpredictable.
> specially for something you already can do with cron (*nix) or job
> scheduler (windows)

That seems like a nonsequitor here...

Using cron to try to "make vacuums spread over 6 hours" seems to me
like an attempt to try to do that in as terrible a way possible.

that's entirely my point... what th op was proposing was a command
"VACUUM IN n HOURS"... he want to write the command... he didn't talk
about a tool for monitoring jus a tool that he "fire and forget"... at
least that was the way a read it...

Jaime Casanova

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs and the universe trying
to produce bigger and better idiots.
So far, the universe is winning."
                                      Richard Cook

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