Re: Real time query analyzer

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On 10/18/06 17:22, Jim C. Nasby wrote:
> On Wed, Oct 18, 2006 at 04:27:21PM -0500, Ron Johnson wrote:
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>> On 10/18/06 16:08, Jim C. Nasby wrote:
>>> On Mon, Oct 16, 2006 at 06:10:18PM +0300, Adrian Suciu wrote:
>>>> Hi everybody!
>>>> I ask you for your help on a problem I have.
>>>> I have a postgresql 7.4 running on a dual 4 GB RAM server, but I have
>>>> some VERY memory intense queries, that put processor up to 40%. I see
>>> Note that you're likely to see double the performance of 7.4 by going to
>>> 8.1.5. You'll likely get an even larger gain from 8.2 when it's out.
>> What's the release target for 8.2?
>>
>> (If I get approval and the money, we'll be creating a roughly 8TB
>> database, and in-place upgrade is the only way that we'd be able to
>> migrate from $EXISTING_VERSION to $NEW_VERSION.
>
> There's been very few (any?) bugs reported against beta1, so it could
> potentially be Real Soon Now. If forced to guess, I'd say mid-November,
> but of course the real answer is "when it's ready".
>
> There's also talk of an in-place upgrade tool for 8.1 to 8.2.
>
> In any case, you'll be much, much happier if you do this project on at
> least 8.1.x, as 7.4 is pretty long in the tooth. Due to Red Hat's
> support requirements it will probably remain supported for a few more
> years by Tom/the community, but you might start having issues getting
> commercial support.

We'll be using RHES4, I guess, so if it uses 7.4, then I'll have to
convince the SysAdmin to install 8.1 or 8.2.

x.y.0 always scares me, so it would probably be 8.1.latest.

> Are you planning on backing up straight to tape?

The data CSV files will already be on OpenVMS tapes, so it's not a
*primary* concern.

*If* it gets purchased, and *if* it is put on the gigabit LAN, then
I'd try for some sort of remote backup.

Since the data will be relatively static (only loaded monthly, and
no updates or deletes) and in by-quarter tables, I'm thinking that
it would be adequate to "pg_dump -t" on the /current/ tables, "tar
cj", ftp the tarball it to a machine with a tape drive.

- --
Ron Johnson, Jr.
Jefferson LA USA

Is "common sense" really valid?
For example, it is "common sense" to white-power racists that
whites are superior to blacks, and that those with brown skins
are mud people.
However, that "common sense" is obviously wrong.
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